SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
Topvisor - All in one SEO and PPC tools for better marketing.
SEOmator - SEO website analysis & audit tool
Lumar - (Previously DeepCrawl) Hosted SEO spider to analyze and find problems with websites.
Botify - Traffic Managers, SEO Managers, Webmasters:Crawl your site to extract all of its metadata and identify areas for improvement
SEOquake - SEOquake provides a browser extension to conduct on-page SEO audit.