[1]
[CITE[(X)HTML5 Conformance Checking Service]] ([CODE[2007-04-09 17:04:59 +09:00]] 版) <http://hsivonen.iki.fi/validator/html5/>
([[名無しさん]])

[2]
[CITE[Fake real-time blog from XTech 2007: Henri Sivonen's Implementing an HTML5 conformance checker using XML tools - O'Reilly XML Blog]] ([[Rick Jelliffe]] 著, [CODE[2007-05-26 12:14:40 +09:00]] 版) <http://www.oreillynet.com/xml/blog/2007/05/fake_realtime_blog_from_xtech.html>
([[名無しさん]] [WEAK[2007-05-26 03:20:49 +00:00]])


[3]
[CITE[(X)HTML5 Conformance Checking Service]] ([TIME[2007-09-10 05:26:10 +09:00]] 版) <http://html5.validator.nu/>
([[名無しさん]])