Seolyzer - Seolyzer is the ultimate SEO tool that provides you with all the information you need to improve your website’s health and performance.
Netpeak Spider - A desktop tool for fast and comprehensive technical audit of the entire website.
SEOmator - SEO website analysis & audit tool
Checkbot - Checkbot will boost the SEO, speed and security of your site by checking you're following 50+ web best practices. Browser extension with free and paid plans.
Whatsmyserp - Powerful Rank & Serp Tracking. Completely Free.
SEO Crawler - A web-based crawler with real-time crawl feedback.