Ahrefs vs SEOTesting

Ahrefs is a web and API platform for SEO research, including keyword research, rank tracking, site audits, backlink analysis and competitor research. It also provides content tools, AI assistants and MCP access. Content Explorer can find web mentions and link prospects, while AI Content Helper supports content improvement. The free plan provides site data and fixes with limited access to Site Explorer and Site Audit. Paid plans start with Starter at $29 a month. Lite costs $129 a month and includes five projects, 750 tracked keywords, 100,000 monthly crawl credits and one user; its Site Audit allowance has a 25,000-page project maximum. Annual payment saves up to 17%. Enterprise costs $1,499 a month and requires an annual commitment; it includes SSO, two-factor authentication, ISO27001 certification, access management, audit logs and unlimited additional users. Ahrefs says its web index contains 170 trillion pages, tracks 41.9 billion keywords and filters 28.7 billion keywords; AhrefsBot crawls 8 billion pages daily. Founded in 2010, the company is headquartered in Singapore. Multilingual support is available five days a week.

SEOTesting measures the impact of SEO changes using Google Search Console data, with Google Analytics data available when connected. Its tests include time-based experiments, comparisons between test and control groups, and LLM tests; they can cover individual pages, groups of pages, or URL switches, and track organic traffic and ranking impact. Reports address click-through-rate opportunities, content insights, Search Console data, keyword cannibalization, and monthly SEO summaries. The platform also identifies pages receiving clicks from AI search and offers tools to find prompt patterns and measure AI-driven visits. Website monitoring can alert teams to XML sitemap and robots.txt changes. Connections include Google Search Console, optional Google Analytics 4 and Bing Webmaster Tools, and a Looker Studio connector. An API, MCP server, and Chrome extension provide additional ways to use its data and checks. The 14-day free trial includes full functionality for up to 30 sites and requires no credit card. Paid plans start at $50 a month for Single Site.