SEO Site Checkup - Find comprehensive search engine optimization (SEO) tools for your site.
SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
Majestic - Majestic - Link intelligence tools for SEO and Internet PR and Marketing. Site Explorer shows inbound link and site summary data.
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
Ahrefs - Ahrefs is a toolset for SEO and marketing. We have tools for backlink research, organic traffic research, keyword research, content marketing & more. Give Ahrefs a try!
SEO Analyzer By Neil Patel - A free SEO analyzer for your site