AlexaWhoisServer InformationDesktop SpeedMobile SpeedMobile UsabilityHTML ErrorsPingTraceroute

JS.DO Online Javascript Editor

js.do Website Information

Daily Unique Visits: 779

Daily Page Views: 1,558

Income Per Day: $5

Estimated Value: $1,200

js.do is registered under .DO top-level domain. Please check other sites in .DO zone.

No name server records were found.

and is probably hosted by AMAZON-AES - Amazon.com, Inc., US. See the full list of other websites hosted by AMAZON-AES - Amazon.com, Inc., US.

The highest website js.do position in Alexa rank database was 744781 and the lowest rank position was 997784. Current position of js.do in Alexa rank database is 920809.

Desktop speed score of js.do (77/100) is better than the results of 63.93% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of js.do (59/100) is better than the results of 2.69% of other sites and means that the page is not mobile-friendly.

Mobile speed score of js.do (40/100) is better than the results of 18.97% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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js.do Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.

js.do whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.

js.do server information

Servers Location

js.do desktop page speed rank

Last tested: 2019-06-28

Desktop Speed Medium
77/100

js.do Desktop Speed Test Quick Summary


priority - 12Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 9 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://js.do/js/jquery.js
https://js.do/js/codemirror-5.45.0/lib/codemirror.js
https://js.do/default-source2.js?v=a5
https://js.do/js/dump.js
https://js.do/js/codemirror-5.45.0/mode/htmlmixed/htmlmixed.min.js
https://js.do/js/codemirror-5.45.0/mode/xml/xml.min.js
https://js.do/js/codemirror-5.45.0/mode/css/css.min.js
https://js.do/js/codemirror-5.45.0/mode/javascript/javascript.min.js
https://js.do/js/codemirror-5.45.0/addon/selection/active-line.min.js

Optimize CSS Delivery of the following:

https://js.do/bootstrap/css/bootstrap.css
https://js.do/bootstrap/css/bootstrap-responsive.css
https://js.do/js/codemirror-5.45.0/lib/codemirror.css

priority - 8Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 74.7KiB (40% reduction).

Minifying https://js.do/js/jquery.js could save 37KiB (48% reduction) after compression.
Minifying https://js.do/js/codemirror-5.45.0/lib/codemirror.js could save 34.3KiB (34% reduction) after compression.
Minifying https://js.do/default-source2.js?v=a5 could save 3KiB (37% reduction) after compression.
Minifying https://js.do/js/dump.js could save 448B (31% reduction) after compression.

priority - 6Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://js.do/bootstrap/css/bootstrap-responsive.css (expiration not specified)
https://js.do/bootstrap/css/bootstrap.css (expiration not specified)
https://js.do/bootstrap/img/glyphicons-halflings.png (expiration not specified)
https://js.do/js/codemirror-5.45.0/addon/selection/active-line.min.js (expiration not specified)
https://js.do/js/codemirror-5.45.0/lib/codemirror.css (expiration not specified)
https://js.do/js/codemirror-5.45.0/lib/codemirror.js (expiration not specified)
https://js.do/js/codemirror-5.45.0/mode/css/css.min.js (expiration not specified)
https://js.do/js/codemirror-5.45.0/mode/htmlmixed/htmlmixed.min.js (expiration not specified)
https://js.do/js/codemirror-5.45.0/mode/javascript/javascript.min.js (expiration not specified)
https://js.do/js/codemirror-5.45.0/mode/xml/xml.min.js (expiration not specified)
https://js.do/js/dump.js (expiration not specified)
https://js.do/js/jquery.js (expiration not specified)
https://ssl.google-analytics.com/ga.js (2 hours)

priority - 2Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 25% of the final above-the-fold content could be rendered with the full HTML response.
Click to see the screenshot with only the HTML response:

priority - 0Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 833B (49% reduction).

Compressing https://js.do/cgi-bin/js.pl?action=load_code&user_…_permalink=hello-world could save 833B (49% reduction).

priority - 0Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 830B (33% reduction).

Minifying https://js.do/js/codemirror-5.45.0/lib/codemirror.css could save 830B (33% reduction) after compression.

priority - 0Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 542B (13% reduction).

Minifying https://js.do/ could save 542B (13% reduction) after compression.

js.do Desktop Resource Breakdown

Total Resources18
Number of Hosts2
Static Resources13
JavaScript Resources11
CSS Resources3

js.do mobile page speed rank

Last tested: 2017-05-17

Mobile Speed Bad
40/100

js.do Mobile Speed Test Quick Summary


priority - 66Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 648.2KiB (74% reduction).

