Gevalideerd xhtml basic
Online validering van xhtml basic 1.1
Validome HTML / XHTML / WML / XML Validator
W3C Markup Validation Service
WDG HTML Validator
XML Schema Validator
–––––––––––––––––––––––––––––––––––––––––––––––––––
Validome
W3C XHTML Basic 1.1
WDG
WDG
XML SV
Tidy
W3C CSS
–––––––––––––––––––––––––––––––––––––––––––––––––––