Semrush

Semrush is a comprehensive online visibility platform that brings search, content, and competitive research into a single toolkit. It helps users find profitable keywords, track ranking positions, audit websites for technical issues, and study the backlink profiles of competing domains. Additional modules cover advertising research, content planning, and local and social media marketing.

The platform serves marketers, agencies, SEO professionals, and small businesses that want to understand how they perform against rivals and where to focus effort. Its competitive intelligence features let users estimate a competitor's traffic sources, top pages, and paid campaigns, turning that data into actionable strategy across channels.

Founded in 2008 and headquartered in Boston, Semrush operates as a publicly traded company and has expanded through acquisitions and AI-driven features. It uses a tiered subscription model with add-ons, positioning itself as a broad, enterprise-capable alternative to more narrowly focused SEO and marketing tools.