SEOQuake is a powerful SEO toolbox for your browser, which allows you to check any web page for a huge selection of SEO parameters with the free browser extension from SEOQuake. You can conduct an on-page SEO audit in a flash and examine internal as well as external links. Compare domains and URLs in real-time and also export all data on a file. SEOQuake is presently available for Firefox and Opera. Thousands of people are using SEOQuake and there is no reason why you shouldn’t try it for yourself.
Even more, SEOQuake is better than ever now. With API integrations with SEMrush, SEOQuake’s powerful toolbox just created a sonic boom.
Check it out: http://www.seoquake.com/