This question about This website: Answered
W3C Markup Validator
I can not check the service validation code of the
W3C for the (X)HTML of
NatSkin because the url http://foswiki.org answered "403 Forbidden" in the
http://validator.w3.org. But still wonder if we code valid XHTML and CSS with
NatSkin?
Answer
That user-agent must on our server blacklist. Try setting up your own NatSkin installation for testing and validation. It would be interesting to find out.
You can now check foswiki.org pages via the useful
W3C tools as the block has been removed and
ApacheConfigGenerator has been updated in the same way.
(However, this site is no longer running NatSkin.)