SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
Cheateo - Create your own bots!
Lumar - (Previously DeepCrawl) Hosted SEO spider to analyze and find problems with websites.
ScrapeBox - ScrapeBox the Ultimate Link Harvester, Mass Wordpress and Movable Type Blog Comment Poster Complete with PR Storm Mode and Bulk Pagerank Checker.
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.