AlexaWhoisServer InformationDesktop SpeedMobile SpeedMobile UsabilityHTML ErrorsPingTraceroute

XEN.ORG Home - Xen Project

xen.org Website Information

Daily Unique Visits: 41,261

Daily Page Views: 247,566

Income Per Day: $495

Estimated Value: $356,400

This website is located in United States and is using following IP address 104.130.215.37. See the complete list of popular websites hosted in United States.

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

Website xen.org is using the following name servers:

  • ns6.dnsmadeeasy.com
  • ns5.dnsmadeeasy.com
  • master.ns.xen.org
  • ns7.dnsmadeeasy.com

and is probably hosted by RACKSPACE - Rackspace Hosting, US. See the full list of other websites hosted by RACKSPACE - Rackspace Hosting, US.

The highest website xen.org position in Alexa rank database was 32970 and the lowest rank position was 998819. Current position of xen.org in Alexa rank database is 34760.

Desktop speed score of xen.org (40/100) is better than the results of 14.88% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of xen.org (95/100) is better than the results of 39.69% of other sites and means that the page is mobile-friendly.

Mobile speed score of xen.org (34/100) is better than the results of 12.98% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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xen.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.

xen.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: xen.org
Registry Domain ID: 24cfb293ecd948d78fef7792b76af7f1-LROR
Registrar WHOIS Server: http://whois.cscglobal.com
Registrar URL: http://www.cscglobal.com/global/web/csc/digital-brand
Updated Date: 2024-05-19T05:14:50Z
Creation Date: 2000-05-18T10:51:04Z
Registry Expiry Date: 2026-05-18T10:51:04Z
Registrar: CSC Corporate Domains, Inc.
Registrar IANA ID: 299
Registrar Abuse Contact Email: domainabuse@cscglobal.com
Registrar Abuse Contact Phone: +1.8887802723
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Citrix Systems Inc
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: FL
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
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.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
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
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
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: master.ns.xen.org
Name Server: ns5.dnsmadeeasy.com
Name Server: ns6.dnsmadeeasy.com
Name Server: ns7.dnsmadeeasy.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-09-27T08:16:58Z

xen.org server information

Servers Location

xen.org desktop page speed rank

Last tested: 2018-01-18

Desktop Speed Bad
40/100

xen.org Desktop Speed Test Quick Summary


priority - 67Optimize images

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

Optimize the following images to reduce their size by 653.7KiB (81% reduction).

Compressing and resizing https://www.xenproject.org/images/modules/thumbnails/xpdds17.png could save 578KiB (97% reduction).
Compressing https://www.xenproject.org/templates/xen/images/slideshow/slideshow-bg.jpg could save 29.7KiB (32% reduction).
Compressing https://www.xenproject.org/templates/xen/images/lfcp_green_footer.jpg could save 13.6KiB (37% reduction).
Compressing https://www.xenproject.org/templates/xen/images/lfcp_header_green.png could save 2.6KiB (40% reduction).
Compressing http://img.youtube.com/vi/jZNXtqFJpuc/default.jpg could save 2.5KiB (53% reduction).
Compressing https://www.xenproject.org/templates/xen/images/linux-foundation.png could save 2.5KiB (47% reduction).
Compressing https://www.xenproject.org/images/icons/chair.png could save 1.2KiB (41% reduction).
Compressing https://www.xenproject.org/templates/xen/images/slideshow/next.png could save 1.1KiB (35% reduction).
Compressing https://www.xenproject.org/templates/xen/images/slideshow/prev.png could save 1.1KiB (35% reduction).
Compressing https://www.xenproject.org/images/modules/logo/xen-logo.png could save 1KiB (12% reduction).
Compressing https://www.xenproject.org/templates/xen/images/br…adcrumbs-separator.png could save 1,013B (65% reduction).
Compressing https://www.xenproject.org/templates/xen/images/breadcrumbs/home-link.png could save 969B (65% reduction).
Compressing https://www.xenproject.org/templates/xen/images/dropdown/level1-arrow.png could save 965B (75% reduction).
Compressing https://www.xenproject.org/templates/xen/images/footer/website-icon.png could save 907B (64% reduction).
Compressing https://www.xenproject.org/templates/xen/images/so…nu/googleplus-icon.png could save 906B (63% reduction).
Compressing https://www.xenproject.org/templates/xen/images/login/login-arrow.png could save 901B (81% reduction).
Compressing https://www.xenproject.org/templates/xen/images/footer/resources-icon.png could save 898B (83% reduction).
Compressing https://www.xenproject.org/templates/xen/images/so…menu/facebook-icon.png could save 893B (72% reduction).
Compressing https://www.xenproject.org/templates/xen/images/socialmenu/vimeo-icon.png could save 889B (74% reduction).
Compressing https://www.xenproject.org/templates/xen/images/footer/connect-icon.png could save 884B (81% reduction).
Compressing https://www.xenproject.org/templates/xen/images/socialmenu/twitter-icon.png could save 882B (72% reduction).
Compressing https://www.xenproject.org/templates/xen/images/so…nu/slideshare-icon.png could save 881B (57% reduction).
Compressing http://img.youtube.com/vi/sjQnAIJji4k/default.jpg could save 879B (19% reduction).
Compressing https://www.xenproject.org/templates/xen/images/footer/aboutxen-icon.png could save 876B (78% reduction).
Compressing https://www.xenproject.org/templates/xen/images/main-title-bg3.png could save 870B (83% reduction).
Compressing https://www.xenproject.org/templates/xen/images/so…menu/linkedin-icon.png could save 862B (66% reduction).
Compressing https://www.xenproject.org/templates/xen/images/background/bg.png could save 860B (91% reduction).
Compressing https://www.xenproject.org/templates/xen/images/search/search-icon.png could save 854B (51% reduction).
Compressing https://www.xenproject.org/templates/xen/images/main-title-bg.png could save 836B (87% reduction).
Compressing https://www.xenproject.org/templates/xen/images/footer/footer-separator.png could save 747B (75% reduction).
Compressing https://www.xenproject.org/templates/xen/images/main-title-bg2.png could save 724B (55% reduction).
Compressing https://www.xenproject.org/templates/xen/images/dr…dropdown-separator.png could save 659B (64% reduction).
Compressing https://www.xenproject.org/templates/xen/images/blog/blog-post-readmore.png could save 470B (36% reduction).
Compressing https://www.xenproject.org/templates/xen/images/buttons/left2-btn.png could save 439B (22% reduction).
Compressing https://www.xenproject.org/templates/xen/images/buttons/right2-btn.png could save 387B (14% reduction).
Compressing https://www.xenproject.org/templates/xen/images/buttons/left-btn.png could save 312B (15% reduction).