Compressing http://js.do/js/codemirror-5.10/lib/codemirror.js could save 252.3KiB (73% reduction).
Compressing http://js.do/js/jquery.js could save 182KiB (70% reduction).
Compressing http://js.do/bootstrap/css/bootstrap.css could save 101.7KiB (85% reduction).
Compressing http://js.do/js/codemirror-5.10/mode/css/css.js could save 27.2KiB (75% reduction).
Compressing http://js.do/js/codemirror-5.10/mode/javascript/javascript.js could save 20.6KiB (76% reduction).
Compressing http://js.do/default-source2.js?v=a1 could save 19.9KiB (70% reduction).
Compressing http://js.do/bootstrap/css/bootstrap-responsive.css could save 17.1KiB (80% reduction).
Compressing http://js.do/ could save 9.3KiB (70% reduction).
Compressing http://js.do/js/codemirror-5.10/mode/xml/xml.js could save 9.1KiB (75% reduction).
Compressing http://js.do/js/codemirror-5.10/lib/codemirror.css could save 5.4KiB (69% reduction).
Compressing http://js.do/js/dump.js could save 2.1KiB (60% reduction).
Compressing http://js.do/js/codemirror-5.10/addon/selection/active-line.js could save 1.5KiB (61% reduction).

priority - 48Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 8 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

http://js.do/js/jquery.js
http://js.do/js/codemirror-5.10/lib/codemirror.js
http://js.do/default-source2.js?v=a1
http://js.do/js/dump.js
http://js.do/js/codemirror-5.10/mode/xml/xml.js
http://js.do/js/codemirror-5.10/mode/css/css.js
http://js.do/js/codemirror-5.10/mode/javascript/javascript.js
http://js.do/js/codemirror-5.10/addon/selection/active-line.js

Optimize CSS Delivery of the following:

http://js.do/bootstrap/css/bootstrap.css
http://js.do/bootstrap/css/bootstrap-responsive.css
http://js.do/js/codemirror-5.10/lib/codemirror.css

priority - 28Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 270.6KiB (38% reduction).

Minifying http://js.do/js/codemirror-5.10/lib/codemirror.js could save 121.9KiB (36% reduction).
Minifying http://js.do/js/jquery.js could save 118.8KiB (46% reduction).
Minifying http://js.do/default-source2.js?v=a1 could save 10.9KiB (39% reduction).
Minifying http://js.do/js/codemirror-5.10/mode/css/css.js could save 6.7KiB (19% reduction).
Minifying http://js.do/js/codemirror-5.10/mode/javascript/javascript.js could save 6.6KiB (25% reduction).
Minifying http://js.do/js/codemirror-5.10/mode/xml/xml.js could save 3.5KiB (30% reduction).
Minifying http://js.do/js/dump.js could save 1.3KiB (37% reduction).
Minifying http://js.do/js/codemirror-5.10/addon/selection/active-line.js could save 854B (35% reduction).

priority - 10Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

http://js.do/bootstrap/css/bootstrap-responsive.css (expiration not specified)
http://js.do/bootstrap/css/bootstrap.css (expiration not specified)
http://js.do/bootstrap/img/glyphicons-halflings.png (expiration not specified)
http://js.do/js/codemirror-5.10/addon/selection/active-line.js (expiration not specified)
http://js.do/js/codemirror-5.10/lib/codemirror.css (expiration not specified)
http://js.do/js/codemirror-5.10/lib/codemirror.js (expiration not specified)
http://js.do/js/codemirror-5.10/mode/css/css.js (expiration not specified)
http://js.do/js/codemirror-5.10/mode/javascript/javascript.js (expiration not specified)
http://js.do/js/codemirror-5.10/mode/xml/xml.js (expiration not specified)
http://js.do/js/dump.js (expiration not specified)
http://js.do/js/jquery.js (expiration not specified)
https://apis.google.com/js/plusone.js (30 minutes)
https://apis.google.com/js/rpc:shindig_random.js?onload=init (30 minutes)
http://www.google-analytics.com/ga.js (2 hours)

priority - 8Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 44% of the final above-the-fold content could be rendered with the full HTML response.

priority - 2Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 21.7KiB (15% reduction).

Minifying http://js.do/bootstrap/css/bootstrap.css could save 14.9KiB (13% reduction).
Minifying http://js.do/bootstrap/css/bootstrap-responsive.css could save 4.6KiB (22% reduction).
Minifying http://js.do/js/codemirror-5.10/lib/codemirror.css could save 2.1KiB (28% reduction).

priority - 0Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 2.1KiB (16% reduction).

