Tools

Website Grader is a free online tool that grades your site against key metrics like performance, mobile readiness, SEO, and security.

Google Analytics lets you measure your advertising ROI as well as track your Flash, video, and social networking sites and applications.

SEMrush is a powerful and versatile competitive intelligence suite for online marketing, from SEO and PPC to social media and video advertising research. | SEMrush English

Today search engine optimization greatly depends on quality of inbound links to increase your serp rank and ultimately increase affiliate or ppc adsense,ypn revenue. Backlink Watch greatly helps you to know every bit about your inbound links. It includes anchor text, pagerank, quality of backlinks by finding total outbound links any restriction of nofollow tag.