Ahrefs

Want to analyze backlinks, find the right keywords and study your competitors with one of the most complete SEO suites on the market? Ahrefs gives you top-quality data on links, keywords, rankings and site health.

Ahrefs is an all-in-one SEO suite built around a huge backlink database, among the most up-to-date in the industry. With Site Explorer you analyze the link profile and organic traffic of any domain, including your competitors'; with Keywords Explorer you find keyword ideas with volumes, difficulty and SERP data; Site Audit scans your site for technical SEO issues; Rank Tracker monitors your keyword rankings over time; and Content Explorer helps you discover the best-performing content in a niche. It all runs on a credit system in the lower plans and on increasing limits of projects, tracked keywords and historical data as you move up tiers. Ahrefs also offers the free Ahrefs Webmaster Tools, which give limited access to Site Audit and Site Explorer for sites you verify ownership of.

For SEO specialists, agencies, marketers and publishers who need in-depth data on backlinks, keywords and competitors for their ranking strategies.

Ahrefs starts at $29 per month with the Starter plan (monthly only), then offers Lite at $129/month, Standard at $249, Advanced at $449 and Enterprise at $1,499 per month. Annual billing saves roughly 17%. There is no free trial, but Ahrefs Webmaster Tools are free for verified site owners.