Best SEO Tools For Free for 2026

Citare is the only AI search intelligence platform that ships a full Ahrefs-class SEO suite at every paid tier. Built for marketers, founders, and agencies tracking brand visibility across the new four-index reality: Google (AI Overview + Gemini), Bing (ChatGPT), Brave (Claude), and Perplexity's own crawl. ## What's included **AI search measurement (Brand Radar):** - Persona-anchored 50-cell weekly dispatches across all 5 AI engines - Citation rate, share of voice, competitive density per platform - Google AI Overview captured via vision-parsed screenshots (most competitors skip AIO entirely) - Claude tracked via Brave-grounded queries (also routinely skipped) **Traditional SEO suite (the Ahrefs class):** - Site Explorer — backlinks, referring domains, anchor distribution, broken backlinks, domain rating - Keywords Explorer — volume, keyword difficulty, CPC, related terms, country breakdowns - Rank Tracker — historical positions for your keywords + competitor pages - Site Audit — page-by-page crawl, structured data validation, AI-bot allowlist checks - Content Explorer — find top-performing content in your category - Bot Analytics — track which AI crawlers actually visit your site (GPTBot, ClaudeBot, PerplexityBot, etc.) - Web Analytics — first-party cookieless traffic, top pages, referrers - GSC Insights — pull Google Search Console data for any verified property **Developer surface:** - REST API at every paid tier - MCP server (Claude Desktop, Claude Code, Cursor, ChatGPT) at Pro tier and up - 23 free utility tools (LLM Quote Extractor, AEO Score Checker, llms.txt Validator, JSON-LD Inspector, Sitemap Health Checker, AI Robots.txt Checker, and more)