Minifying http://js.do/ could save 2.1KiB (16% reduction).

js.do Mobile Resource Breakdown

Total Resources26
Number of Hosts6
Static Resources20
JavaScript Resources17
CSS Resources3

js.do mobile page usability

Last tested: 2017-05-17

Mobile Usability Bad
59/100

js.do Mobile Usability Test Quick Summary


priority - 38Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

register and 5 others render only 5 pixels tall (14 CSS pixels).

(free!) and 4 others render only 5 pixels tall (14 CSS pixels).

"Edit your cod…ght and fast!" renders only 5 pixels tall (12 CSS pixels).

Code address: and 1 others render only 5 pixels tall (14 CSS pixels).

http://js.do/ and 1 others render only 5 pixels tall (14 CSS pixels).

Description: renders only 5 pixels tall (14 CSS pixels).

Load code samples and 3 others render only 5 pixels tall (12 CSS pixels).

JavaScript and 1 others render only 5 pixels tall (12 CSS pixels).

10 and 14 others render only 5 pixels tall (14 CSS pixels).

script and 25 others render only 5 pixels tall (14 CSS pixels).

line++) and 5 others render only 5 pixels tall (14 CSS pixels).

var s = (Math.…) ? "╱" : "╲"; and 12 others render only 5 pixels tall (14 CSS pixels).

"line-height:…amily: times;" renders only 5 pixels tall (14 CSS pixels).

<29;i++) { and 4 others render only 5 pixels tall (14 CSS pixels).

|| renders only 5 pixels tall (14 CSS pixels).

╱╲╱╱╲╲╱╱╱╲╱╱╲╱╱╲╲╲╲╱╲╱╱╱╱╲╲╱ and 61 others render only 7 pixels tall (18 CSS pixels).

Load samples renders only 7 pixels tall (18 CSS pixels).

+116   Recomme…this on Google renders only 4 pixels tall (11 CSS pixels).

priority - 27Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <a href="javascript:;" class="btn xbtn-info btn-small">Fullscreen</a> and 3 others are close to other tap targets.

The tap target <div class="CodeMirror-vscrollbar"></div> is close to 3 other tap targets.

The tap target <div class="CodeMirror-code">1&lt;p style=&quot;lin…ript&gt;14&lt;/p&gt;15​</div> and 29 others are close to other tap targets.

The tap target <div class="CodeMirror-activeline">1&lt;p style=&quot;lin…mily: times;&quot;&gt;</div> and 14 others are close to other tap targets.

The tap target <div class="CodeMirror-act…linebackground"> is close to 12 other tap targets.

The tap target <pre class="CodeMirror-line">&lt;p style=&quot;line…mily: times;&quot;&gt;</pre> and 14 others are close to other tap targets.

The tap target <span>&lt;p style=&quot;line…mily: times;&quot;&gt;</span> and 31 others are close to other tap targets.

The tap target <span class="cm-tag cm-bracket">&lt;</span> and 51 others are close to other tap targets.

The tap target <span class="cm-attribute">style</span> and 11 others are close to other tap targets.

The tap target <span class="cm-string">&quot;line-height:…amily: times;&quot;</span> and 1 others are close to other tap targets.

The tap target <span class="cm-tag cm-error">&lt;29;i++) {</span> and 9 others are close to other tap targets.

The tap target <div id="col_resize">||</div> is close to 4 other tap targets.

The tap target <a href="http://js.do/">js.do</a> and 3 others are close to other tap targets.

priority - 10Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

js.do HTML validation

Errors

End tag “h1” seen, but there were open elements.

Line: 77 Column: 1 - 5
"...pt Editor </h1> <i st..."

Unclosed element “span”.

Line: 76 Column: 44 - 74
"...do</span> <span style="font-size: 0.8em">Online..."

Row 1 of a row group established by a “tbody” element has no cells beginning on it.

Line: 97 Column: - 5
"...able> <tr> </tr> <tr> ..."

No space between attributes.

Line: 251 Column: - 103
"...ined.min.css">'cd>Bootstrap 2...."

Attribute “cd” not allowed on element “option” at this point.

Line: 251 Column: 1 - 105
".../option> <option value='<link rel="stylesheet" href="/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css">'cd>Bootst..."

Attribute “xonmouseover” not allowed on element “span” at this point.

Line: 303 Column: 2 - 126
"...: 1em; " ><span class="label top_label" id="label_javascript" xonMouseOver="reposition_label_on_scroll('js_code', 'label_javascript')">JavaSc..."

Stray end tag “div”.

Line: 482 Column: 1 - 6
"...></div> </div> </foo..."

Warnings

A table row was 4 columns wide and exceeded the column count established by the first row (0).

Line: 106 Column: 69 - 5
"...tle"></td> </tr> </tab..."

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js.do Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.

js.do TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.