Ahrefs

Ahrefs builds an all-in-one SEO and marketing platform trusted by marketers at 44% of Fortune 500 companies. The company operates the world's second-most active web crawler and maintains one of the largest databases of live backlinks and keywords. Ahrefs provides tools for competitive intelligence, content marketing, rank tracking, and AI search visibility monitoring, backed by in-house infrastructure that powers custom LLMs and AI-enhanced data processing.