w3c.de Website Information

Daily Unique Visits: 1,054

Daily Page Views: 2,108

Income Per Day: $7

Estimated Value: $1,680

w3c.de is registered under .DE top-level domain. Please check other sites in .DE zone.

No name server records were found.

and is probably hosted by Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.. See the full list of other websites hosted by Verein zur Foerderung eines Deutschen Forschungsnetzes e.V..

The highest website w3c.de position in Alexa rank database was 442013 and the lowest rank position was 924664. Current position of w3c.de in Alexa rank database is 680263.

Desktop speed score of w3c.de (66/100) shows that the page desktop performance can be improved.

Mobile usability score of w3c.de (91/100) means that the page is mobile-friendly.

Mobile speed score of w3c.de (64/100) shows that the landing page performance on mobile devices is poor and can be improved.

w3c.de 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.

w3c.de 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: w3c.de
Status: connect

w3c.de server information

Servers Location

w3c.de desktop page speed rank

Last tested: 2018-03-05

Desktop Speed Medium

66/100

w3c.de Desktop Speed Test Quick Summary

priority - 34Optimize images

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

Optimize the following images to reduce their size by 332KiB (66% reduction).

Compressing https://www.w3.org/2016/05/digicon2016-small.jpg could save 159.7KiB (85% reduction).
Compressing and resizing https://www.w3.org/2016/05/TV-icon-imsc-ttml.png could save 100.1KiB (66% reduction).
Compressing http://www.w3c.de/wp-content/uploads/2016/09/markupforum2016.jpg could save 33.4KiB (64% reduction).
Compressing http://www.w3c.de/wp-content/uploads/2017/01/DFKI_Logo_d_schrift-300x62.jpg could save 19.7KiB (76% reduction).
Compressing http://w3c.dfki.de/img/logo-w3c-screen-lg.png could save 7.3KiB (29% reduction).
Compressing http://www.w3c.de/wp-content/uploads/2017/01/Basecamp_Logo_4C-300x135.jpg could save 4.9KiB (30% reduction).
Compressing http://www.w3c.de/wp-content/uploads/2017/01/logo_de_au_aktuell-300x69.png could save 4.3KiB (16% reduction).
Compressing and resizing http://www.w3c.de/img/twitter-bird.png could save 1.1KiB (41% reduction).
Compressing http://www.w3c.de/wp-content/uploads/2016/09/markupforum2016_logo.png could save 909B (28% reduction).
Compressing http://www.w3c.de/img/logo-w3c-mobile-lg.png could save 612B (14% reduction).

priority - 15Leverage 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://w3c.dfki.de/img/category-bg-fold.png (expiration not specified)
http://w3c.dfki.de/img/category-bg-right.png (expiration not specified)
http://w3c.dfki.de/img/category-bg.png (expiration not specified)
http://w3c.dfki.de/img/footer-shadow.png (expiration not specified)
http://w3c.dfki.de/img/logo-w3c-screen-lg.png (expiration not specified)
http://w3c.dfki.de/img/search-bg.png (expiration not specified)
http://w3c.dfki.de/img/skip.png (expiration not specified)
http://www.w3c.de/css/advanced.css (expiration not specified)
http://www.w3c.de/css/es.css (expiration not specified)
http://www.w3c.de/css/minimum.css (expiration not specified)
http://www.w3c.de/css/print.css (expiration not specified)
http://www.w3c.de/css/realprint.css (expiration not specified)
http://www.w3c.de/img/header-link.gif (expiration not specified)
http://www.w3c.de/img/logo-shadow.png (expiration not specified)
http://www.w3c.de/img/logo-w3c-mobile-lg.png (expiration not specified)
http://www.w3c.de/img/page/page_bkg.jpg (expiration not specified)
http://www.w3c.de/img/search-button.png (expiration not specified)
http://www.w3c.de/img/theme-all.png (expiration not specified)
http://www.w3c.de/img/twitter-bird.png (expiration not specified)
http://www.w3c.de/js/idiomas.js (expiration not specified)
http://www.w3c.de/js/main.js (expiration not specified)
http://www.w3c.de/js/mkr.js (expiration not specified)
http://www.w3c.de/wp-content/uploads/2016/09/image001-300x95.png (expiration not specified)
http://www.w3c.de/wp-content/uploads/2016/09/iotbarcamp-300x78.png (expiration not specified)
http://www.w3c.de/wp-content/uploads/2016/09/markupforum2016.jpg (expiration not specified)
http://www.w3c.de/wp-content/uploads/2016/09/markupforum2016_logo.png (expiration not specified)
http://www.w3c.de/wp-content/uploads/2017/01/Basecamp_Logo_4C-300x135.jpg (expiration not specified)
http://www.w3c.de/wp-content/uploads/2017/01/DFKI_Logo_d_schrift-300x62.jpg (expiration not specified)
http://www.w3c.de/wp-content/uploads/2017/01/logo_de_au_aktuell-300x69.png (expiration not specified)
http://connect.facebook.net/en_US/all.js (20 minutes)
http://www.google-analytics.com/analytics.js (2 hours)

