If you have your own blog and want to check for error then you can visit this link.
This is Unicorn W3C's Unified Validator. Just you need to entry your blog url then click on check.You can improve quality of your web by using this validator.By this url you can check General conformance,CSS profile validation,Mobile OK check,Feed validator and custom tasks.
This is Unicorn W3C's Unified Validator. Just you need to entry your blog url then click on check.You can improve quality of your web by using this validator.By this url you can check General conformance,CSS profile validation,Mobile OK check,Feed validator and custom tasks.