Best AI Tools for SEO
Keyword research, backlink analysis, rank tracking and content optimization.
Short answer
For SEO, the most-visited AI tool we track is Ahrefs, followed by Semrush and SE Ranking. Semrush has a free plan if you want to start without paying. The lowest paid entry price is Ahrefs at $29/mo (Starter). Ranked by real web traffic (Tranco), not by who pays.
Updated Oct 23, 2026 · Data: Tranco web traffic ranks, verified pricing
- 1
Ahrefs
Backlink analysis and keyword research platform for SEO pros.
#2,116 global trafficSubscription · $29/mo (Starter) - 2
Semrush
All-in-one SEO, PPC and competitive intelligence suite.
#2,271 global trafficFreemium · $139/mo (SEO)Free plan - 4
Surfer SEO
AI content optimization tool with real-time SERP analysis.
#25,937 global trafficSubscription · $59/mo (Discovery) - 5
Frase
AI SEO content research and brief generation tool.
#37,142 global trafficSubscription · $49/mo (Starter)
Frequently asked questions
What is the best AI tool for SEO?
For SEO, the most-visited AI tool we track is Ahrefs, followed by Semrush and SE Ranking.
Is there a free AI tool for SEO?
Yes. Semrush has a free plan or free tier.
What is the cheapest AI tool for SEO?
Among the tools we list, Ahrefs has the lowest paid plan at $29/mo (Starter).
All Marketing & SEO tools ranked →
Related: marketing copy