SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
Pro Rank Tracker - Rank tracking & reporting software solution
SEOmator - SEO website analysis & audit tool
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
AccuRanker - AccuRanker is a cloud-based rank tracking tool.
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!