coinexchange.io

coinexchange.io may not be SSL secured

Free website and domain report on coinexchange.io

Last Updated: 25th May, 2021 Update Now
Overview

Snoop Summary for coinexchange.io

This is a free and comprehensive report about coinexchange.io. The domain coinexchange.io is currently hosted on a server located in Germany with the IP address 65.21.91.227, where EUR is the local currency and the local language is German. Coinexchange.io has the potential to be earning an estimated $15 USD per day from advertising revenue. If coinexchange.io was to be sold it would possibly be worth $10,781 USD (based on the daily revenue potential of the website over a 24 month period). Coinexchange.io is very popular with an estimated 5,177 daily unique visitors. This report was last updated 25th May, 2021.

About coinexchange.io

Site Preview: coinexchange.io coinexchange.io
Title:
Description:
Keywords and Tags: marketing, merchandising
Related Terms:
Fav Icon:
Age: Over 7 years old
Domain Created: 1st September, 2016
Domain Updated: 12th October, 2018
Domain Expires: 1st September, 2023
Review

Snoop Score

2/5

Valuation

$10,781 USD
Note: All valuation figures are estimates.

Popularity

High
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 108,657
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority: 0
Moz Page Authority: 0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors: 5,177
Monthly Visitors: 157,572
Yearly Visitors: 1,889,605
Note: All visitors figures are estimates.

Visitors By Country

Revenue

Revenue

Daily Revenue: $15 USD
Monthly Revenue: $449 USD
Yearly Revenue: $5,385 USD
Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top New Follow Links

Top Ranking Keywords (US)

Domain Analysis

Value Length
Domain: coinexchange.io 15
Domain Name: coinexchange 12
Extension (TLD): io 2
Expiry Check:

Page Speed Analysis

Average Load Time: 2.15 seconds
Load Time Comparison: Faster than 40% of sites

PageSpeed Insights

Avg. (All Categories) 82
Performance 93
Accessibility 94
Best Practices 87
SEO 91
Progressive Web App 45
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://coinexchange.io/
Updated: 25th May, 2021

2.21 seconds
First Contentful Paint (FCP)
45%
46%
9%

0.00 seconds
First Input Delay (FID)
99%
1%
0%

Simulate loading on desktop
93

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for coinexchange.io. This includes details about optimizing page load times which can result in a better user experience.

Metrics

First Contentful Paint — 0.9 s
The time taken for the first image or text on the page to be rendered.
Largest Contentful Paint — 1.1 s
The timing of the largest text or image that is painted.
Time to Interactive — 1.1 s
The time taken for the page to become fully interactive.
Total Blocking Time — 10 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Cumulative Layout Shift — 0
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

