SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
Screaming Frog - Screaming Frog is search engine marketing agency offering search engine optimisation and pay-per-click advertising services.
SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
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.
SEOmator - SEO website analysis & audit tool
SiteAnalyzer - SiteAnalyzer it's a desktop Crawler, designed to SEO audit and analyze website content to identify technical and SEO-optimization errors. After scanning your website, SiteAnalyzer will display all the technical and SEO errors and help to fix them!