Overview

Ahrefs is a web-based SEO and marketing platform made by Ahrefs, a company founded in 2010 and headquartered in Singapore. Its core tools cover keyword research, rank tracking, site audits, backlink analysis, and competitor research, with API access for programmatic use. The freemium setup includes a free plan for site data and fixes, while paid plans start at $29.00 USD per month.

Ahrefs says its web index contains 170 trillion pages, tracks 41.9 billion keywords, and filters 28.7 billion keywords. Its AhrefsBot crawls 8 billion pages daily. These are figures describing the service’s data infrastructure; what an individual user can do also depends on plan limits for projects, tracked keywords, and crawl credits.

The platform also includes AI assistants and MCP access. Content Explorer helps find web mentions and potential link prospects, while AI Content Helper is designed to improve content. Ahrefs offers native integration, Looker Studio integration, and connections to AI chatbots.

Key features

SEO research and monitoring

Keyword research and competitor research help users investigate search demand and the competitive landscape. Rank tracking monitors selected keywords, while backlink analysis focuses on links pointing to sites. Site Audit checks a site for issues and fixes; crawl allowances and project limits vary by plan.

Content and AI tools

Content Explorer can surface mentions across the web and identify link prospects. AI Content Helper supports content improvement. Ask Ahrefs, an AI feature, is free during beta for Lite+ plans. Separate prompt packages provide defined monthly check allowances and per-check overage rates.

API and team administration

API access supports programmatic use. Enterprise adds SSO, two-factor authentication, and ISO27001 certification, along with access management, audit logs, and unlimited additional users. Multilingual customer support is available five days a week; the stated median first response time is 5:58 minutes.

Pricing

Ahrefs has a free plan and several paid subscriptions. Annual payment saves up to 17%, though the listed monthly prices below are billed monthly unless noted otherwise.

Plan	Price	Included limits or notes
Ahrefs Free	0.00 USD per free	Site data and fixes, with limited access to Site Explorer and Site Audit.
Starter	29.00 USD per month	Keyword and competitor research.
Lite	129.00 USD per month	5 projects, 750 tracked keywords, 100,000 crawl credits per month, and 1 included user. Two more users can be added at $40/mo each.
Standard	249.00 USD per month	20 projects, 2,000 tracked keywords, 500,000 crawl credits per month, and 1 included user. Five more users can be added at $60/mo each.
Advanced	449.00 USD per month	50 projects, 5,000 tracked keywords, 1,500,000 crawl credits per month, and 1 included user. Ten more users can be added at $80/mo each.
Enterprise	1499.00 USD per month	Annual commitment required; from 3 included users, from 10,000 tracked keywords, from 5,000,000 crawl credits per month, and unlimited historical data.

Site Audit lists 100,000 crawl credits and a 25,000-page project maximum for Lite. Prompt packages are separate: Basic is $50.00 USD per month for 2,500 checks/mo, with $0.020/check overage; Growth is $100.00 USD per month for 7,000 checks/mo, with $0.015/check overage; Scale is $250.00 USD per month for 25,000 checks/mo, with $0.010/check overage. Brand Radar starts at $199.00 USD per month for AI research and prompt tracking. No trial or refund policy is stated.

Platforms

Ahrefs is available on the web and through an API. Its platform also includes AI assistants and MCP access. Integrations include native Ahrefs integration, Looker Studio, and connections to AI chatbots.

Who it's for

Ahrefs suits people who need a combined set of SEO research and monitoring tools: site owners, content teams, and marketing professionals can use its keyword, competitor, rank, audit, and backlink features. Its API and Enterprise administration options also address programmatic workflows and larger teams. The free plan offers a limited way to access site data and audit tools, while the paid plans set increasingly higher project, keyword, and crawl allowances.

Readers comparing options can browse SEO tools, Competitor SEO Tools, SEO Analytics Software, SEO Reporting Software, Backlink Analysis Tools, and SEO Content Optimization Software.

Pros and cons

Pros

Broad coverage across keyword and competitor research, rank tracking, audits, and backlink analysis.
A free plan provides site data and fixes, with limited Site Explorer and Site Audit access.
API access, AI features, and integrations with Looker Studio and AI chatbots extend its uses.
Enterprise includes security and team administration features, including SSO, two-factor authentication, ISO27001 certification, access management, and audit logs.

Cons

Free access is limited, and the more extensive paid plans cost substantially more than the entry-level Starter price.
Project, tracked-keyword, and crawl-credit allowances are plan-dependent, so users need to match limits to their workload.
Ask Ahrefs is described as a beta feature, and prompt packages carry separate charges.
No trial or refund policy is stated.

Alternatives

For a different mix of SEO tools, consider Semrush, SpyFu, or Moz Pro. Site auditing needs may also lead to Screaming Frog SEO Spider, while Google Search Console is another option for site search data. For content work, compare Frase and Rank Math SEO; DefiniteSEO is another SEO alternative.

Verdict

Ahrefs brings research, rank monitoring, site auditing, backlink analysis, content tools, and API access into one platform. Its free plan can cover limited site-data and fix workflows, while paid subscriptions scale project counts, keyword tracking, and crawl credits. The main decision is whether those limits and the relevant subscription price fit the size of the work; teams that need enterprise access controls or high allowances have a higher-priced plan, and AI prompt tracking may add a separate package cost.

	Ahrefs	Crawlr
Free plan	Yes	Yes
Free trial	No	No
Paid from	$29/mo	$8/mo
Open source	No	No
Platforms	api, Web	api, Web
Free plan	Yes	Yes
Paid from	$29/mo	$8/mo
Keyword research	Yes	—
Rank tracking	Yes	—
Site audit	Yes	—
Backlink analysis	Yes	—
Competitor research	Yes	—
API access	Yes	Yes
Tracked keywords	750 keywords	—

Ahrefs vs Crawlr

Ahrefs

Crawlr