priority - 45Leverage 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.xenproject.org/components/com_allvideoshare/assets/play.png (expiration not specified)
https://www.xenproject.org/components/com_allvideo…/css/allvideoshare.css (expiration not specified)
https://www.xenproject.org/components/com_allvideo…llvideoshareupdate.css (expiration not specified)
https://www.xenproject.org/components/com_roksprocket/assets/js/moofx.js (expiration not specified)
https://www.xenproject.org/components/com_roksproc…/js/mootools-mobile.js (expiration not specified)
https://www.xenproject.org/components/com_roksproc…/js/rokmediaqueries.js (expiration not specified)
https://www.xenproject.org/components/com_roksproc…sets/js/roksprocket.js (expiration not specified)
https://www.xenproject.org/components/com_roksproc…/assets/js/features.js (expiration not specified)
https://www.xenproject.org/components/com_roksproc…/showcase/showcase.css (expiration not specified)
https://www.xenproject.org/components/com_roksproc…s/showcase/showcase.js (expiration not specified)
https://www.xenproject.org/images/icons/chair.png (expiration not specified)
https://www.xenproject.org/images/modules/logo/xen-logo.png (expiration not specified)
https://www.xenproject.org/images/modules/slideshow/slide1/kungfupanda.png (expiration not specified)
https://www.xenproject.org/images/modules/slidesho…e19/xpdds17-banner.png (expiration not specified)
https://www.xenproject.org/images/modules/slideshow/slide2/panda2.png (expiration not specified)
https://www.xenproject.org/images/modules/slideshow/slide2/pandasecure.png (expiration not specified)
https://www.xenproject.org/images/modules/thumbnails/xpdds17.png (expiration not specified)
https://www.xenproject.org/images/templates/xen/download-button-logo.png (expiration not specified)
https://www.xenproject.org/media/system/js/caption.js (expiration not specified)
https://www.xenproject.org/media/system/js/core.js (expiration not specified)
https://www.xenproject.org/media/system/js/mootools-core.js (expiration not specified)
https://www.xenproject.org/modules/mod_jomsocial_e…ed_16/styles/style.css (expiration not specified)
https://www.xenproject.org/plugins/system/azrul.sy…ludes/ajax_1.5.pack.js (expiration not specified)
https://www.xenproject.org/templates/xen/css/base.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/custom.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/extensions.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/font2/arial.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/font3/arial.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/layout.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/menus.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/modules.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/print.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/responsive.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/style.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/system-all.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/system.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/tools.css (expiration not specified)
https://www.xenproject.org/templates/xen/images/background/bg.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/blog/blog-post-readmore.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/br…adcrumbs-separator.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/breadcrumbs/home-link.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/buttons/left-btn.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/buttons/left2-btn.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/buttons/right-btn.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/buttons/right2-btn.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/dr…dropdown-separator.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/dropdown/level1-arrow.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/footer/aboutxen-icon.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/footer/connect-icon.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/footer/footer-separator.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/footer/resources-icon.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/footer/website-icon.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/lfcp_green_footer.jpg (expiration not specified)
https://www.xenproject.org/templates/xen/images/lfcp_header_green.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/linux-foundation.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/login/login-arrow.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/main-title-bg.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/main-title-bg2.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/main-title-bg3.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/search/search-icon.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/slideshow/next.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/slideshow/prev.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/slideshow/slideshow-bg.jpg (expiration not specified)
https://www.xenproject.org/templates/xen/images/so…menu/facebook-icon.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/so…nu/googleplus-icon.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/so…menu/linkedin-icon.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/so…nu/slideshare-icon.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/socialmenu/twitter-icon.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/socialmenu/vimeo-icon.png (expiration not specified)
https://www.xenproject.org/templates/xen/js/plugins.js (expiration not specified)
https://www.xenproject.org/templates/xen/js/template.js (expiration not specified)
https://www.xenproject.org/templates/xen/warp/css/base.css (expiration not specified)
https://www.xenproject.org/templates/xen/warp/css/layout.css (expiration not specified)
https://www.xenproject.org/templates/xen/warp/css/menus.css (expiration not specified)
https://www.xenproject.org/templates/xen/warp/css/modules.css (expiration not specified)
https://www.xenproject.org/templates/xen/warp/css/print.css (expiration not specified)
https://www.xenproject.org/templates/xen/warp/css/responsive.css (expiration not specified)
https://www.xenproject.org/templates/xen/warp/css/system.css (expiration not specified)
https://www.xenproject.org/templates/xen/warp/css/tools.css (expiration not specified)
https://www.xenproject.org/templates/xen/warp/js/accordionmenu.js (expiration not specified)
https://www.xenproject.org/templates/xen/warp/js/dropdownmenu.js (expiration not specified)
https://www.xenproject.org/templates/xen/warp/js/responsive.js (expiration not specified)
https://www.xenproject.org/templates/xen/warp/js/search.js (expiration not specified)
https://www.xenproject.org/templates/xen/warp/js/warp.js (expiration not specified)
https://www.xenproject.org/templates/xen/warp/libraries/jquery/jquery.js (expiration not specified)
https://www.xenproject.org/templates/xen/warp/systems/joomla/css/system.css (expiration not specified)
https://m.addthisedge.com/live/boost/ra-512f2aff6e…_ate.track.config_resp (60 seconds)
https://s7.addthis.com/js/300/addthis_widget.js (10 minutes)
http://img.youtube.com/vi/jZNXtqFJpuc/default.jpg (2 hours)
http://img.youtube.com/vi/sjQnAIJji4k/default.jpg (2 hours)
https://ssl.google-analytics.com/ga.js (2 hours)

