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.
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.
Serpstat Website SEO Checker - Check your website's SEO, analyze competitors and keywords
SiteAuditTool.com - Generate Website Audit Reports