Semrush is a SaaS platform that provides integrated tools for search engine optimization, paid search, content marketing, social media management, and competitive intelligence. It collects and correlates large-scale web and SERP data to deliver keyword research, backlink analysis, site audits, rank tracking, and market insights. Semrush helps marketing teams discover growth opportunities, optimize content and ad campaigns, monitor competitors and backlinks, and generate data-driven reports. The platform combines automated crawling, large keyword and domain databases, specialized toolkits, and reporting templates to streamline digital marketing workflows and decision-making.