priority - 29Reduce server response time

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

Your page has 18 blocking script resources and 28 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.xenproject.org/media/system/js/mootools-core.js
https://www.xenproject.org/media/system/js/core.js
https://www.xenproject.org/media/system/js/caption.js
https://www.xenproject.org/templates/xen/warp/libraries/jquery/jquery.js
https://www.xenproject.org/components/com_roksproc…/js/mootools-mobile.js
https://www.xenproject.org/components/com_roksproc…/js/rokmediaqueries.js
https://www.xenproject.org/components/com_roksproc…sets/js/roksprocket.js
https://www.xenproject.org/components/com_roksprocket/assets/js/moofx.js
https://www.xenproject.org/components/com_roksproc…/assets/js/features.js
https://www.xenproject.org/components/com_roksproc…s/showcase/showcase.js
https://www.xenproject.org/plugins/system/azrul.sy…ludes/ajax_1.5.pack.js
https://www.xenproject.org/templates/xen/warp/js/warp.js
https://www.xenproject.org/templates/xen/warp/js/responsive.js
https://www.xenproject.org/templates/xen/warp/js/accordionmenu.js
https://www.xenproject.org/templates/xen/warp/js/dropdownmenu.js
https://www.xenproject.org/templates/xen/js/plugins.js
https://www.xenproject.org/templates/xen/js/template.js
https://www.xenproject.org/templates/xen/warp/js/search.js

Optimize CSS Delivery of the following:

https://www.xenproject.org/components/com_roksproc…/showcase/showcase.css
https://www.xenproject.org/components/com_allvideo…/css/allvideoshare.css
https://www.xenproject.org/components/com_allvideo…llvideoshareupdate.css
https://www.xenproject.org/components/com_allvideo…oshare.css?r=348253715
https://www.xenproject.org/templates/xen/css/base.css
https://www.xenproject.org/templates/xen/warp/css/base.css
https://www.xenproject.org/templates/xen/css/layout.css
https://www.xenproject.org/templates/xen/warp/css/layout.css
https://www.xenproject.org/templates/xen/css/menus.css
https://www.xenproject.org/templates/xen/warp/css/menus.css
https://www.xenproject.org/templates/xen/css/modules.css
https://www.xenproject.org/templates/xen/warp/css/modules.css
https://www.xenproject.org/templates/xen/css/tools.css
https://www.xenproject.org/templates/xen/warp/css/tools.css
https://www.xenproject.org/templates/xen/css/system.css
https://www.xenproject.org/templates/xen/warp/css/system.css
https://www.xenproject.org/templates/xen/warp/systems/joomla/css/system.css
https://www.xenproject.org/templates/xen/css/system-all.css
https://www.xenproject.org/templates/xen/css/extensions.css
https://www.xenproject.org/templates/xen/css/custom.css
https://www.xenproject.org/templates/xen/css/font2/arial.css
https://www.xenproject.org/templates/xen/css/font3/arial.css
https://www.xenproject.org/templates/xen/css/style.css
https://www.xenproject.org/templates/xen/css/responsive.css
https://www.xenproject.org/templates/xen/warp/css/responsive.css
https://www.xenproject.org/templates/xen/css/print.css
https://www.xenproject.org/templates/xen/warp/css/print.css
https://fonts.googleapis.com/css?family=Lato:400,700

priority - 7Avoid 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://xen.org/
http://www.xenproject.org/
https://www.xenproject.org/

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 7.1KiB (26% reduction).

Minifying https://www.xenproject.org/templates/xen/css/style.css could save 1.4KiB (16% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/warp/css/base.css could save 758B (45% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/warp/css/tools.css could save 558B (38% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/warp/css/system.css could save 427B (24% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/warp/css/menus.css could save 389B (36% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/warp/css/responsive.css could save 370B (39% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/warp/systems/joomla/css/system.css could save 319B (25% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/css/tools.css could save 315B (32% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/warp/css/layout.css could save 305B (37% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/css/system-all.css could save 248B (26% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/css/responsive.css could save 245B (18% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/css/menus.css could save 227B (32% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/warp/css/modules.css could save 202B (44% reduction) after compression.
Minifying https://www.xenproject.org/components/com_roksproc…/showcase/showcase.css could save 198B (24% reduction) after compression.
Minifying https://www.xenproject.org/components/com_allvideo…llvideoshareupdate.css could save 189B (23% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/warp/css/print.css could save 157B (37% reduction) after compression.
Minifying https://www.xenproject.org/components/com_allvideo…/css/allvideoshare.css could save 152B (29% reduction) after compression.
Minifying https://www.xenproject.org/components/com_allvideo…oshare.css?r=348253715 could save 152B (29% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/css/system.css could save 141B (32% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/css/modules.css could save 138B (32% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/css/base.css could save 117B (34% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/css/custom.css could save 117B (52% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/css/layout.css could save 113B (31% reduction) after compression.

priority - 0Minify 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 1.3KiB (16% reduction).

