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KERNEL.ORG The Linux Kernel Archives

kernel.org Website Information

Daily Unique Visits: 3,116,291

Daily Page Views: 24,930,328

Income Per Day: $24,930

Estimated Value: $26,924,400

This website is located in Netherlands and is using following IP address 139.178.84.217. See the complete list of popular websites hosted in Netherlands.

kernel.org is registered under .ORG top-level domain. Please check other sites in .ORG zone.

Website kernel.org is using the following name servers:

  • ns41.constellix.net
  • ns51.constellix.net
  • ns61.constellix.net
  • ns11.constellix.com
  • ns21.constellix.com
  • ns31.constellix.com

and is probably hosted by PACKET - Packet Host, Inc., US. See the full list of other websites hosted by PACKET - Packet Host, Inc., US.

The highest website kernel.org position in Alexa rank database was 474 and the lowest rank position was 516. Current position of kernel.org in Alexa rank database is 489.

Desktop speed score of kernel.org (82/100) is better than the results of 74.03% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of kernel.org (62/100) is better than the results of 7.29% of other sites and means that the page is not mobile-friendly.

Mobile speed score of kernel.org (64/100) is better than the results of 64.03% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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kernel.org 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.

kernel.org 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.

Domain Name: kernel.org
Registry Domain ID: fe82cf9a1e554567b9356a2b47856bd4-LROR
Registrar WHOIS Server: http://whois.gandi.net
Registrar URL: http://www.gandi.net
Updated Date: 2023-05-31T17:09:14Z
Creation Date: 1997-03-07T05:00:00Z
Registry Expiry Date: 2027-03-08T05:00:00Z
Registrar: Gandi SAS
Registrar IANA ID: 81
Registrar Abuse Contact Email: abuse@support.gandi.net
Registrar Abuse Contact Phone: +33.170377661
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: The Linux Foundation
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province:
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
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Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
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Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
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Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: ns11.constellix.com
Name Server: ns21.constellix.com
Name Server: ns31.constellix.com
Name Server: ns41.constellix.net
Name Server: ns51.constellix.net
Name Server: ns61.constellix.net
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2023-09-10T15:12:55Z

kernel.org server information

Servers Location

kernel.org desktop page speed rank

Last tested: 2019-12-06

Desktop Speed Medium
82/100

kernel.org Desktop Speed Test Quick Summary


priority - 9Avoid landing page redirects

Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://kernel.org/
https://kernel.org/
https://www.kernel.org/

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://www.kernel.org/theme/css/main.css (expiration not specified)
https://www.kernel.org/theme/css/normalize.css (expiration not specified)
https://www.kernel.org/theme/images/icons/downloadarrow_small.png (expiration not specified)
https://www.kernel.org/theme/images/logos/constellix-green-logo.png (expiration not specified)
https://www.kernel.org/theme/images/logos/fastly-logo.png (expiration not specified)
https://www.kernel.org/theme/images/logos/google.png (expiration not specified)
https://www.kernel.org/theme/images/logos/packet.png (expiration not specified)
https://www.kernel.org/theme/images/logos/purestorage.png (expiration not specified)
https://www.kernel.org/theme/images/logos/redhat-community.png (expiration not specified)
https://www.kernel.org/theme/images/logos/thelinuxfoundation.png (expiration not specified)
https://www.kernel.org/theme/images/logos/tux.png (expiration not specified)

priority - 4Eliminate render-blocking JavaScript and CSS in above-the-fold content

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

Optimize CSS Delivery of the following:

https://www.kernel.org/theme/css/main.css
https://www.kernel.org/theme/css/normalize.css

priority - 1Enable 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 9.5KiB (70% reduction).

Compressing https://www.kernel.org/theme/css/normalize.css could save 5.1KiB (70% reduction).
Compressing https://www.kernel.org/theme/css/main.css could save 4.4KiB (70% reduction).

priority - 1Minify 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 7KiB (51% reduction).

Minifying https://www.kernel.org/theme/css/normalize.css could save 5.3KiB (74% reduction).
Minifying https://www.kernel.org/theme/css/main.css could save 1.7KiB (27% reduction).

priority - 0Optimize images

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

Optimize the following images to reduce their size by 381B (12% reduction).