First CPU Idle — 0.9 s
The time taken for the page's main thread to be quiet enough to handle input.
Max Potential First Input Delay — 60 ms
Users could experience a delay when interacting with the page.
First Meaningful Paint — 0.9 s
The time taken for the primary content of the page to be rendered.
Estimated Input Latency — 10 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive coinexchange.io as laggy when the latency is higher than 0.05 seconds.
Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://coinexchange.io/
http/1.1
0
259.3839999754
265
0
301
text/html
https://coinexchange.io/
http/1.1
260.06000000052
976.99899994768
2717
8534
200
text/html
Document
https://coinexchange.io/css/bootstrap.css
http/1.1
990.46799982898
1883.4019999485
19774
132505
200
text/css
Stylesheet
https://coinexchange.io/css/custom-light.css
http/1.1
990.60099991038
1488.1919999607
375
74
200
text/css
Stylesheet
https://coinexchange.io/css/animate.css
http/1.1
990.86699984036
1757.3410000186
5373
69727
200
text/css
Stylesheet
https://coinexchange.io/css/main.css?v=4
http/1.1
991.16400000639
1756.1009998899
3924
15575
200
text/css
Stylesheet
https://coinexchange.io/css/perfect-scrollbar.css
http/1.1
991.45299987867
1722.131999908
1040
5899
200
text/css
Stylesheet
https://fonts.googleapis.com/css?family=Lato
h2
991.68500001542
1006.7649998236
1085
675
200
text/css
Stylesheet
https://fonts.googleapis.com/css?family=Metrophobic
h2
991.88199988566
1003.3879999537
1179
1056
200
text/css
Stylesheet
https://fonts.googleapis.com/css?family=Roboto
h2
992.02300002798
1006.2929999549
1266
2022
200
text/css
Stylesheet
https://coinexchange.io/js/jquery-1.11.1.min.js
http/1.1
992.31699993834
1881.7939998116
33537
95786
200
application/javascript
Script
https://coinexchange.io/js/jquery.color.js
http/1.1
992.67399986275
1725.892999908
5655
16545
200
application/javascript
Script
https://coinexchange.io/js/perfect-scrollbar.jquery.js
http/1.1
993.17799997516
1761.1829999369
9465
47485
200
application/javascript
Script
https://coinexchange.io/assets/images/logo_new_3.png
http/1.1
1923.5469999257
2477.3170000408
43036
42790
200
image/png
Image
https://coinexchange.io/bundles/fosjsrouting/js/router.js
http/1.1
1885.4239999782
2359.7869998775
2298
4335
200
application/javascript
Script
https://coinexchange.io/js/routing?callback=fos.Router.setData
http/1.1
1892.2780000139
2398.5639999155
476
406
200
application/javascript
Script
https://coinexchange.io/js/bootstrap.js
http/1.1
1922.8189999703
2364.3369998317
12707
60681
200
application/javascript
Script
https://coinexchange.io/js/ion.sound.js
http/1.1
1923.1169999111
2432.3070000391
4677
28679
200
application/javascript
Script
https://coinexchange.io/js/jquery.filtertable.js
http/1.1
1923.3349999413
2432.9539998434
3973
16180
200
application/javascript
Script
https://www.google-analytics.com/analytics.js
h2
1923.746000044
1928.5059999675
20198
49153
200
text/javascript
Script
https://fonts.gstatic.com/s/lato/v17/S6uyw4BMUTPHjx4wXiWtFCc.woff2
h2
1929.8009998165
1934.1909999494
14651
14044
200
font/woff2
Font
https://fonts.gstatic.com/s/roboto/v27/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
h2
1930.4029999766
1933.4609999787
11640
11032
200
font/woff2
Font
https://www.google-analytics.com/j/collect?v=1&_v=j90&a=190365644&t=pageview&_s=1&dl=https%3A%2F%2Fcoinexchange.io%2F&ul=en-us&de=UTF-8&dt=CoinExchange.io%20-%20Crypto%20Currency%20Altcoin%20Exchange&sd=24-bit&sr=800x600&vp=1350x940&je=0&_u=IEBAAEABAAAAAC~&jid=2079729757&gjid=779524285&cid=990003585.1621955544&tid=UA-74765033-1&_gid=1434593382.1621955544&_r=1&_slc=1&z=127235704
h2
2002.4520000443
2007.6009999029
621
4
200
text/plain
XHR
https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j90&tid=UA-74765033-1&cid=990003585.1621955544&jid=2079729757&gjid=779524285&_gid=1434593382.1621955544&_u=IEBAAEAAAAAAAC~&z=2102300753
h2
2011.0829998739
2019.1019999329
691
1
200
text/plain
XHR
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
1009.473
8.269
1914.318
6.793
1921.622
31.064
1952.703
19.031
1979.126
5.477
1985.064
47.103
2429.637
7.661
2463.703
65.198
2529.182
6.192
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Opportunities