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

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

Optimize CSS Delivery of the following:

http://www.w3c.de/css/minimum.css
http://www.w3c.de/css/es.css
http://www.w3c.de/css/advanced.css

w3c.de Desktop Resource Breakdown

Total Resources	41
Number of Hosts	8
Static Resources	33
JavaScript Resources	5
CSS Resources	5

w3c.de mobile page speed rank

Last tested: 2018-03-05

Mobile Speed Bad

64/100

w3c.de Mobile Speed Test Quick Summary

priority - 25Optimize images

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

Optimize the following images to reduce their size by 244.3KiB (64% reduction).

Compressing https://www.w3.org/2016/05/digicon2016-small.jpg could save 159.7KiB (85% reduction).
Compressing http://www.w3c.de/wp-content/uploads/2016/09/markupforum2016.jpg could save 33.4KiB (64% reduction).
Compressing http://www.w3c.de/wp-content/uploads/2017/01/DFKI_…_d_schrift-768x160.jpg could save 25.3KiB (55% reduction).
Compressing http://www.w3c.de/wp-content/uploads/2017/01/Basecamp_Logo_4C-768x347.jpg could save 16KiB (31% reduction).
Compressing http://www.w3c.de/wp-content/uploads/2017/01/logo_de_au_aktuell.png could save 8.3KiB (24% reduction).
Compressing http://www.w3c.de/wp-content/uploads/2016/09/markupforum2016_logo.png could save 909B (28% reduction).
Compressing http://www.w3c.de/img/logo-w3c-mobile-lg.png could save 612B (14% reduction).

priority - 16Leverage 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://www.w3c.de/css/advanced.css (expiration not specified)
http://www.w3c.de/css/es.css (expiration not specified)
http://www.w3c.de/css/minimum.css (expiration not specified)
http://www.w3c.de/css/print.css (expiration not specified)
http://www.w3c.de/css/realprint.css (expiration not specified)
http://www.w3c.de/img/header-link.gif (expiration not specified)
http://www.w3c.de/img/logo-shadow.png (expiration not specified)
http://www.w3c.de/img/logo-w3c-mobile-lg.png (expiration not specified)
http://www.w3c.de/img/search-button.png (expiration not specified)
http://www.w3c.de/img/twitter-bird.png (expiration not specified)
http://www.w3c.de/js/idiomas.js (expiration not specified)
http://www.w3c.de/js/main.js (expiration not specified)
http://www.w3c.de/js/mkr.js (expiration not specified)
http://www.w3c.de/wp-content/uploads/2016/09/image001.png (expiration not specified)
http://www.w3c.de/wp-content/uploads/2016/09/iotbarcamp-768x200.png (expiration not specified)
http://www.w3c.de/wp-content/uploads/2016/09/markupforum2016.jpg (expiration not specified)
http://www.w3c.de/wp-content/uploads/2016/09/markupforum2016_logo.png (expiration not specified)
http://www.w3c.de/wp-content/uploads/2017/01/Basecamp_Logo_4C-768x347.jpg (expiration not specified)
http://www.w3c.de/wp-content/uploads/2017/01/DFKI_…_d_schrift-768x160.jpg (expiration not specified)
http://www.w3c.de/wp-content/uploads/2017/01/logo_de_au_aktuell.png (expiration not specified)
http://connect.facebook.net/en_US/all.js (20 minutes)
http://www.google-analytics.com/analytics.js (2 hours)

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

Your page has 4 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

http://www.w3c.de/css/minimum.css
http://www.w3c.de/css/es.css
http://www.w3c.de/css/advanced.css
http://www.w3c.de/css/minimum.css

w3c.de Mobile Resource Breakdown

Total Resources	32
Number of Hosts	7
Static Resources	24
JavaScript Resources	5
CSS Resources	5

w3c.de mobile page usability

Last tested: 2018-03-05

Mobile Usability Good

91/100

w3c.de Mobile Usability Test Quick Summary

priority - 4Size content to viewport

The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.

