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.
PrePostSEO Domain Authority Checker - DA PA Checker (Domain Authority Checker) is developed to check bulk DA PA with spam score & IP Address for up to 500 URLs at once.
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.
Semrush Authority Score Explained - Find out how Semrush Authority Score may help you to get better at your link building efforts when looking for quality domains, and improving your own website‘s authority.
Backlink Tool - A backlink tool to index your links quickly and freely.
Seobility - Seobility allows you to quickly audit and review a website from an onsite SEO perspective.