Is your website up to W3C HTML coding standards.
This plugin will allow you to test each page or post on your site against W3C Validator..
Download the plugin, extract and upload it to your plugins folder on your server...
Go to your posts or your pages and click the.
This plugin will send URL of your page or post to W3C Validator API to verify that you have HTML code...
If your page or post is invalid, link is provided to show you what needs to be fixed...
It would be very cool to allow one button press to validate all posts rather than click hundreds one by one
Read more