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.
Website Grader - Grade your website's strengths and weaknesses in seconds.
Backlinks by Neil Patel - A backlinks research tool for competitive intelligence
Textalyzer - Analyze text readability and SEO parameters
Toxic Backlink Checker - Find out what's lurking in your backlink profile.
Smaller - Make your websites load faster