Minifying https://www.xenproject.org/components/com_roksproc…/assets/js/features.js could save 433B (17% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/js/template.js could save 251B (22% reduction) after compression.
Minifying https://www.xenproject.org/components/com_roksproc…/js/rokmediaqueries.js could save 189B (15% reduction) after compression.
Minifying https://www.xenproject.org/components/com_roksproc…/js/mootools-mobile.js could save 170B (11% reduction) after compression.
Minifying https://www.xenproject.org/components/com_roksproc…sets/js/roksprocket.js could save 169B (31% reduction) after compression.
Minifying https://www.xenproject.org/components/com_roksproc…s/showcase/showcase.js could save 101B (12% reduction) after compression.

xen.org Desktop Resource Breakdown

Total Resources110
Number of Hosts11
Static Resources94
JavaScript Resources30
CSS Resources29

xen.org mobile page speed rank

Last tested: 2017-05-22

Mobile Speed Bad
34/100

xen.org Mobile Speed Test Quick Summary


priority - 64Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 19 blocking script resources and 28 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.xenproject.org/media/system/js/mootools-core.js
https://www.xenproject.org/media/system/js/core.js
https://www.xenproject.org/media/system/js/caption.js
https://www.xenproject.org/templates/xen/warp/libraries/jquery/jquery.js
https://www.xenproject.org/components/com_roksproc…/js/mootools-mobile.js
https://www.xenproject.org/components/com_roksproc…/js/rokmediaqueries.js
https://www.xenproject.org/components/com_roksproc…sets/js/roksprocket.js
https://www.xenproject.org/components/com_roksprocket/assets/js/moofx.js
https://www.xenproject.org/components/com_roksproc…/assets/js/features.js
https://www.xenproject.org/components/com_roksproc…s/showcase/showcase.js
https://s7.addthis.com/js/300/addthis_widget.js
https://www.xenproject.org/plugins/system/azrul.sy…ludes/ajax_1.5.pack.js
https://www.xenproject.org/templates/xen/warp/js/warp.js
https://www.xenproject.org/templates/xen/warp/js/responsive.js
https://www.xenproject.org/templates/xen/warp/js/accordionmenu.js
https://www.xenproject.org/templates/xen/warp/js/dropdownmenu.js
https://www.xenproject.org/templates/xen/js/plugins.js
https://www.xenproject.org/templates/xen/js/template.js
https://www.xenproject.org/templates/xen/warp/js/search.js

Optimize CSS Delivery of the following:

https://www.xenproject.org/components/com_roksproc…/showcase/showcase.css
https://www.xenproject.org/components/com_allvideo…/css/allvideoshare.css
https://www.xenproject.org/components/com_allvideo…llvideoshareupdate.css
https://www.xenproject.org/components/com_allvideo…oshare.css?r=908825320
https://www.xenproject.org/templates/xen/css/base.css
https://www.xenproject.org/templates/xen/warp/css/base.css
https://www.xenproject.org/templates/xen/css/layout.css
https://www.xenproject.org/templates/xen/warp/css/layout.css
https://www.xenproject.org/templates/xen/css/menus.css
https://www.xenproject.org/templates/xen/warp/css/menus.css
https://www.xenproject.org/templates/xen/css/modules.css
https://www.xenproject.org/templates/xen/warp/css/modules.css
https://www.xenproject.org/templates/xen/css/tools.css
https://www.xenproject.org/templates/xen/warp/css/tools.css
https://www.xenproject.org/templates/xen/css/system.css
https://www.xenproject.org/templates/xen/warp/css/system.css
https://www.xenproject.org/templates/xen/warp/systems/joomla/css/system.css
https://www.xenproject.org/templates/xen/css/system-all.css
https://www.xenproject.org/templates/xen/css/extensions.css
https://www.xenproject.org/templates/xen/css/custom.css
https://www.xenproject.org/templates/xen/css/font2/arial.css
https://www.xenproject.org/templates/xen/css/font3/arial.css
https://www.xenproject.org/templates/xen/css/style.css
https://www.xenproject.org/templates/xen/css/responsive.css
https://www.xenproject.org/templates/xen/warp/css/responsive.css
https://www.xenproject.org/templates/xen/css/print.css
https://www.xenproject.org/templates/xen/warp/css/print.css
https://fonts.googleapis.com/css?family=Lato:400,700

