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Validation error frequencies in Alexa top 500 front pages

From: Henri Sivonen <hsivonen@iki.fi>
Date: Sun, 3 Feb 2008 19:45:22 +0200
Message-Id: <6D63585B-2ADC-4F17-97C8-AD59CFA38D5D@iki.fi>
To: HTML Issue Tracking WG <public-html@w3.org>

I ran the front pages of Alexa global top 500 sites through the HTML5  
facet of Validator.nu:

The exact values of bad attribute values were replaced with  
"(consolidated)" as were duplicate IDs and usemap targets. After these  
replacements the occurrences of unique error message strings were  
tallied--this time *without* collapsing duplicates on a single page.  
Some requests timed out as seen in the message list. Support for old- 
style internal encoding declarations and checking for the contents of  
obsolete containers were added before running this study.

I hope the WG finds this data useful.

P.S. Surprisingly, there's one application/xhtml+xml front page in the  
global top 500: http://www.iwiw.hu

Henri Sivonen
Received on Sunday, 3 February 2008 17:45:37 UTC

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