Properly size images — Potential savings of 41 KiB
Images can slow down the page's load time. Coinexchange.io should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://coinexchange.io/assets/images/logo_new_3.png
42790
41751
Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Coinexchange.io should consider lazy-loading offscreen and hidden images.
Minify CSS — Potential savings of 3 KiB
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Coinexchange.io should consider minifying CSS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://coinexchange.io/css/bootstrap.css
19774
3401
Minify JavaScript — Potential savings of 13 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Coinexchange.io should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://coinexchange.io/js/bootstrap.js
12707
4450
https://coinexchange.io/js/jquery.filtertable.js
3973
2587
https://coinexchange.io/js/jquery.color.js
5655
2269
https://coinexchange.io/js/ion.sound.js
4677
2125
https://coinexchange.io/js/perfect-scrollbar.jquery.js
9465
2050
Remove unused CSS — Potential savings of 18 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Coinexchange.io should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://coinexchange.io/css/bootstrap.css
19774
18535
Remove unused JavaScript — Potential savings of 21 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://coinexchange.io/js/jquery-1.11.1.min.js
33537
21754
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Serve images in next-gen formats — Potential savings of 24 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://coinexchange.io/assets/images/logo_new_3.png
42790
24370
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Avoid multiple page redirects — Potential savings of 190 ms
Redirects can cause additional delays before the page can begin loading. Coinexchange.io should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://coinexchange.io/
190
https://coinexchange.io/
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Coinexchange.io should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.

Diagnostics

Avoids enormous network payloads — Total size was 196 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://coinexchange.io/assets/images/logo_new_3.png
43036
https://coinexchange.io/js/jquery-1.11.1.min.js
33537
https://www.google-analytics.com/analytics.js
20198
https://coinexchange.io/css/bootstrap.css
19774
https://fonts.gstatic.com/s/lato/v17/S6uyw4BMUTPHjx4wXiWtFCc.woff2
14651
https://coinexchange.io/js/bootstrap.js
12707
https://fonts.gstatic.com/s/roboto/v27/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
11640
https://coinexchange.io/js/perfect-scrollbar.jquery.js
9465
https://coinexchange.io/js/jquery.color.js
5655
https://coinexchange.io/css/animate.css
5373
Avoids an excessive DOM size — 60 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
60
Maximum DOM Depth
11
Maximum Child Elements
10
Avoid chaining critical requests — 16 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Coinexchange.io should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
JavaScript execution time — 0.1 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://coinexchange.io/js/ion.sound.js
64.956
62.762
1.663
https://www.google-analytics.com/analytics.js
51.267
44.306
3.64
Minimizes main-thread work — 0.2 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
141.99
Other
42.224
Parse HTML & CSS
21.873
Style & Layout
21.669
Script Parsing & Compilation
15.479
Rendering
3.568
Keep request counts low and transfer sizes small — 24 requests • 196 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
24
200623
Script
9
92986
Image
1
43036
Stylesheet
8
34016
Font
2
26291
Document
1
2717
Other
3
1577
Media
0
0
Third-party
8
51331
Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
29821
0
20819
0
691
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Avoid large layout shifts
Below is a list of all DOM elements that contribute to the CLS of the page.
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 1 long task found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://coinexchange.io/js/ion.sound.js
1370
65
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

Speed Index — 1.6 s
The time taken for the page contents to be visibly populated.

Opportunities

Eliminate render-blocking resources — Potential savings of 660 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Coinexchange.io should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://coinexchange.io/css/bootstrap.css
19774
150
https://coinexchange.io/css/custom-light.css
375
150
https://coinexchange.io/css/animate.css
5373
150
https://coinexchange.io/css/main.css?v=4
3924
150
https://coinexchange.io/css/perfect-scrollbar.css
1040
150
https://fonts.googleapis.com/css?family=Lato
1085
230
https://coinexchange.io/js/jquery-1.11.1.min.js
33537
270
https://coinexchange.io/js/jquery.color.js
5655
70
https://coinexchange.io/js/perfect-scrollbar.jquery.js
9465
110

Opportunities

Reduce initial server response time — Root document took 720 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://coinexchange.io/
717.936

