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.
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.
Whatsmyserp - Powerful Rank & Serp Tracking. Completely Free.
SmallSEOTools Domain Authority Checker - Domain Authority or DA PA Checker is a tool to Check website moz Domain Authority. Just enter your website url and see domain authority of any domain name.
Backlink Tool - A backlink tool to index your links quickly and freely.
RobinGupta Bulk Domain Authority Checker - Free tool to bulk check domain authority, Page Authority, Spam score & IP Address.