Google has been mentioning over and over the importance of not blocking resources and various content from Google crawlers in order to get the best SEO ranking. See Googlebot now has the ability to render your webpage in much the same way a modern browser would – and as such it uses your CSS structure, reads your JS scripts, and uses everything to determine the optimal rankings for your site.
In an effort to make things even easier for webmasters Google has introduced a Blocked Resources Report which well … gives you a report of blocked resources. This report starts with the names of the hosts from which your site is using blocked resources such as JavaScript, CSS, and image files. Clicking on the rows gives you the list of blocked resources and then the pages that embed them, guiding you through the steps to diagnose and resolve how we’re able to crawl and index the page’s content.