Diagnostics

Serve static assets with an efficient cache policy — 14 resources found
Coinexchange.io can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://coinexchange.io/assets/images/logo_new_3.png
0
43036
https://coinexchange.io/js/jquery-1.11.1.min.js
0
33537
https://coinexchange.io/css/bootstrap.css
0
19774
https://coinexchange.io/js/bootstrap.js
0
12707
https://coinexchange.io/js/perfect-scrollbar.jquery.js
0
9465
https://coinexchange.io/js/jquery.color.js
0
5655
https://coinexchange.io/css/animate.css
0
5373
https://coinexchange.io/js/ion.sound.js
0
4677
https://coinexchange.io/js/jquery.filtertable.js
0
3973
https://coinexchange.io/css/main.css?v=4
0
3924
https://coinexchange.io/bundles/fosjsrouting/js/router.js
0
2298
https://coinexchange.io/css/perfect-scrollbar.css
0
1040
https://coinexchange.io/css/custom-light.css
0
375
https://www.google-analytics.com/analytics.js
7200000
20198
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://fonts.gstatic.com/s/lato/v17/S6uyw4BMUTPHjx4wXiWtFCc.woff2
4.3900001328439
https://fonts.gstatic.com/s/roboto/v27/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
3.0580000020564
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL Failing Elements
https://coinexchange.io/assets/images/logo_new_3.png
94

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of coinexchange.io. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Coinexchange.io may provide assistance to deaf or hearing-impaired users with captions on videos.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements

Internationalization and localization

`<html>` element does not have a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
Failing Elements

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
87

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that coinexchange.io should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Links to cross-origin destinations are safe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
Bootstrap
3.2.0
jQuery
1.11.1
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://coinexchange.io/
Allowed
Includes front-end JavaScript libraries with known security vulnerabilities — 9 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
5
Medium
4
Medium
91

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for coinexchange.io. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of coinexchange.io on mobile screens.
Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Content Best Practices

Document does not have a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
45

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of coinexchange.io. This includes details about web app manifests.

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of coinexchange.io on mobile screens.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 76
Performance 59
Accessibility 94
Best Practices 87
SEO 92
Progressive Web App 50
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://coinexchange.io/
Updated: 25th May, 2021

3.18 seconds
First Contentful Paint (FCP)
30%
43%
27%

0.01 seconds
First Input Delay (FID)
97%
2%
1%

Simulate loading on mobile
59

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for coinexchange.io. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Cumulative Layout Shift — 0
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Opportunities

Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Coinexchange.io should consider lazy-loading offscreen and hidden images.
Minify CSS — Potential savings of 3 KiB
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Coinexchange.io should consider minifying CSS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://coinexchange.io/css/bootstrap.css
19774
3401
Minify JavaScript — Potential savings of 13 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Coinexchange.io should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://coinexchange.io/js/bootstrap.js
12707
4450
https://coinexchange.io/js/jquery.filtertable.js
3973
2587
https://coinexchange.io/js/jquery.color.js
5655
2269
https://coinexchange.io/js/ion.sound.js
4677
2125
https://coinexchange.io/js/perfect-scrollbar.jquery.js
9465
2050
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 500 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://coinexchange.io/
499.285
Avoid multiple page redirects — Potential savings of 630 ms
Redirects can cause additional delays before the page can begin loading. Coinexchange.io should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://coinexchange.io/
630
https://coinexchange.io/
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Coinexchange.io should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.

