Semrush
SEO and marketing suite with keyword research, backlink data, site audits, rank tracking and competitor analysis.
- Free plan or free version
- Developer API
- Writes or rewrites content with AI
About Ahrefs
SEO toolset built around a large backlink index, with keyword research, site audits and rank tracking.
Ahrefs is an SEO toolset known first for its backlink index, which shows the links pointing at any site and how they change over time. Around that it offers Site Explorer for traffic and keyword estimates per domain, Keywords Explorer, a site audit crawler and rank tracking.
SEOs use it to study why a competitor's page ranks, to find link prospects and broken links, and to plan topics from the keywords other sites rank for. Ahrefs Webmaster Tools is a free tier for verified site owners that covers audits and the links to your own site, and the SEO Toolbar is a browser extension for checks on the page you are viewing.
Traffic figures are modeled estimates. Use them to compare sites and spot trends, and check your own analytics for real numbers.
Details
Free plan or free version
YesDeveloper API
YesChrome extension
Yes
Not enough info yet on writes or rewrites content with AI, wordPress plugin, local SEO features. Check the tool's own site.
Listing written by SEO Opinion, checked 2026-11-03. Report a correction or request removal. Back to all-in-one seo suites.