SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
Website Checker Tech - WebsiteChecker.Tech is SaaS tool that detects SEO and availability issues of your website, making it easier for you to fix them.
Advanced Web Ranking - Advanced Web Ranking (AWR) is a robust rank tracker, specially designed for large amounts of keywords, which makes it the ideal solution for agencies and medium-to-large in-house teams.
Netpeak Spider - A desktop tool for fast and comprehensive technical audit of the entire website.