The page content is 533 CSS pixels wide, but the viewport is only 320 CSS pixels wide. The following elements fall outside the viewport:

The element <img src="http://www.w3c…pforum2016.jpg" class="wp-image-2105…full alignnone"> falls outside the viewport.
The element <img src="https://www.w3…2016-small.jpg" class=""> falls outside the viewport.
The element <p class="wp-caption-text">Jeff Jaffe, W3…10. Mai 2016</p> falls outside the viewport.

priority - 3Configure the viewport

Your page specifies a fixed-width mobile viewport. Consider using a responsive viewport to allow your page to render properly on all devices.

priority - 1Size 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="http://www.w3c.de/impressum/">Impressum</a> and 7 others are close to other tap targets.

The tap target <a href="http://www.keio.ac.jp/">Keio Univerität</a> and 20 others are close to other tap targets.
The tap target <a href="/">Home</a> and 8 others are close to other tap targets.
The tap target <a href="http://www.csail.mit.edu/" class="english">MIT [englisch]</a> is close to 1 other tap targets.

w3c.de HTML validation

Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Line: 1 Column: 1 - 121
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html..."

When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.

Line: 2 Column: 122 - 57
"...onal.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de"> <head..." Line: 772 Column: 2 - 37
"...ture --> <p class="copyright" xml:lang="en" >Copyri..."

The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.

Line: 3 Column: 58 - 53
"...lang="de"> <head profile="http://www.w3.org/2000/08/w3c-synd/#"> <tit..."

Bad value “handheld, all” for attribute “media” on element “link”: Deprecated media type “handheld”. For guidance, see the Media Types section in the current Media Queries specification.

Line: 8 Column: 3 - 89
"...os --> <link rel="stylesheet" href="/css/minimum.css" type="text/css" media="handheld, all" /> <li..." Line: 9 Column: 3 - 84
"...all" /> <link rel="stylesheet" href="/css/es.css" type="text/css" media="handheld, all" /> <st..."

Element “link” is missing required attribute “href”.

Line: 11 Column: 2 - 16
"...</style> <link rel="" /> <li..."

Bad value “handheld, only screen and (max-device-width: 480px)” for attribute “media” on element “link”: Deprecated media type “handheld”. For guidance, see the Media Types section in the current Media Queries specification.

Line: 12 Column: 3 - 127
"...l="" /> <link href="/css/minimum.css" rel="stylesheet" type="text/css" media="handheld, only screen and (max-device-width: 480px)" /> <m..."

Bad value “archives” for attribute “rel” on element “link”: The string “archives” is not a registered keyword.