Diagnostics

Avoids enormous network payloads — Total size was 196 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://coinexchange.io/assets/images/logo_new_3.png
43036
https://coinexchange.io/js/jquery-1.11.1.min.js
33537
https://www.google-analytics.com/analytics.js
20199
https://coinexchange.io/css/bootstrap.css
19774
https://fonts.gstatic.com/s/lato/v17/S6uyw4BMUTPHjx4wXiWtFCc.woff2
14652
https://coinexchange.io/js/bootstrap.js
12707
https://fonts.gstatic.com/s/roboto/v27/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
11640
https://coinexchange.io/js/perfect-scrollbar.jquery.js
9465
https://coinexchange.io/js/jquery.color.js
5655
https://coinexchange.io/css/animate.css
5373
Avoids an excessive DOM size — 60 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
60
Maximum DOM Depth
11
Maximum Child Elements
10
Avoid chaining critical requests — 16 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Coinexchange.io should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Keep request counts low and transfer sizes small — 24 requests • 196 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
24
200645
Script
9
92987
Image
1
43036
Stylesheet
8
34026
Font
2
26292
Document
1
2717
Other
3
1587
Media
0
0
Third-party
8
51365
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Avoid large layout shifts
Below is a list of all DOM elements that contribute to the CLS of the page.
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 7 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://coinexchange.io/js/bootstrap.js
4680
582
https://www.google-analytics.com/analytics.js
2537
467
https://coinexchange.io/js/jquery-1.11.1.min.js
3269
419
https://coinexchange.io/
1185
272
https://www.google-analytics.com/analytics.js
3004
265
https://coinexchange.io/
1457
189
https://coinexchange.io/
1646
156
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Other

Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://coinexchange.io/
http/1.1
0
166.38999991119
253
0
301
text/html
https://coinexchange.io/
http/1.1
167.02999989502
665.31899990514
2717
8534
200
text/html
Document
https://coinexchange.io/css/bootstrap.css
http/1.1
685.68299990147
1286.332000047
19774
132505
200
text/css
Stylesheet
https://coinexchange.io/css/custom-light.css
http/1.1
686.03199999779
1166.4009999949
375
74
200
text/css
Stylesheet
https://coinexchange.io/css/animate.css
http/1.1
686.33099994622
1166.8430001009
5373
69727
200
text/css
Stylesheet
https://coinexchange.io/css/main.css?v=4
http/1.1
686.53700011782
1398.9460000303
3924
15575
200
text/css
Stylesheet
https://coinexchange.io/css/perfect-scrollbar.css
http/1.1
688.05400002748
1165.1550000533
1040
5899
200
text/css
Stylesheet
https://fonts.googleapis.com/css?family=Lato
h2
688.43299988657
769.87299998291
1085
675
200
text/css
Stylesheet
https://fonts.googleapis.com/css?family=Metrophobic
h2
689.38000011258
769.27400007844
1157
1056
200
text/css
Stylesheet
https://fonts.googleapis.com/css?family=Roboto
h2
689.59300010465
768.77199998125
1298
2463
200
text/css
Stylesheet
https://coinexchange.io/js/jquery-1.11.1.min.js
http/1.1
689.94199996814
1573.5349999741
33537
95786
200
application/javascript
Script
https://coinexchange.io/js/jquery.color.js
http/1.1
690.16900006682
1166.0090000369
5655
16545
200
application/javascript
Script
https://coinexchange.io/js/perfect-scrollbar.jquery.js
http/1.1
690.33099990338
1168.7050000764
9465
47485
200
application/javascript
Script
https://coinexchange.io/assets/images/logo_new_3.png
http/1.1
1686.5610000677
2465.683999937
43036
42790
200
image/png
Image
https://coinexchange.io/bundles/fosjsrouting/js/router.js
http/1.1
1400.8019999601
1873.1899999548
2298
4335
200
application/javascript
Script
https://coinexchange.io/js/routing?callback=fos.Router.setData
http/1.1
1584.3929999974
1882.8680000734
476
406
200
application/javascript
Script
https://coinexchange.io/js/bootstrap.js
http/1.1
1684.2169999145
2190.9839999862
12707
60681
200
application/javascript
Script
https://coinexchange.io/js/ion.sound.js
http/1.1
1686.0529999249
2165.4419999104
4677
28679
200
application/javascript
Script
https://coinexchange.io/js/jquery.filtertable.js
http/1.1
1686.371000018
2168.7260000035
3973
16180
200
application/javascript
Script
https://www.google-analytics.com/analytics.js
h2
1686.7400000338
1694.9769998901
20199
49153
200
text/javascript
Script
https://fonts.gstatic.com/s/lato/v17/S6uyw4BMUTPHjx4wXiWtFCc.woff2
h2
1697.5950000342
1766.1220000591
14652
14044
200
font/woff2
Font
https://fonts.gstatic.com/s/roboto/v27/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
h2
1771.2250000332
1774.6490000281
11640
11032
200
font/woff2
Font
https://www.google-analytics.com/j/collect?v=1&_v=j90&a=1124229038&t=pageview&_s=1&dl=https%3A%2F%2Fcoinexchange.io%2F&ul=en-us&de=UTF-8&dt=CoinExchange.io%20-%20Crypto%20Currency%20Altcoin%20Exchange&sd=24-bit&sr=360x640&vp=360x640&je=0&_u=IEBAAEABAAAAAC~&jid=232998867&gjid=852840952&cid=862307271.1621955567&tid=UA-74765033-1&_gid=669487181.1621955567&_r=1&_slc=1&z=1740456146
h2
1988.2139998954
1994.1970000509
643
4
200
text/plain
XHR
https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j90&tid=UA-74765033-1&cid=862307271.1621955567&jid=232998867&gjid=852840952&_gid=669487181.1621955567&_u=IEBAAEAAAAAAAC~&z=1388642779
h2
2070.6780001055
2084.1109999456
691
1
200
text/plain
XHR
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
799.279
10.963
812.715
7.824
1299.689
7.981
1418.878
7.536
1531.071
67.982
1713.447
104.72
1818.187
94.63
1922.983
78.189
2002.029
116.791
2130.249
66.227
2323.935
290.817
3624.764
7.264
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Metrics

