Validates the HTML of a page using W3C validation service and reports number of errors and warnings.
W3CValidate(“http://google.com”) => “37 Errors, 2 Warnings”
Note that this is using W3C API and missure (massive amounts of validations) can lead to your IP beeing blocked by W3C. I’ve added a 1000ms sleep between validations to avoid this.
Get help with this function in the SeoTools Community Forum.