priority - 59Leverage 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.xenproject.org/components/com_allvideoshare/assets/play.png (expiration not specified)
https://www.xenproject.org/components/com_allvideo…/css/allvideoshare.css (expiration not specified)
https://www.xenproject.org/components/com_allvideo…llvideoshareupdate.css (expiration not specified)
https://www.xenproject.org/components/com_roksprocket/assets/js/moofx.js (expiration not specified)
https://www.xenproject.org/components/com_roksproc…/js/mootools-mobile.js (expiration not specified)
https://www.xenproject.org/components/com_roksproc…/js/rokmediaqueries.js (expiration not specified)
https://www.xenproject.org/components/com_roksproc…sets/js/roksprocket.js (expiration not specified)
https://www.xenproject.org/components/com_roksproc…/assets/js/features.js (expiration not specified)
https://www.xenproject.org/components/com_roksproc…/showcase/showcase.css (expiration not specified)
https://www.xenproject.org/components/com_roksproc…s/showcase/showcase.js (expiration not specified)
https://www.xenproject.org/images/icons/chair.png (expiration not specified)
https://www.xenproject.org/images/modules/logo/xen-logo.png (expiration not specified)
https://www.xenproject.org/images/modules/slideshow/slide1/kungfupanda.png (expiration not specified)
https://www.xenproject.org/images/modules/slidesho…e19/xpdds17-banner.png (expiration not specified)
https://www.xenproject.org/images/modules/slideshow/slide2/panda2.png (expiration not specified)
https://www.xenproject.org/images/modules/slideshow/slide2/pandasecure.png (expiration not specified)
https://www.xenproject.org/images/templates/xen/download-button-logo.png (expiration not specified)
https://www.xenproject.org/media/system/js/caption.js (expiration not specified)
https://www.xenproject.org/media/system/js/core.js (expiration not specified)
https://www.xenproject.org/media/system/js/mootools-core.js (expiration not specified)
https://www.xenproject.org/modules/mod_jomsocial_e…ed_16/styles/style.css (expiration not specified)
https://www.xenproject.org/plugins/system/azrul.sy…ludes/ajax_1.5.pack.js (expiration not specified)
https://www.xenproject.org/templates/xen/css/base.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/custom.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/extensions.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/font2/arial.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/font3/arial.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/layout.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/menus.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/modules.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/print.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/responsive.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/style.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/system-all.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/system.css (expiration not specified)
https://www.xenproject.org/templates/xen/css/tools.css (expiration not specified)
https://www.xenproject.org/templates/xen/images/background/bg.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/blog/blog-post-readmore.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/buttons/left-btn.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/buttons/right-btn.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/footer/aboutxen-icon.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/footer/connect-icon.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/footer/resources-icon.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/footer/website-icon.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/lfcp_green_footer.jpg (expiration not specified)
https://www.xenproject.org/templates/xen/images/lfcp_header_green.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/linux-foundation.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/login/login-arrow.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/main-title-bg.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/main-title-bg2.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/main-title-bg3.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/search/search-icon.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/slideshow/next.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/slideshow/prev.png (expiration not specified)
https://www.xenproject.org/templates/xen/images/slideshow/slideshow-bg.jpg (expiration not specified)
https://www.xenproject.org/templates/xen/js/plugins.js (expiration not specified)
https://www.xenproject.org/templates/xen/js/template.js (expiration not specified)
https://www.xenproject.org/templates/xen/warp/css/base.css (expiration not specified)
https://www.xenproject.org/templates/xen/warp/css/layout.css (expiration not specified)
https://www.xenproject.org/templates/xen/warp/css/menus.css (expiration not specified)
https://www.xenproject.org/templates/xen/warp/css/modules.css (expiration not specified)
https://www.xenproject.org/templates/xen/warp/css/print.css (expiration not specified)
https://www.xenproject.org/templates/xen/warp/css/responsive.css (expiration not specified)
https://www.xenproject.org/templates/xen/warp/css/system.css (expiration not specified)
https://www.xenproject.org/templates/xen/warp/css/tools.css (expiration not specified)
https://www.xenproject.org/templates/xen/warp/js/accordionmenu.js (expiration not specified)
https://www.xenproject.org/templates/xen/warp/js/dropdownmenu.js (expiration not specified)
https://www.xenproject.org/templates/xen/warp/js/responsive.js (expiration not specified)
https://www.xenproject.org/templates/xen/warp/js/search.js (expiration not specified)
https://www.xenproject.org/templates/xen/warp/js/warp.js (expiration not specified)
https://www.xenproject.org/templates/xen/warp/libraries/jquery/jquery.js (expiration not specified)
https://www.xenproject.org/templates/xen/warp/systems/joomla/css/system.css (expiration not specified)
https://m.addthisedge.com/live/boost/ra-512f2aff6e…_ate.track.config_resp (60 seconds)
https://s7.addthis.com/js/300/addthis_widget.js (10 minutes)
https://static.doubleclick.net/instream/ad_status.js (15 minutes)
http://img.youtube.com/vi/QP8GM0gEoJE/default.jpg (2 hours)
http://img.youtube.com/vi/jZNXtqFJpuc/default.jpg (2 hours)
http://img.youtube.com/vi/sjQnAIJji4k/default.jpg (2 hours)
https://ssl.google-analytics.com/ga.js (2 hours)

priority - 54Reduce server response time

priority - 26Avoid 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://xen.org/
http://www.xenproject.org/
https://www.xenproject.org/

priority - 7Optimize images

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

Optimize the following images to reduce their size by 66.1KiB (36% reduction).

Compressing https://www.xenproject.org/templates/xen/images/slideshow/slideshow-bg.jpg could save 29.7KiB (32% reduction).
Compressing https://www.xenproject.org/templates/xen/images/lfcp_green_footer.jpg could save 13.6KiB (37% reduction).
Compressing https://www.xenproject.org/templates/xen/images/lfcp_header_green.png could save 2.6KiB (40% reduction).
Compressing http://img.youtube.com/vi/jZNXtqFJpuc/default.jpg could save 2.5KiB (53% reduction).
Compressing https://www.xenproject.org/templates/xen/images/linux-foundation.png could save 2.5KiB (47% reduction).
Compressing http://img.youtube.com/vi/QP8GM0gEoJE/default.jpg could save 1.4KiB (31% reduction).
Compressing https://www.xenproject.org/images/icons/chair.png could save 1.2KiB (41% reduction).
Compressing https://www.xenproject.org/templates/xen/images/slideshow/next.png could save 1.1KiB (35% reduction).
Compressing https://www.xenproject.org/templates/xen/images/slideshow/prev.png could save 1.1KiB (35% reduction).
Compressing https://www.xenproject.org/images/modules/logo/xen-logo.png could save 1KiB (12% reduction).
Compressing https://www.xenproject.org/templates/xen/images/footer/website-icon.png could save 907B (64% reduction).
Compressing https://www.xenproject.org/templates/xen/images/login/login-arrow.png could save 901B (81% reduction).
Compressing https://www.xenproject.org/templates/xen/images/footer/resources-icon.png could save 898B (83% reduction).
Compressing https://www.xenproject.org/templates/xen/images/footer/connect-icon.png could save 884B (81% reduction).
Compressing http://img.youtube.com/vi/sjQnAIJji4k/default.jpg could save 879B (19% reduction).
Compressing https://www.xenproject.org/templates/xen/images/footer/aboutxen-icon.png could save 876B (78% reduction).
Compressing https://www.xenproject.org/templates/xen/images/main-title-bg3.png could save 870B (83% reduction).
Compressing https://www.xenproject.org/templates/xen/images/background/bg.png could save 860B (91% reduction).
Compressing https://www.xenproject.org/templates/xen/images/search/search-icon.png could save 854B (51% reduction).
Compressing https://www.xenproject.org/templates/xen/images/main-title-bg.png could save 836B (87% reduction).
Compressing https://www.xenproject.org/templates/xen/images/main-title-bg2.png could save 724B (55% 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 2.7KiB (22% reduction).

Minifying https://www.xenproject.org/templates/xen/css/style.css could save 1.5KiB (16% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/warp/css/base.css could save 758B (45% reduction) after compression.
Minifying https://www.xenproject.org/templates/xen/warp/css/tools.css could save 558B (38% reduction) after compression.

xen.org Mobile Resource Breakdown

Total Resources109
Number of Hosts16
Static Resources87
JavaScript Resources36
CSS Resources30

xen.org mobile page usability

Last tested: 2017-05-22

Mobile Usability Good
95/100

xen.org Mobile Usability Test Quick Summary


priority - 4Size 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="/" class="level1 active current">Home</a> and 1 others are close to other tap targets.

