To help you validate your WordPress site, here is a quick checklist:
- Validate HTML/XHTML
- Validate CSS
- Validate for Section 508 Standards (accessibility)
- Validate for WAI standards (accessibility)
- Validate Links (check for dead links)
- Validate Feeds
- Check across different browsers (include handheld computers, Mac, PC, and cellphones, too)
- Re-validate HTML and CSS
- Have friends, relatives, co-workers check your site
- When ready, you can post your site on the WordPress Forum’s Your WordPress for review