First Contentful Paint — 3.2 s
The time taken for the first image or text on the page to be rendered.
Speed Index — 5.0 s
The time taken for the page contents to be visibly populated.
Largest Contentful Paint — 3.4 s
The timing of the largest text or image that is painted.
Time to Interactive — 4.8 s
The time taken for the page to become fully interactive.

Other

First CPU Idle — 4.4 s
The time taken for the page's main thread to be quiet enough to handle input.
First Meaningful Paint — 3.2 s
The time taken for the primary content of the page to be rendered.
First Contentful Paint (3G) — 5969.5 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.

Opportunities

Properly size images — Potential savings of 35 KiB
Images can slow down the page's load time. Coinexchange.io should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://coinexchange.io/assets/images/logo_new_3.png
42790
35634
Remove unused CSS — Potential savings of 18 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Coinexchange.io should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://coinexchange.io/css/bootstrap.css
19774
18913
Remove unused JavaScript — Potential savings of 21 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://coinexchange.io/js/jquery-1.11.1.min.js
33537
21754
Serve images in next-gen formats — Potential savings of 24 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://coinexchange.io/assets/images/logo_new_3.png
42790
24370

Diagnostics

Reduce JavaScript execution time — 2.5 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://coinexchange.io/
1100.888
283.584
8.7
https://coinexchange.io/js/ion.sound.js
1098.78
1091.136
7.644
https://www.google-analytics.com/analytics.js
736.92
717.44
6.764
https://coinexchange.io/js/jquery-1.11.1.min.js
385.412
362.664
10.572
Unattributable
155.152
6.04
1.088
Minimize main-thread work — 3.6 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
2507.672
Other
514.88
Style & Layout
397.232
Parse HTML & CSS
121.384
Script Parsing & Compilation
59.396
Rendering
43.076

Metrics

Total Blocking Time — 960 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Other

Max Potential First Input Delay — 580 ms
Users could experience a delay when interacting with the page.
Estimated Input Latency — 240 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive coinexchange.io as laggy when the latency is higher than 0.05 seconds.