The tap target <a href="http://wiki.xenproject.org" class="item1 level1">Wiki</a> and 1 others are close to other tap targets.

The tap target <a href="http://lists.xenproject.org" class="item3 level1">Lists</a> is close to 2 other tap targets.

The tap target <a href="http://xenorg.uservoice.com" class="item4 level1">User Voice</a> and 1 others are close to other tap targets.

The tap target <a href="#" class="addthis_button…erred_2 at300b"></a> and 14 others are close to other tap targets.
The tap target <a href="/project-mission.html" class="level1">Project Mission</a> and 27 others are close to other tap targets.

xen.org HTML validation

Errors

Attribute “xmlns:fb” not allowed here.

Line: 2 Column: 16 - 62
"...TYPE HTML> <html xmlns:fb="http://ogp.me/ns/fb#" lang="en-gb" dir="ltr"> <hea..."

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Line: 6 Column: 1 - 62
"...utf-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta..."

The “width” attribute on the “td” element is obsolete. Use CSS instead.

Line: 241 Column: 5 - 31
"...body> <tr> <td width="587px" align="left">&nbsp;..." Line: 242 Column: 43 - 44
"...nbsp;</td> <td width="280px" align="left" valign="top"> <p>&n..." Line: 255 Column: 5 - 30
"...body> <tr> <td width="44px" align="left">&nbsp;..." Line: 256 Column: 42 - 71
"...nbsp;</td> <td width="85px" align="left" valign="top" style="padding-right: 0px;"><a hre..." Line: 257 Column: 1 - 29
"...</a></td> <td width="6px" align="left">&nbsp;..." Line: 258 Column: 41 - 72
"...nbsp;</td> <td width="375px" align="left" valign="top" style="padding-right: 0px;"><a hre..." Line: 259 Column: 249 - 29
"...></a></td> <td width="6px" align="left">&nbsp;..." Line: 260 Column: 41 - 29
"...nbsp;</td> <td width="6px" align="left">&nbsp;..." Line: 261 Column: 41 - 73
"...nbsp;</td> <td width="185px" align="right" valign="top" style="padding-right: 0px;"><a hre..." Line: 565 Column: 5 - 17
"...body> <tr> <td width="40px"><img s..." Line: 569 Column: 5 - 17
"...</tr> <tr> <td width="40px"><img s..." Line: 573 Column: 5 - 17
"...</tr> <tr> <td width="40px"><img s..." Line: 577 Column: 5 - 17
"...</tr> <tr> <td width="40px"><img s..." Line: 581 Column: 5 - 17
"...</tr> <tr> <td width="40px"><img s..." Line: 585 Column: 5 - 17
"...</tr> <tr> <td width="40px"><img s..." Line: 589 Column: 5 - 17
"...</tr> <tr> <td width="40px"><img s..." Line: 593 Column: 5 - 17
"...</tr> <tr> <td width="40px"><img s..."

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

Line: 241 Column: 5 - 31
"...body> <tr> <td width="587px" align="left">&nbsp;..." Line: 242 Column: 43 - 44
"...nbsp;</td> <td width="280px" align="left" valign="top"> <p>&n..." Line: 255 Column: 5 - 30
"...body> <tr> <td width="44px" align="left">&nbsp;..." Line: 256 Column: 42 - 71
"...nbsp;</td> <td width="85px" align="left" valign="top" style="padding-right: 0px;"><a hre..." Line: 257 Column: 1 - 29
"...</a></td> <td width="6px" align="left">&nbsp;..." Line: 258 Column: 41 - 72
"...nbsp;</td> <td width="375px" align="left" valign="top" style="padding-right: 0px;"><a hre..." Line: 259 Column: 249 - 29
"...></a></td> <td width="6px" align="left">&nbsp;..." Line: 260 Column: 41 - 29
"...nbsp;</td> <td width="6px" align="left">&nbsp;..." Line: 261 Column: 41 - 73
"...nbsp;</td> <td width="185px" align="right" valign="top" style="padding-right: 0px;"><a hre..."

The “valign” attribute on the “td” element is obsolete. Use CSS instead.

Line: 242 Column: 43 - 44
"...nbsp;</td> <td width="280px" align="left" valign="top"> <p>&n..." Line: 256 Column: 42 - 71
"...nbsp;</td> <td width="85px" align="left" valign="top" style="padding-right: 0px;"><a hre..." Line: 258 Column: 41 - 72
"...nbsp;</td> <td width="375px" align="left" valign="top" style="padding-right: 0px;"><a hre..." Line: 261 Column: 41 - 73
"...nbsp;</td> <td width="185px" align="right" valign="top" style="padding-right: 0px;"><a hre..."

Attribute “http:” not allowed on element “a” at this point.

Line: 298 Column: 71 - 292
"...0,0.35);"><a style="color: #dddddd; text-shadow: 0px 1px 0px rgba(0,0,0,0.35);" http:="" www="" linux="" com="" news="" enterprise="" systems-management="" 863439-open-source-security-process-part-1-a-cloud-security-introduction="">Part 1..."

Attribute “www” not allowed on element “a” at this point.

Line: 298 Column: 71 - 292
"...0,0.35);"><a style="color: #dddddd; text-shadow: 0px 1px 0px rgba(0,0,0,0.35);" http:="" www="" linux="" com="" news="" enterprise="" systems-management="" 863439-open-source-security-process-part-1-a-cloud-security-introduction="">Part 1..."

Attribute “linux” not allowed on element “a” at this point.

Line: 298 Column: 71 - 292
"...0,0.35);"><a style="color: #dddddd; text-shadow: 0px 1px 0px rgba(0,0,0,0.35);" http:="" www="" linux="" com="" news="" enterprise="" systems-management="" 863439-open-source-security-process-part-1-a-cloud-security-introduction="">Part 1..."

