Ahrefs Backlink Checker - With the world's biggest index of live backlinks (over 15 trillion), Ahrefs Backlink Checker will show you the most complete backlink profile for any website.
RobinGupta Bulk Domain Authority Checker - Free tool to bulk check domain authority, Page Authority, Spam score & IP Address.
Backlinks by Neil Patel - A backlinks research tool for competitive intelligence
Toxic Backlink Checker - Find out what's lurking in your backlink profile.
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.
SmallSEOTools Keyword Rank Checker - Use our free keyword rank checker tool to track keywords position for website. Enter Keywords and Url and see keyword position checker report instantly.