Nibbler, a Free Web Assessment Tool Described as a free tool for testing websites, Nibbler examines your website and determines its scoring based on 10 key areas spanning accessibility, SEO, social media and technology. Limited to three reports, Nibbler is free to use.
If Nibbler is not enough, the professional option is Silktide Insights. Silktide Insights offers website comprehensive reports, 32 individual tests including extras like Spelling, Search ranking, Broken links,100+ webpages page limit, export results and support. Insights also tests website, speed, SEO and social media.