SEO Analyzer By Neil Patel - A free SEO analyzer for your site
SiteCheckerTool.com - Website Analytics & Tools
Serpstat - Search analytics, Rank tracking, Backlink analysis and Site Audit tool.
SEO PowerSuite - Get all SEO tools in one pack - download free edition of SEO PowerSuite and get top 10 rankings for your site on Google and other search engines!
Serpstat Website SEO Checker - Check your website's SEO, analyze competitors and keywords
A1 Website Analyzer - Analyze websites and save data into XML, CSV etc. Extract data about internal linking and importance calculations, file sizes, download times, HTML validation errors etc. across entire websites.