SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
SerpWatch - Track your rankings with a fast and 100% accurate rank checker. Manage multiple locations and projects with full app integration. Try it for free for 15 days.
Lumar - (Previously DeepCrawl) Hosted SEO spider to analyze and find problems with websites.
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.
SEOmator - SEO website analysis & audit tool
Sitechecker - All-in-one SEO platform including rank tracker, website SEO audit tool and website changes monitoring. Detailed reports by 100+ parameters with how-to-fix guides.