Ahrefs vs FlexQueries

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.

FlexQueries is a pay-as-you-go SEO workspace for keyword, SERP, competitor, backlink, rank-tracking, site-audit, marketplace and AI-visibility research. Keyword Research expands a topic into search phrases for comparing demand, trends, difficulty and intent. Site Audit crawls page-level technical signals and can optionally run Lighthouse checks for performance, SEO, accessibility and best practices. AI Visibility tracks brand mentions, prompts, citations, Google AI Mode answers, source domains and web-mention trends. Marketplace research covers Apple App Store and Google Play listings, as well as Amazon keyword demand, ASIN rankings, competitors and product keyword gaps. A hosted Google Search Console MCP connects to Claude, Cursor, Codex and compatible AI clients; its Search Console tools are read-only. The versioned REST API supports scoped bearer keys, cost ceilings, idempotency keys and project-aware research, with no separate monthly API fee. It does not launch every dashboard feature: content generation and tracker or monitor setup still use dashboard or MCP tools. Pay-as-you-go has no subscription or monthly fee; credits start at $5 when added, and paid actions stop if the balance is insufficient.