# GEO Checker: AI Indexing & llms.txt Audit > Check GEO / AI indexing readiness. Audit llms.txt, robots AI bots, schema and meta, then copy a ChatGPT knowledge prompt. Canonical page: [https://chrome-stats.com/d/geo-checker](https://chrome-stats.com/d/geo-checker) ## Overview - **ID:** `geo-checker` - **Platform:** Firefox - **Type:** Firefox add-on - **Status:** Available - **Publisher:** Mobile Simulator (MSIM) - **Category:** web-development,privacy-security,search-tools - **Daily users:** 1 - **Version:** 1.5.0 - **Last updated:** 2026-08-05 - **First published:** 2026-07-20 - **Size:** 34 KB - **Data as of:** 2026-09-07 - **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/geo-checker/) - **Website:** [https://www.geochecker.app](https://www.geochecker.app/) ## Description GEO Checker: AI Indexing & llms.txt Audit Check if any website is ready for Generative Engine Optimization (GEO). Audit llms.txt, robots AI bots, sitemap, schema and meta, then copy a ChatGPT prompt to test what AI already knows about the brand. 🚀 Why Choose GEO Checker? AI assistants and generative search do not see your site the way classic crawlers do. GEO Checker turns your browser into a focused readiness suite so you can score the active tab, spot missing AI signals, and smoke-test brand knowledge in ChatGPT, Claude, or Perplexity in one flow. 📋 What GEO Checker Audits Stop guessing whether AI systems can understand your site. The checklist covers the signals that matter for GEO and AI indexing: 1) AI files: llms.txt and llms-full.txt presence, plus detection when a path is really an HTML SPA soft-404 instead of plain text or markdown. 2) robots.txt AI bots: GPTBot, ChatGPT-User, Google-Extended, ClaudeBot, PerplexityBot, and related AI crawler rules. 3) Discovery basics: sitemap.xml reachability and on-page indexability (noindex). 4) On-page structure: Schema.org JSON-LD, title and meta description, canonical URL, Open Graph. 5) Readiness score: one clear score from the checklist so you know what to fix first. 🔥 Top Professional Features Live Active-Tab Scan: Open any https site, click the icon, and get a fresh GEO checklist without leaving the page. SPA Fallback Detection: Catch fake 200 homepage HTML on /llms.txt, /robots.txt, and similar paths that break AI scanners. AI Knowledge Prompt Packs: One-click copy prompts for ChatGPT, Claude, and Perplexity with the domain, score, and gaps filled in. Rescan in One Click: Fix a file or meta tag, rescan the same tab, and confirm the score moved. Free Core Forever: Full checklist and prompt packs stay free. Optional "tools we recommend" links stay disclosed if enabled. 🛠 Built for Founders, SEOs & Agencies Whether you ship a product site, run technical SEO, or audit client domains for AI visibility, GEO Checker is a fast visual alternative to hand-checking robots, llms.txt, and schema in DevTools. It is a practical companion for modern Firefox workflows, not a slow full-site crawler. Install GEO Checker and make sure generative engines can actually understand your site. ## Rankings - #98,858 — Overall - #50 — ai grammar checker - #93 — ai spelling checker - #134 — ai spell checker ## Permissions and access ### Permissions - `activeTab` - `scripting` - `storage` ### Host permissions - `http://*/*` - `https://*/*` ## Safety - **Risk impact:** Moderate risk impact - **Risk likelihood:** High risk likelihood ### Analysis details - Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site. - This extension has low user count. Unpopular extensions may not be stable or safe. > Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing). ## Similar extensions and apps - [GEO Page Audit](https://chrome-stats.com/d/geo-page-audit) — 1 users, 5.00 / 5 - [LLMs.txt Compliance Inspector](https://chrome-stats.com/d/llms-txt-compliance-inspector) — 1 users - [Generative Engine Optimization (GEO) Scanner](https://chrome-stats.com/d/generative-engine-optimization) - [DiagnoSEO - On-Page SEO & GEO Checker](https://chrome-stats.com/d/diagnoseo-on-page-seo-checker) — 5 users - [BotScore](https://chrome-stats.com/d/botscore) — 1 users - [SEOFliq: AEO & GEO Suite](https://chrome-stats.com/d/seofliq-aeo-geo-suite) — 4 users - [Website Visibility Checker for AI](https://chrome-stats.com/d/website-ai-visibility) — 5 users - [Lift Audit](https://chrome-stats.com/d/lift-audit) — 1 users - [Vantage SEO and GEO Extension](https://chrome-stats.com/d/vantage-seo-and-geo-extension) — 2 users - [Web Assistant for AI](https://chrome-stats.com/d/web-assistant-for-ai) — 8 users - [AEO Advice](https://chrome-stats.com/d/aeo-advice) — 3 users - [AI Toolbox](https://chrome-stats.com/d/ai-toolbox) — 4,017 users, 4.68 / 5 --- Source: [Chrome-Stats](https://chrome-stats.com/d/geo-checker)