Opportunities

Eliminate render-blocking resources — Potential savings of 2,090 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Coinexchange.io should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://coinexchange.io/css/bootstrap.css
19774
780
https://coinexchange.io/css/custom-light.css
375
480
https://coinexchange.io/css/animate.css
5373
630
https://coinexchange.io/css/main.css?v=4
3924
480
https://coinexchange.io/css/perfect-scrollbar.css
1040
480
https://fonts.googleapis.com/css?family=Lato
1085
780
https://fonts.googleapis.com/css?family=Metrophobic
1157
150
https://coinexchange.io/js/jquery-1.11.1.min.js
33537
1080
https://coinexchange.io/js/jquery.color.js
5655
330
https://coinexchange.io/js/perfect-scrollbar.jquery.js
9465
480

Diagnostics

Serve static assets with an efficient cache policy — 14 resources found
Coinexchange.io can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://coinexchange.io/assets/images/logo_new_3.png
0
43036
https://coinexchange.io/js/jquery-1.11.1.min.js
0
33537
https://coinexchange.io/css/bootstrap.css
0
19774
https://coinexchange.io/js/bootstrap.js
0
12707
https://coinexchange.io/js/perfect-scrollbar.jquery.js
0
9465
https://coinexchange.io/js/jquery.color.js
0
5655
https://coinexchange.io/css/animate.css
0
5373
https://coinexchange.io/js/ion.sound.js
0
4677
https://coinexchange.io/js/jquery.filtertable.js
0
3973
https://coinexchange.io/css/main.css?v=4
0
3924
https://coinexchange.io/bundles/fosjsrouting/js/router.js
0
2298
https://coinexchange.io/css/perfect-scrollbar.css
0
1040
https://coinexchange.io/css/custom-light.css
0
375
https://www.google-analytics.com/analytics.js
7200000
20199
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://fonts.gstatic.com/s/lato/v17/S6uyw4BMUTPHjx4wXiWtFCc.woff2
68.527000024915
https://fonts.gstatic.com/s/roboto/v27/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
3.4239999949932
Reduce the impact of third-party code — Third-party code blocked the main thread for 610 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
20842
608.984
29832
0
691
0
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL Failing Elements
https://coinexchange.io/assets/images/logo_new_3.png
94

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of coinexchange.io. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Coinexchange.io may provide assistance to deaf or hearing-impaired users with captions on videos.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements

Internationalization and localization

`<html>` element does not have a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
Failing Elements

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
87

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that coinexchange.io should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Links to cross-origin destinations are safe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
Bootstrap
3.2.0
jQuery
1.11.1
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://coinexchange.io/
Allowed
Includes front-end JavaScript libraries with known security vulnerabilities — 9 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
5
Medium
4
Medium
92

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for coinexchange.io. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of coinexchange.io on mobile screens.
Document uses legible font sizes — 99.74% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
input, button, select, textarea
0.26%
11px
body
0.00%
11px
99.74%
≥ 12px
Tap targets are sized appropriately — 100% appropriately sized tap targets
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Content Best Practices

Document does not have a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
50

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of coinexchange.io. This includes details about web app manifests.

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of coinexchange.io on mobile screens.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 65.21.91.227
Continent: Europe
Country: Germany
Germany Flag
Region:
City:
Longitude: 9.491
Latitude: 51.2993
Currencies: EUR
Languages: German

Web Hosting Provider

Registration

Domain Registrant

Private Registration: No
Name:
Organization:
Country:
City:
State:
Post Code:
Email:
Phone:
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Name IP Address
NameCheap, Inc. 104.16.100.56
Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Safe
WOT Rating:
WOT Trustworthiness: 50/100
WOT Child Safety: 85/100
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Technical

