Ahrefs

Ahrefs is a leading SEO and digital marketing toolset trusted by over 12,000 marketing agencies and used by SEO professionals at companies like Facebook, Adobe, LinkedIn, and Netflix. Founded in 2011, Ahrefs built the second-largest known web crawler (after Google), indexing over 8 billion pages daily.

Ahrefs is uniquely positioned with the highest quality backlink data in the industry, making it the go-to tool for link building, competitive analysis, and content gap research.

Core Tools

• Site Explorer — Analyze any website's organic traffic and backlink profile
• Keywords Explorer — Discover keywords with accurate search volumes and difficulty scores
• Site Audit — Crawl your website and identify technical SEO issues
• Rank Tracker — Monitor your keyword rankings over time
• Content Explorer — Find the most popular content in any niche
• Backlink Checker — See who links to any website or URL

Ahrefs offers plans starting at Lite ($99/month), Standard ($199/month), Advanced ($399/month), and custom Enterprise plans.