Attribute “com” not allowed on element “a” at this point.

Line: 298 Column: 71 - 292
"...0,0.35);"><a style="color: #dddddd; text-shadow: 0px 1px 0px rgba(0,0,0,0.35);" http:="" www="" linux="" com="" news="" enterprise="" systems-management="" 863439-open-source-security-process-part-1-a-cloud-security-introduction="">Part 1..."

Attribute “news” not allowed on element “a” at this point.

Line: 298 Column: 71 - 292
"...0,0.35);"><a style="color: #dddddd; text-shadow: 0px 1px 0px rgba(0,0,0,0.35);" http:="" www="" linux="" com="" news="" enterprise="" systems-management="" 863439-open-source-security-process-part-1-a-cloud-security-introduction="">Part 1..."

Attribute “enterprise” not allowed on element “a” at this point.

Line: 298 Column: 71 - 292
"...0,0.35);"><a style="color: #dddddd; text-shadow: 0px 1px 0px rgba(0,0,0,0.35);" http:="" www="" linux="" com="" news="" enterprise="" systems-management="" 863439-open-source-security-process-part-1-a-cloud-security-introduction="">Part 1..."

Attribute “systems-management” not allowed on element “a” at this point.

Line: 298 Column: 71 - 292
"...0,0.35);"><a style="color: #dddddd; text-shadow: 0px 1px 0px rgba(0,0,0,0.35);" http:="" www="" linux="" com="" news="" enterprise="" systems-management="" 863439-open-source-security-process-part-1-a-cloud-security-introduction="">Part 1..."

Attribute “863439-open-source-security-process-part-1-a-cloud-security-introduction” not allowed on element “a” at this point.

Line: 298 Column: 71 - 292
"...0,0.35);"><a style="color: #dddddd; text-shadow: 0px 1px 0px rgba(0,0,0,0.35);" http:="" www="" linux="" com="" news="" enterprise="" systems-management="" 863439-open-source-security-process-part-1-a-cloud-security-introduction="">Part 1..."

Attribute “addthis:url” not allowed on element “div” at this point.

Line: 365 Column: 991 - 1265
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://blog.xenproject.org/2018/07/19/xen-project-hypervisor-power-management-suspend-to-ram-on-arm-architectures/" addthis:title="Xen Project Hypervisor Power Management: Suspend-to-RAM on Arm Architectures"> <a cl..." Line: 378 Column: 1116 - 1450
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://blog.xenproject.org/2018/07/12/xen-project-hypervisor-virtualization-and-power-management-are-coalescing-into-an-energy-aware-hypervisor/" addthis:title="Xen Project Hypervisor: Virtualization and Power Management are Coalescing into an Energy-Aware Hypervisor"> <a cl..." Line: 391 Column: 948 - 1132
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://blog.xenproject.org/2018/07/12/xen-project-4-8-4-is-available/" addthis:title="Xen Project 4.8.4 is available!"> <a cl..." Line: 443 Column: 234 - 391
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://xen-orchestra.com/blog/xen-4-11-is-available/" addthis:title="Xen 4.11 is available"> <a cl..." Line: 456 Column: 663 - 814
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://xen-orchestra.com/blog/xen-orchestra-5-21/" addthis:title="Xen Orchestra 5.21"> <a cl..."

Attribute “addthis:title” not allowed on element “div” at this point.

Line: 365 Column: 991 - 1265
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://blog.xenproject.org/2018/07/19/xen-project-hypervisor-power-management-suspend-to-ram-on-arm-architectures/" addthis:title="Xen Project Hypervisor Power Management: Suspend-to-RAM on Arm Architectures"> <a cl..." Line: 378 Column: 1116 - 1450
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://blog.xenproject.org/2018/07/12/xen-project-hypervisor-virtualization-and-power-management-are-coalescing-into-an-energy-aware-hypervisor/" addthis:title="Xen Project Hypervisor: Virtualization and Power Management are Coalescing into an Energy-Aware Hypervisor"> <a cl..." Line: 391 Column: 948 - 1132
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://blog.xenproject.org/2018/07/12/xen-project-4-8-4-is-available/" addthis:title="Xen Project 4.8.4 is available!"> <a cl..." Line: 443 Column: 234 - 391
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://xen-orchestra.com/blog/xen-4-11-is-available/" addthis:title="Xen 4.11 is available"> <a cl..." Line: 456 Column: 663 - 814
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://xen-orchestra.com/blog/xen-orchestra-5-21/" addthis:title="Xen Orchestra 5.21"> <a cl..."

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

Line: 498 Column: 8 - 17
"..."> <thead> <tr valign="top"><th wi..."

The “width” attribute on the “th” element is obsolete. Use CSS instead.

Line: 498 Column: 18 - 33
"...ign="top"><th width="33%">Xen Pr..." Line: 498 Column: 61 - 76
"...on(s)</th><th width="33%">End of..." Line: 498 Column: 101 - 116
"...pport</th><th width="33%">End of..."

Element “tbody” not allowed as child of element “table” in this context. (Suppressing further errors from this subtree.)

Line: 505 Column: 9 - 7
"...> </tfoot> <tbody> <tr> ..."

Element “object” is missing one or more of the following attributes: “data”, “type”.

Line: 557 Column: 25 - 83
"...s_player"><object id="player" name="player" width="180" height="100"><param..."

The “border” attribute on the “table” element is obsolete. Use CSS instead.

Line: 562 Column: 1 - 18
"...learfix"> <table border="0"> <tbod..."

Stray start tag “head”.

Line: 600 Column: 113 - 118
"...clearfix"><head> <link..."

Stray end tag “head”.

Line: 602 Column: 1 - 7
"...t/css" /> </head> <styl..."

Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)

Line: 603 Column: 1 - 7
"...> </head> <style> </sty..."

Element “p” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)

Line: 611 Column: 7 - 9
"... <p>No eve..."