DNS Lookup

HTTP Response Headers

Whois Lookup

Created: 1st September, 2016
Changed: 12th October, 2018
Expires: 1st September, 2023
Registrar: NAMECHEAP INC
Status: clientTransferProhibited
Nameservers: dns1.registrar-servers.com
dns2.registrar-servers.com
Owner Name: Withheld for Privacy Purposes
Owner Organization: Privacy service provided by Withheld for Privacy ehf
Owner Street: Kalkofnsvegur 2
Owner Post Code: 101
Owner City: Reykjavik
Owner State: Capital Region
Owner Country: IS
Owner Phone: +354.4212434
Owner Email: 428fb9ea20024fa794ca1698a2373f18.protect@withheldforprivacy.com
Admin Name: Withheld for Privacy Purposes
Admin Organization: Privacy service provided by Withheld for Privacy ehf
Admin Street: Kalkofnsvegur 2
Admin Post Code: 101
Admin City: Reykjavik
Admin State: Capital Region
Admin Country: IS
Admin Phone: +354.4212434
Admin Email: 428fb9ea20024fa794ca1698a2373f18.protect@withheldforprivacy.com
Tech Name: Withheld for Privacy Purposes
Tech Organization: Privacy service provided by Withheld for Privacy ehf
Tech Street: Kalkofnsvegur 2
Tech Post Code: 101
Tech City: Reykjavik
Tech State: Capital Region
Tech Country: IS
Tech Phone: +354.4212434
Tech Email: 428fb9ea20024fa794ca1698a2373f18.protect@withheldforprivacy.com
Full Whois: Domain name: coinexchange.io
Registry Domain ID: D503300000040477115-LRMS
Registrar WHOIS Server: whois.namecheap.com
Registrar URL: http://www.namecheap.com
Updated Date: 2018-12-10T11:12:36.73Z
Creation Date: 2016-01-09T00:12:00.00Z
Registrar Registration Expiration Date: 2023-01-09T00:12:00.00Z
Registrar: NAMECHEAP INC
Registrar IANA ID: 1068
Registrar Abuse Contact Email: abuse@namecheap.com
Registrar Abuse Contact Phone: +1.6613102107
Reseller: NAMECHEAP INC
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID:
Registrant Name: Withheld for Privacy Purposes
Registrant Organization: Privacy service provided by Withheld for Privacy ehf
Registrant Street: Kalkofnsvegur 2
Registrant City: Reykjavik
Registrant State/Province: Capital Region
Registrant Postal Code: 101
Registrant Country: IS
Registrant Phone: +354.4212434
Registrant Phone Ext:
Registrant Fax:
Registrant Fax Ext:
Registrant Email: 428fb9ea20024fa794ca1698a2373f18.protect@withheldforprivacy.com
Registry Admin ID:
Admin Name: Withheld for Privacy Purposes
Admin Organization: Privacy service provided by Withheld for Privacy ehf
Admin Street: Kalkofnsvegur 2
Admin City: Reykjavik
Admin State/Province: Capital Region
Admin Postal Code: 101
Admin Country: IS
Admin Phone: +354.4212434
Admin Phone Ext:
Admin Fax:
Admin Fax Ext:
Admin Email: 428fb9ea20024fa794ca1698a2373f18.protect@withheldforprivacy.com
Registry Tech ID:
Tech Name: Withheld for Privacy Purposes
Tech Organization: Privacy service provided by Withheld for Privacy ehf
Tech Street: Kalkofnsvegur 2
Tech City: Reykjavik
Tech State/Province: Capital Region
Tech Postal Code: 101
Tech Country: IS
Tech Phone: +354.4212434
Tech Phone Ext:
Tech Fax:
Tech Fax Ext:
Tech Email: 428fb9ea20024fa794ca1698a2373f18.protect@withheldforprivacy.com
Name Server: dns1.registrar-servers.com
Name Server: dns2.registrar-servers.com
DNSSEC: unsigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2021-05-25T03:12:18.91Z <<<
For more information on Whois status codes, please visit https://icann.org/epp

Nameservers

Name IP Address
dns1.registrar-servers.com 156.154.132.200
dns2.registrar-servers.com 156.154.133.200
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Domain Valuation Snoop Score
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$1,964 USD 1/5
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