Line: 21 Column: 3 - 76
"...php" /> <link rel='archives' title='Mai 2017' href='http://www.w3c.de/2017/05/' /> <lin..." Line: 22 Column: 2 - 79
".../05/' /> <link rel='archives' title='Februar 2017' href='http://www.w3c.de/2017/02/' /> <lin..." Line: 23 Column: 2 - 78
".../02/' /> <link rel='archives' title='Januar 2017' href='http://www.w3c.de/2017/01/' /> <lin..." Line: 24 Column: 2 - 80
".../01/' /> <link rel='archives' title='November 2016' href='http://www.w3c.de/2016/11/' /> <lin..." Line: 25 Column: 2 - 81
".../11/' /> <link rel='archives' title='September 2016' href='http://www.w3c.de/2016/09/' /> <lin..." Line: 26 Column: 2 - 75
".../09/' /> <link rel='archives' title='Mai 2016' href='http://www.w3c.de/2016/05/' /> <lin..." Line: 27 Column: 2 - 79
".../05/' /> <link rel='archives' title='Februar 2016' href='http://www.w3c.de/2016/02/' /> <lin..." Line: 28 Column: 2 - 79
".../02/' /> <link rel='archives' title='Oktober 2015' href='http://www.w3c.de/2015/10/' /> <lin..." Line: 29 Column: 2 - 81
".../10/' /> <link rel='archives' title='September 2015' href='http://www.w3c.de/2015/09/' /> <lin..." Line: 30 Column: 2 - 78
".../09/' /> <link rel='archives' title='August 2014' href='http://www.w3c.de/2014/08/' /> <lin..." Line: 31 Column: 2 - 76
".../08/' /> <link rel='archives' title='Juli 2014' href='http://www.w3c.de/2014/07/' /> <lin..." Line: 32 Column: 2 - 76
".../07/' /> <link rel='archives' title='März 2014' href='http://www.w3c.de/2014/03/' /> <lin..." Line: 33 Column: 2 - 79
".../03/' /> <link rel='archives' title='Februar 2014' href='http://www.w3c.de/2014/02/' /> <lin..." Line: 34 Column: 2 - 80
".../02/' /> <link rel='archives' title='Dezember 2013' href='http://www.w3c.de/2013/12/' /> <lin..." Line: 35 Column: 2 - 80
".../12/' /> <link rel='archives' title='November 2013' href='http://www.w3c.de/2013/11/' /> <lin..." Line: 36 Column: 2 - 79
".../11/' /> <link rel='archives' title='Oktober 2013' href='http://www.w3c.de/2013/10/' /> <lin..." Line: 37 Column: 2 - 78
".../10/' /> <link rel='archives' title='August 2013' href='http://www.w3c.de/2013/08/' /> <lin..." Line: 38 Column: 2 - 76
".../08/' /> <link rel='archives' title='Juni 2013' href='http://www.w3c.de/2013/06/' /> <lin..." Line: 39 Column: 2 - 79
".../06/' /> <link rel='archives' title='Februar 2013' href='http://www.w3c.de/2013/02/' /> <lin..." Line: 40 Column: 2 - 79
".../02/' /> <link rel='archives' title='Oktober 2012' href='http://www.w3c.de/2012/10/' /> <lin..." Line: 41 Column: 2 - 81
".../10/' /> <link rel='archives' title='September 2012' href='http://www.w3c.de/2012/09/' /> <lin..." Line: 42 Column: 2 - 78
".../09/' /> <link rel='archives' title='August 2012' href='http://www.w3c.de/2012/08/' /> <lin..." Line: 43 Column: 2 - 76
".../08/' /> <link rel='archives' title='Juli 2012' href='http://www.w3c.de/2012/07/' /> <lin..." Line: 44 Column: 2 - 76
".../07/' /> <link rel='archives' title='Juni 2012' href='http://www.w3c.de/2012/06/' /> <lin..." Line: 45 Column: 2 - 75
".../06/' /> <link rel='archives' title='Mai 2012' href='http://www.w3c.de/2012/05/' /> <lin..." Line: 46 Column: 2 - 76
".../05/' /> <link rel='archives' title='März 2012' href='http://www.w3c.de/2012/03/' /> <lin..." Line: 47 Column: 2 - 79
".../03/' /> <link rel='archives' title='Februar 2012' href='http://www.w3c.de/2012/02/' /> <lin..." Line: 48 Column: 2 - 78
".../02/' /> <link rel='archives' title='Januar 2012' href='http://www.w3c.de/2012/01/' /> <lin..." Line: 49 Column: 2 - 79
".../01/' /> <link rel='archives' title='Oktober 2011' href='http://www.w3c.de/2011/10/' /> <lin..." Line: 50 Column: 2 - 81
".../10/' /> <link rel='archives' title='September 2011' href='http://www.w3c.de/2011/09/' /> <lin..." Line: 51 Column: 2 - 78
".../09/' /> <link rel='archives' title='August 2011' href='http://www.w3c.de/2011/08/' /> <lin..." Line: 52 Column: 2 - 76
".../08/' /> <link rel='archives' title='Juni 2011' href='http://www.w3c.de/2011/06/' /> <lin..." Line: 53 Column: 2 - 75
".../06/' /> <link rel='archives' title='Mai 2011' href='http://www.w3c.de/2011/05/' /> <lin..." Line: 54 Column: 2 - 76
".../05/' /> <link rel='archives' title='März 2011' href='http://www.w3c.de/2011/03/' /> <lin..." Line: 55 Column: 2 - 79
".../03/' /> <link rel='archives' title='Februar 2011' href='http://www.w3c.de/2011/02/' /> <lin..." Line: 56 Column: 2 - 78
".../02/' /> <link rel='archives' title='Januar 2011' href='http://www.w3c.de/2011/01/' /> <lin..." Line: 57 Column: 2 - 80
".../01/' /> <link rel='archives' title='Dezember 2010' href='http://www.w3c.de/2010/12/' /> <lin..." Line: 58 Column: 2 - 81
".../12/' /> <link rel='archives' title='September 2010' href='http://www.w3c.de/2010/09/' /> <lin..." Line: 59 Column: 2 - 78
".../09/' /> <link rel='archives' title='August 2010' href='http://www.w3c.de/2010/08/' /> <lin..." Line: 60 Column: 2 - 76
".../08/' /> <link rel='archives' title='Juni 2010' href='http://www.w3c.de/2010/06/' /> <lin..." Line: 61 Column: 2 - 75
".../06/' /> <link rel='archives' title='Mai 2010' href='http://www.w3c.de/2010/05/' /> <lin..." Line: 62 Column: 2 - 76
".../05/' /> <link rel='archives' title='März 2010' href='http://www.w3c.de/2010/03/' /> <lin..." Line: 63 Column: 2 - 78
".../03/' /> <link rel='archives' title='Januar 2010' href='http://www.w3c.de/2010/01/' /> <lin..." Line: 64 Column: 2 - 76
".../01/' /> <link rel='archives' title='Juli 2009' href='http://www.w3c.de/2009/07/' /> <lin..." Line: 65 Column: 2 - 76
".../07/' /> <link rel='archives' title='Juni 2009' href='http://www.w3c.de/2009/06/' /> <lin..." Line: 66 Column: 2 - 75
".../06/' /> <link rel='archives' title='Mai 2009' href='http://www.w3c.de/2009/05/' /> <lin..." Line: 67 Column: 2 - 77
".../05/' /> <link rel='archives' title='April 2009' href='http://www.w3c.de/2009/04/' /> <lin..." Line: 68 Column: 2 - 79
".../04/' /> <link rel='archives' title='Februar 2009' href='http://www.w3c.de/2009/02/' /> <lin..." Line: 69 Column: 2 - 80
".../02/' /> <link rel='archives' title='Dezember 2008' href='http://www.w3c.de/2008/12/' /> <lin..." Line: 70 Column: 2 - 80
".../12/' /> <link rel='archives' title='November 2008' href='http://www.w3c.de/2008/11/' /> <lin..." Line: 71 Column: 2 - 79
".../11/' /> <link rel='archives' title='Oktober 2008' href='http://www.w3c.de/2008/10/' /> <lin..." Line: 72 Column: 2 - 76
".../10/' /> <link rel='archives' title='Juli 2008' href='http://www.w3c.de/2008/07/' /> <lin..." Line: 73 Column: 2 - 78
".../07/' /> <link rel='archives' title='Januar 2008' href='http://www.w3c.de/2008/01/' /> ..."

