Validate Blogger Website or any by Google Structured Data Testing Tool

Google gives an any website testing feature.If your website contains errors it shows right hand side of the page.
How to test your website by Google Structured Data Testing Tool:
URL: https://developers.google.com/structured-data/testing-tool/
If you want to validate website first you logon using your Gmail credentials.
Enter your website URL in textbox and then press FETCH & VALIDATE button it validates your webpage and shows if there is any errors in your posts.