Semrush
SEO and market research suite with keyword, backlink, competitor, and AI search visibility data.
ResearchFreemium
SEO research platform known for backlink data, keyword explorer, site audits, and AI search brand tracking.
Overview
Ahrefs is an SEO research platform built on its own web crawler. It provides Site Explorer for backlink and organic traffic analysis of any domain, Keywords Explorer with volume and difficulty across search engines, Site Audit for technical issues, Rank Tracker, and Brand Radar for visibility in AI answers. SEO consultants, content teams, and ecommerce marketers use it to find link opportunities, understand competitor content, and prioritise pages to fix. A small business can verify its site in the free Webmaster Tools tier to get audits and backlink data at no cost, then move to the $29 Starter plan for limited keyword research. It integrates with Google Search Console, Google Analytics, WordPress, Looker Studio, and offers an API on higher plans. Paid plans use a monthly credit system, so heavy report usage on Lite can run out of credits before the month ends.
SEO content
Finding low-difficulty keywords and content gaps compared with competitors.
2-4 weeks to value · Medium effort · Medium risk · low
Market intelligence
Seeing which pages and keywords drive traffic to competitors and who links to them.
2-4 weeks to value · Medium effort · Medium risk · low
Web research
Validating search demand for new product categories before investing in pages.
1 week to value · Low effort · Medium risk · low
Verdict
Pays back on
Compare
SEO and market research suite with keyword, backlink, competitor, and AI search visibility data.
SEO platform with rank tracking, keyword research, site audits, local SEO, and AI content tools.
Budget SEO tool with keyword ideas, competitor traffic, site audits, rank tracking, and an AI writer.
Not paid placement. Verified means the listing passed our current editorial checks; it does not guarantee fit for every workflow.