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

Line: 152 Column: 7 - 24
"...--> <div class="menu"><ul> <..."

Bad value “attachment wp-att-2137” for attribute “rel” on element “a”: The string “wp-att-2137” is not a registered keyword.

Line: 430 Column: 7 - 71
"... <h3><a href="http://www.iotbarcamp.de/" rel="attachment wp-att-2137"><img c..."

Bad value “attachment wp-att-2141” for attribute “rel” on element “a”: The string “wp-att-2141” is not a registered keyword.

Line: 437 Column: 4 - 84
"...a></p> <p><a href="http://www.iotbarcamp.de/" target="_blank" rel="attachment wp-att-2141"><img c..."

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

Line: 451 Column: 73 - 87
"...bookmark"><markupforum /> 2016<..."

Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.

Line: 451 Column: 73 - 87
"...bookmark"><markupforum /> 2016<..."

End tag “a” violates nesting rules.

Line: 451 Column: 93 - 96
"...um /> 2016</a></h2> ..."

Bad value “attachment wp-att-2105” for attribute “rel” on element “a”: The string “wp-att-2105” is not a registered keyword.

Line: 456 Column: 4 - 85
"...p;</p> <p><a href="http://www.markupforum.de/" target="_blank" rel="attachment wp-att-2105"><img c..."

Bad value “attachment wp-att-2101” for attribute “rel” on element “a”: The string “wp-att-2101” is not a registered keyword.

Line: 468 Column: 4 - 112
"...n></p> <p><a href="http://www.w3c.de/wp-content/uploads/2016/09/markupforum2016_logo.png" rel="attachment wp-att-2101"><img c..."

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

Line: 562 Column: 71 - 163
"...-picture"><img src="https://www.w3.org/2016/05/digicon2016-small.jpg" width="400" height="267" class /><p cla..."

Bad value “10%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.

Line: 700 Column: 124 - 230
"...o-border"><img src="/img/twitter-bird.png" alt="Twitter" class="social-icon" width="10%" style="margin-right:20px" /></a> <..."

Stray end tag “div”.

Line: 723 Column: 3 - 8
"...in --> </div> <!-- ..."

The “acronym” element is obsolete. Use the “abbr” element instead.

