MarketMuse

MarketMuse analyzes a site's content to show which topics it covers well and where gaps remain. Content strategists use it to plan clusters, prioritize updates and write briefs, and it is now part of Siteimprove.

The platform models how thoroughly your pages cover a subject compared with competitors, then scores difficulty and opportunity per topic. Optimize and Research views give writers related terms and questions for each piece.

Since the Siteimprove acquisition, MarketMuse also powers Siteimprove's SEO Intelligence Suite, which adds accessibility, analytics and paid keyword data for enterprise teams.