Ahrefs is the best SEO tool for backlink research and competitive analysis. Its backlink database is the largest and most frequently updated of any tool we tested — crawling 8 billion pages per day. The Site Explorer, Keywords Explorer, and Content Explorer are all best-in-class. The main limitation is price: Ahrefs Lite starts at $129/month and the team plan is $449/month. For freelancers and small agencies, the price is painful but the data quality justifies it for serious SEO work.
- Largest and most accurate backlink database — 35 trillion links indexed
- Site Explorer gives the most complete competitor backlink picture
- Keywords Explorer has accurate search volume and difficulty scores
- Content Explorer finds top-performing content in any niche
- Expensive — $129/mo minimum with no free trial
- Keyword database smaller than SEMrush in some non-English markets
- No PPC or paid search data
- Limited white-label reporting
Ahrefs Review: Features & Performance
Ahrefs has the best backlink index in the industry and unmatched keyword research data. Used by SEO teams at some of the worlds largest companies.
Pros
- Largest and most accurate backlink database — 35 trillion links indexed
- Site Explorer gives the most complete competitor backlink picture
- Keywords Explorer has accurate search volume and difficulty scores
- Content Explorer finds top-performing content in any niche
- Rank tracker with daily updates
- Regular feature releases — team ships constantly
- Best-in-class broken link checker
Cons
- Expensive — $129/mo minimum with no free trial
- Keyword database smaller than SEMrush in some non-English markets
- No PPC or paid search data
- Limited white-label reporting
- API access requires Enterprise plan
Our verdict
Ahrefs is the best SEO tool for backlink research and competitive analysis. Its backlink database is the largest and most frequently updated of any tool we tested — crawling 8 billion pages per day. The Site Explorer, Keywords Explorer, and Content Explorer are all best-in-class. The main limitation is price: Ahrefs Lite starts at $129/month and the team plan is $449/month. For freelancers and small agencies, the price is painful but the data quality justifies it for serious SEO work.
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