Validator

Validator †

文法チェックプログラム

CSS Validator

• http://jigsaw.w3.org/css-validator/

HTML Validator

• http://validator.w3.org/

Link Cheker

• http://validator.w3.org/checklink/

MobileOK checker

• http://validator.w3.org/mobile/

Section 508 Accessibility

• http://www.contentquality.com/

Another HTML Lint(Japanese)

• http://openlab.ring.gr.jp/k16/htmllint/index.html

RSS/RDF/ATOM Feed Validator

• http://validator.w3.org/feed/
• http://www.w3.org/RDF/Validator/
• http://feedvalidator.org/
• http://rss.scripting.com/

Robots.txt Validator

• http://www.clockwatchers.com/robots_tool.html