stackoverflow.com

Stack Overflow

How popular is stackoverflow.com?

This table shows the popularity of stackoverflow.com relative to ther sites.
DateAlexa RankChange
Aug-17-2018 57-3
Aug-16-2018 54-1
Aug-15-2018 5327
Aug-14-2018 801
Aug-13-2018 81-21
Aug-12-2018 60-7
Aug-11-2018 53-1

stackoverflow.com alexa rank history


What does Alexa Rank mean?
Alexa rank is calculated using a combination of the estimated average daily unique visitors to the site and the estimated number of pageviews on the site. The site with the highest combination of unique visitors and pageviews is ranked as #1

Compare stackoverflow.com alexa rank with other website rank

stackoverflow.com

stackoverflow.com whois

Domain Name: STACKOVERFLOW.COM
Registry Domain ID: 108907621_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.name.com
Registrar URL: http://www.name.com
Updated Date: 2015-11-26T17:58:30Z
Creation Date: 2003-12-26T19:18:07Z
Registrar Registration Expiration Date: 2016-12-26T19:18:07Z
Registrar: Name.com, Inc.
Registrar IANA ID: 625
Reseller:
Domain Status: clientTransferProhibited
Registry Registrant ID:
Registrant Name: Sysadmin Team
Registrant Organization: Stack Exchange, Inc.
Registrant Street: 110 William St , Floor 28
Registrant City: New York
Registrant State/Province: NY
Registrant Postal Code: 10038
Registrant Country: US
Registrant Phone: +1.2122328280
Registrant Email: sysadmin-team@stackoverflow.com
Registry Admin ID:
Admin Name: Sysadmin Team
Admin Organization: Stack Exchange, Inc.
Admin Street: 110 William St , Floor 28
Admin City: New York
Admin State/Province: NY
Admin Postal Code: 10038
Admin Country: US
Admin Phone: +1.2122328280
Admin Email: sysadmin-team@stackoverflow.com
Registry Tech ID:
Tech Name: Sysadmin Team
Tech Organization: Stack Exchange, Inc.
Tech Street: 110 William St , Floor 28
Tech City: New York
Tech State/Province: NY
Tech Postal Code: 10038
Tech Country: US
Tech Phone: +1.2122328280
Tech Email: sysadmin-team@stackoverflow.com
Name Server: cf-dns02.stackoverflow.com
Name Server: cf-dns01.stackoverflow.com
DNSSEC: Unsigned Delegation
Registrar Abuse Contact Email: abuse@name.com
Registrar Abuse Contact Phone: +1.1 7203101849
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2016-04-15T10:00:35-06:00

stackoverflow.com server information

stackoverflow.com desktop page speed rank

Site Title: Stack Overflow


Stackoverflow.com Desktop Speed: 82/100

Stackoverflow.com Desktop Speed Test Quick Summary:

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

Your page has 2 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.


None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.


Remove render-blocking JavaScript:

http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js
http://cdn.sstatic.net/Js/stub.en.js?v=f1b75fae2d6c

Optimize CSS Delivery of the following:

http://cdn.sstatic.net/Sites/stackoverflow/all.css?v=2ef2a82ae918
http://static.adzerk.net/Extensions/adFeedback.css

6 Enable 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 53.3KiB (67% reduction).

Compressing http://cdn.sstatic.net/img/share-sprite-new.svg?v=78be252218f3 could save 24.1KiB (70% reduction).
Compressing http://cdn.sstatic.net/Js/stub.en.js?v=f1b75fae2d6c could save 23.5KiB (65% reduction).
Compressing http://cdn.sstatic.net/Sites/stackoverflow/img/sprites.svg?v=8c1c8cba242e could save 5.1KiB (64% reduction).
Compressing http://cdn.sstatic.net/clc/img/jobs/ico-visa-pink.svg?v=15ac224853d9 could save 544B (44% reduction).

2 Prioritize 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 64% of the final above-the-fold content could be rendered with the full HTML response.

2 Optimize images

Properly formatting and compressing images can save many bytes of data.


Optimize the following images to reduce their size by 16KiB (24% reduction).

Losslessly compressing http://cdn.sstatic.net/img/favicons-sprite16.png?v=fc0e36c9a3a2 could save 11KiB (18% reduction).
Losslessly compressing http://i.stack.imgur.com/vobok.png could save 2.6KiB (76% reduction).
Losslessly compressing http://i.stack.imgur.com/EdUwb.png could save 2.4KiB (67% reduction).

1 Leverage 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://www.google-analytics.com/analytics.js (2 hours)

1 Minify 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 684B (34% reduction).

Minifying http://static.adzerk.net/Extensions/adFeedback.js could save 684B (34% reduction) after compression.

Stackoverflow.com Desktop Resources

Total Resources37
Number of Hosts12
Static Resources25
JavaScript Resources10
CSS Resources3

Stackoverflow.com Desktop Resource Distribution

stackoverflow.com mobile page speed rank

Site Title: Stack Overflow


Stackoverflow.com Mobile Speed: 73/100

Stackoverflow.com Mobile Speed Test Quick Summary:

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

Your page has 3 blocking script resources and 1 blocking CSS resources. This causes a delay in rendering your page.


None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.


Remove render-blocking JavaScript:

http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js
http://cdn.sstatic.net/Js/stub.en.js?v=f1b75fae2d6c
http://cdn.sstatic.net/Js/mobile.en.js?v=3199d1e28733

Optimize CSS Delivery of the following:

http://cdn.sstatic.net/Sites/stackoverflow/mobile.css?v=4689877067de

4 Enable 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 29.7KiB (64% reduction).

Compressing http://cdn.sstatic.net/Js/stub.en.js?v=f1b75fae2d6c could save 23.5KiB (65% reduction).
Compressing http://cdn.sstatic.net/Js/mobile.en.js?v=3199d1e28733 could save 6.2KiB (63% reduction).

1 Leverage 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://www.google-analytics.com/analytics.js (2 hours)

1 Optimize images

Properly formatting and compressing images can save many bytes of data.


Optimize the following images to reduce their size by 2.9KiB (21% reduction).

Losslessly compressing http://cdn.sstatic.net/img/share-sprite-new.png?v=e1b8bd67bc12 could save 2.9KiB (21% reduction).

Stackoverflow.com Mobile Resources

Total Resources14
Number of Hosts7
Static Resources9
JavaScript Resources7
CSS Resources1

Stackoverflow.com Mobile Resource Distribution

stackoverflow.com mobile page usability

Site Title: Stack Overflow


Stackoverflow.com Mobile Usability: 80/100

Stackoverflow.com Mobile Usability Test Quick Summary:

23 Size 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="/questions/ask">Ask</a> is close to 1 other tap targets.
The tap target <a href="/questions/tagged/python" class="post-tag">python</a> and 318 others are close to other tap targets.
The tap target <a href="/questions/377…s?lastactivity">37 secs ago</a> and 95 others are close to other tap targets.
The tap target <a href="/questions/377…s?lastactivity">37 secs ago</a> and 179 others are close to other tap targets.
The tap target <a href="/questions/377…ata-in-node-js" class="question-hyperlink">using request data in node js</a> and 26 others are close to other tap targets.
The tap target <a href="/tour">tour</a> and 5 others are close to other tap targets.
The tap target <a href="https://play.g…xchange.marvin" class="android-mobile-ad">Download the S…ge Android app</a> is close to 1 other tap targets.

Stackoverflow.com Mobile Resources

Total Resources14
Number of Hosts7
Static Resources9
JavaScript Resources7
CSS Resources1

Stackoverflow.com Mobile Resource Distribution

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