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.
Google SERP Snippet Optimization - SEOmofo tool replicates the appearance of a snippet in Google SERPs, which allows SEOs to optimize a page title and description for maximum click-through rate.
SmallSEOTools Google Cache Checker - Google Cache checker is an online tool to view cached pages, Enter any website URL to find when was the last time your web page was cached.
SiteChecker Google Cache Checker - Check the last date when website was cached by Google
PrePostSEO Bulk Alexa Rank Checker - Bulk Alexa Rank Checker - Check alexa ranks for multiple websites in just one click. Detailed domains ranking report.