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Line: 630 Column: 7 - 116
"...r"> <img class="arrow" src="https://www.xenproject.org/components/com_allvideoshare/assets/play.png" border="0" /> ..." Line: 640 Column: 7 - 116
"...r"> <img class="arrow" src="https://www.xenproject.org/components/com_allvideoshare/assets/play.png" border="0" /> ..." Line: 650 Column: 7 - 116
"...r"> <img class="arrow" src="https://www.xenproject.org/components/com_allvideoshare/assets/play.png" border="0" /> ..."

Stray end tag “div”.

Line: 665 Column: 2 - 7
"... end --> </div> ..."

Warnings

Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.

Line: 2 Column: 16 - 62
"...TYPE HTML> <html xmlns:fb="http://ogp.me/ns/fb#" lang="en-gb" dir="ltr"> <hea..."

Attribute “http:” is not serializable as XML 1.0.

Line: 298 Column: 71 - 292
"...0,0.35);"><a style="color: #dddddd; text-shadow: 0px 1px 0px rgba(0,0,0,0.35);" http:="" www="" linux="" com="" news="" enterprise="" systems-management="" 863439-open-source-security-process-part-1-a-cloud-security-introduction="">Part 1..."

Attribute “863439-open-source-security-process-part-1-a-cloud-security-introduction” is not serializable as XML 1.0.

Line: 298 Column: 71 - 292
"...0,0.35);"><a style="color: #dddddd; text-shadow: 0px 1px 0px rgba(0,0,0,0.35);" http:="" www="" linux="" com="" news="" enterprise="" systems-management="" 863439-open-source-security-process-part-1-a-cloud-security-introduction="">Part 1..."

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

Line: 341 Column: 3 - 47
"...tion> <section id="breadcrumbs" class="grid-block"> ..." Line: 419 Column: 11 - 51
"... <section id="content" class="grid-block"> <div ..."

The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.

Line: 359 Column: 2 - 16
"...here --> <a name="u241"></a> ..." Line: 434 Column: 2 - 16
"...here --> <a name="u258"></a> ..."

Attribute “addthis:url” is not serializable as XML 1.0.

Line: 365 Column: 991 - 1265
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://blog.xenproject.org/2018/07/19/xen-project-hypervisor-power-management-suspend-to-ram-on-arm-architectures/" addthis:title="Xen Project Hypervisor Power Management: Suspend-to-RAM on Arm Architectures"> <a cl..." Line: 378 Column: 1116 - 1450
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://blog.xenproject.org/2018/07/12/xen-project-hypervisor-virtualization-and-power-management-are-coalescing-into-an-energy-aware-hypervisor/" addthis:title="Xen Project Hypervisor: Virtualization and Power Management are Coalescing into an Energy-Aware Hypervisor"> <a cl..." Line: 391 Column: 948 - 1132
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://blog.xenproject.org/2018/07/12/xen-project-4-8-4-is-available/" addthis:title="Xen Project 4.8.4 is available!"> <a cl..." Line: 443 Column: 234 - 391
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://xen-orchestra.com/blog/xen-4-11-is-available/" addthis:title="Xen 4.11 is available"> <a cl..." Line: 456 Column: 663 - 814
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://xen-orchestra.com/blog/xen-orchestra-5-21/" addthis:title="Xen Orchestra 5.21"> <a cl..."

Attribute “addthis:title” is not serializable as XML 1.0.

Line: 365 Column: 991 - 1265
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://blog.xenproject.org/2018/07/19/xen-project-hypervisor-power-management-suspend-to-ram-on-arm-architectures/" addthis:title="Xen Project Hypervisor Power Management: Suspend-to-RAM on Arm Architectures"> <a cl..." Line: 378 Column: 1116 - 1450
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://blog.xenproject.org/2018/07/12/xen-project-hypervisor-virtualization-and-power-management-are-coalescing-into-an-energy-aware-hypervisor/" addthis:title="Xen Project Hypervisor: Virtualization and Power Management are Coalescing into an Energy-Aware Hypervisor"> <a cl..." Line: 391 Column: 948 - 1132
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://blog.xenproject.org/2018/07/12/xen-project-4-8-4-is-available/" addthis:title="Xen Project 4.8.4 is available!"> <a cl..." Line: 443 Column: 234 - 391
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://xen-orchestra.com/blog/xen-4-11-is-available/" addthis:title="Xen 4.11 is available"> <a cl..." Line: 456 Column: 663 - 814
"... </strong><div class="addthis_toolbox addthis_default_style " addthis:url="https://xen-orchestra.com/blog/xen-orchestra-5-21/" addthis:title="Xen Orchestra 5.21"> <a cl..."

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

Line: 630 Column: 7 - 116
"...r"> <img class="arrow" src="https://www.xenproject.org/components/com_allvideoshare/assets/play.png" border="0" /> ..." Line: 631 Column: 7 - 195
".../> <img class="image" src="/images/modules/thumbnails/xpdds17.png" style="width:145px; height:80px;" title="Click to View : Xen Project Developer and Design Summit 2017 Playlist" border="0" /> ..." Line: 640 Column: 7 - 116
"...r"> <img class="arrow" src="https://www.xenproject.org/components/com_allvideoshare/assets/play.png" border="0" /> ..." Line: 641 Column: 7 - 211
".../> <img class="image" src="http://img.youtube.com/vi/sjQnAIJji4k/default.jpg" style="width:145px; height:80px;" title="Click to View : Rootlinux17: An Introduction to Xen Project Virtualisation" border="0" /> ..." Line: 650 Column: 7 - 116
"...r"> <img class="arrow" src="https://www.xenproject.org/components/com_allvideoshare/assets/play.png" border="0" /> ..." Line: 651 Column: 7 - 233
".../> <img class="image" src="http://img.youtube.com/vi/jZNXtqFJpuc/default.jpg" style="width:145px; height:80px;" title="Click to View : Rootlinux17: Hypervisors on ARM, Overview and Design Choices - Julien Grall, ARM" border="0" /> ..."

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xen.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.

xen.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.