Compressing https://www.kernel.org/theme/images/logos/redhat-community.png could save 381B (12% reduction).

kernel.org Desktop Resource Breakdown

Total Resources16
Number of Hosts2
Static Resources11
CSS Resources2

kernel.org mobile page speed rank

Last tested: 2017-05-09

Mobile Speed Bad
64/100

kernel.org Mobile Speed Test Quick Summary


priority - 34Avoid landing page redirects

Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://kernel.org/
https://kernel.org/
https://www.kernel.org/

priority - 16Eliminate render-blocking JavaScript and CSS in above-the-fold content

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

Optimize CSS Delivery of the following:

https://www.kernel.org/theme/css/main.css
https://www.kernel.org/theme/css/normalize.css

priority - 7Leverage 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.kernel.org/theme/css/main.css (expiration not specified)
https://www.kernel.org/theme/css/normalize.css (expiration not specified)
https://www.kernel.org/theme/images/icons/downloadarrow_small.png (expiration not specified)
https://www.kernel.org/theme/images/logos/fastly-logo.png (expiration not specified)
https://www.kernel.org/theme/images/logos/google.png (expiration not specified)
https://www.kernel.org/theme/images/logos/packetnet.png (expiration not specified)
https://www.kernel.org/theme/images/logos/redhat-logo.png (expiration not specified)
https://www.kernel.org/theme/images/logos/thelinuxfoundation.png (expiration not specified)
https://www.kernel.org/theme/images/logos/tux.png (expiration not specified)

priority - 0Optimize images

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

Optimize the following images to reduce their size by 3.3KiB (19% reduction).

Compressing https://www.kernel.org/theme/images/logos/google.png could save 1,008B (25% reduction).
Compressing https://www.kernel.org/theme/images/logos/redhat-logo.png could save 895B (28% reduction).
Compressing https://www.kernel.org/theme/images/logos/tux.png could save 881B (11% reduction).
Compressing https://www.kernel.org/theme/images/logos/fastly-logo.png could save 607B (27% 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 1.3KiB (60% reduction).

Minifying https://www.kernel.org/theme/css/normalize.css could save 1.3KiB (60% reduction) after compression.

kernel.org Mobile Resource Breakdown

Total Resources14
Number of Hosts2
Static Resources9
CSS Resources2

kernel.org mobile page usability

Last tested: 2017-05-09

Mobile Usability Bad
62/100

kernel.org Mobile Usability Test Quick Summary


priority - 28Use 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.

Contact us and 5 others render only 6 pixels tall (16 CSS pixels).

Protocol and 1 others render only 6 pixels tall (16 CSS pixels).

https://www.kernel.org/pub/ and 4 others render only 6 pixels tall (16 CSS pixels).

rsync://rsync.kernel.org/pub/ renders only 6 pixels tall (16 CSS pixels).

Latest Stable Kernel: renders only 8 pixels tall (20 CSS pixels).

linux-next: and 175 others render only 6 pixels tall (16 CSS pixels).

next-20170509 and 12 others render only 6 pixels tall (16 CSS pixels).

inc. patch and 75 others render only 6 pixels tall (16 CSS pixels).

Kernel Mailing Lists and 11 others render only 6 pixels tall (16 CSS pixels).

This site is o…ation, Inc., a and 1 others render only 5 pixels tall (13 CSS pixels).

501(c)3 nonprofit corporation renders only 5 pixels tall (13 CSS pixels).

priority - 25Size 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="./category/contact-us.html">Contact us</a> and 4 others are close to other tap targets.

The tap target <a href="https://www.ie…fc/rfc2616.txt">HTTP</a> and 4 others are close to other tap targets.

The tap target <a href="https://cdn.ke…ux-4.11.tar.xz">tar.xz</a> and 75 others are close to other tap targets.

The tap target <a href="https://git.kernel.org/">Cgit</a> and 11 others are close to other tap targets.

The tap target <a href="./nonprofit.html">501(c)3 nonprofit corporation</a> is close to 1 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.

kernel.org HTML validation

Warnings

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

Line: 69 Column: 92 - 197
"...3.tar.xz"><img src="./theme/images/icons/downloadarrow_small.png" width="48" height="48" border="0" alt="Download"/></a> ..."

Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.

Line: 39 Column: 5 - 13
"...ody"> <article> ..."

Errors

The “align” attribute on the “tr” element is obsolete. Use CSS instead.

Line: 78 Column: 30 - 33
"...releases"> <tr align="left"> ..." Line: 90 Column: 14 - 33
"... </tr> <tr align="left"> ..." Line: 102 Column: 14 - 33
"... </tr> <tr align="left"> ..." Line: 114 Column: 14 - 33
"... </tr> <tr align="left"> ..." Line: 126 Column: 14 - 33
"... </tr> <tr align="left"> ..." Line: 138 Column: 14 - 33
"... </tr> <tr align="left"> ..." Line: 150 Column: 14 - 33
"... </tr> <tr align="left"> ..." Line: 162 Column: 14 - 33
"... </tr> <tr align="left"> ..." Line: 174 Column: 14 - 33
"... </tr> <tr align="left"> ..." Line: 186 Column: 14 - 33
"... </tr> <tr align="left"> ..." Line: 198 Column: 14 - 33
"... </tr> <tr align="left"> ..."

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kernel.org 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.

kernel.org 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.