Semrush
Free tierThe leading platform to grow and measure brand visibility across every digital channel
Free tier available·All audiences·API available
Key strengths
Industry's largest backlink database with 43 trillion linksUnified SEO + AI visibility tracking across LLMs like ChatGPT28 billion keyword database across 142 geo databasesEnd-to-end marketing suite: SEO, content, ads, social, PR, and localEnterprise-grade competitive intelligence and market analytics
Free tier + paid plans
Boston, USA
Founded 2008
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- Programmatic SEO data pipelines — Use the Semrush API to pull keyword rankings, backlink profiles, and domain analytics at scale into your own data warehouse or BI dashboards.
- Automated site auditing — Schedule and retrieve technical SEO audit results via API to integrate health checks into CI/CD pipelines or internal reporting tools.
- AI visibility monitoring — Leverage the AI Visibility Toolkit and 261M+ tracked LLM prompts to measure brand citation share-of-voice in ChatGPT, Perplexity, and other AI engines programmatically.
- Competitive intelligence enrichment — Pull competitor traffic estimates, keyword overlaps, and ad data into CRM or sales intelligence platforms to inform go-to-market strategies.
- Content workflow automation — Integrate Semrush content scoring and keyword data into CMS workflows (e.g., WordPress, Contentful) to automate SEO checks at the time of publishing.
- LLM-native app development — Embed Semrush search data directly into AI-powered apps via the Lovable integration or ChatGPT plugin, enabling real-time SEO insights inside LLM interfaces.