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.
SEO Analyzer By Neil Patel - A free SEO analyzer for your site
Plerdy - Plerdy is a comprehensive conversation rate optimization software that caters to professional online marketers and agencies, allow them to enhance website performance and increase revenue greatly.
Serpstat - Search analytics, Rank tracking, Backlink analysis and Site Audit tool.
Analyzz - The fast & visual way to understand your users.
Serpstat Website SEO Checker - Check your website's SEO, analyze competitors and keywords