Line: 772 Column: 150 - 204
"...mit.edu/"><acronym title="Massachusetts Institute of Technology">MIT</a..." Line: 772 Column: 285 - 362
"...rcim.eu/"><acronym title="European Research Consortium for Informatics and Mathematics">ERCIM<..."

The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “<” instead.

Line: 784 Column: 1 - 9
"...--> //]]> </script> <scri..." Line: 789 Column: 1 - 9
"...--> //]]> </script> <scri..." Line: 794 Column: 1 - 9
"...--> //]]> </script> </div..."

Warnings

Empty heading.

Line: 344 Column: 3 - 15
"...2537"> <h2 class=""><a hre..." Line: 411 Column: 1 - 15
"...8220;</p> <h2 id="toc_1"></h2> ..." Line: 431 Column: 1 - 4
"...</a></h3> <h3></h3> ..."

This document appears to be written in German. Consider adding “lang="de"” (or variant) to the “html” start tag.

Line: 2 Column: 122 - 57
"...onal.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de"> <head..."

w3c.de similar domains

Similar domains:

www.w3c.com
www.w3c.net
www.w3c.org
www.w3c.info
www.w3c.biz
www.w3c.us
www.w3c.mobi
www.3c.de
www.w3c.de
www.q3c.de
www.wq3c.de
www.qw3c.de
www.a3c.de
www.wa3c.de
www.aw3c.de
www.s3c.de
www.ws3c.de
www.sw3c.de
www.e3c.de
www.we3c.de
www.ew3c.de
www.wc.de
www.w3.de
www.w3x.de
www.w3cx.de
www.w3xc.de
www.w3d.de
www.w3cd.de
www.w3dc.de
www.w3f.de
www.w3cf.de
www.w3fc.de
www.w3v.de
www.w3cv.de
www.w3vc.de

w3c.de 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.

w3c.de 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.

W3C.DE Website Information

w3c.de Website Information

Advertisement

w3c.de Alexa Rank

w3c.de whois

w3c.de server information

Servers Location

w3c.de desktop page speed rank

w3c.de Desktop Speed Test Quick Summary

priority - 34Optimize images

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

Optimize the following images to reduce their size by 332KiB (66% reduction).

priority - 15Leverage 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:

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

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

Optimize CSS Delivery of the following:

w3c.de Desktop Resource Breakdown

w3c.de mobile page speed rank

w3c.de Mobile Speed Test Quick Summary

priority - 25Optimize images

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

Optimize the following images to reduce their size by 244.3KiB (64% reduction).

priority - 16Leverage 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:

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

Your page has 4 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

w3c.de Mobile Resource Breakdown

w3c.de mobile page usability

w3c.de Mobile Usability Test Quick Summary

priority - 4Size content to viewport

The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.

The page content is 533 CSS pixels wide, but the viewport is only 320 CSS pixels wide. The following elements fall outside the viewport:

priority - 3Configure the viewport

Your page specifies a fixed-width mobile viewport. Consider using a responsive viewport to allow your page to render properly on all devices.

priority - 1Size 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.

w3c.de HTML validation

Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.

The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.

Bad value “handheld, all” for attribute “media” on element “link”: Deprecated media type “handheld”. For guidance, see the Media Types section in the current Media Queries specification.

Element “link” is missing required attribute “href”.

Bad value “handheld, only screen and (max-device-width: 480px)” for attribute “media” on element “link”: Deprecated media type “handheld”. For guidance, see the Media Types section in the current Media Queries specification.

Bad value “archives” for attribute “rel” on element “link”: The string “archives” is not a registered keyword.

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

Bad value “attachment wp-att-2137” for attribute “rel” on element “a”: The string “wp-att-2137” is not a registered keyword.

Bad value “attachment wp-att-2141” for attribute “rel” on element “a”: The string “wp-att-2141” is not a registered keyword.

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

Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.

End tag “a” violates nesting rules.

Bad value “attachment wp-att-2105” for attribute “rel” on element “a”: The string “wp-att-2105” is not a registered keyword.

Bad value “attachment wp-att-2101” for attribute “rel” on element “a”: The string “wp-att-2101” is not a registered keyword.

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

Bad value “10%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.

Stray end tag “div”.

The “acronym” element is obsolete. Use the “abbr” element instead.

The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “<” instead.

Warnings

Empty heading.

This document appears to be written in German. Consider adding “lang="de"” (or variant) to the “html” start tag.

w3c.de similar domains

w3c.de Ping

w3c.de TRACEROUTE