CheckON: AI · SEO · AEO · GEO Checker

See how AI reads your shop's website in one click. Scores for search (SEO), AI answers (AEO), AI citations (GEO) — and what to fix.

See how AI actually reads your shop's website — in one click. ■ What AI understood about your shop Only what ChatGPT, Perplexity, Gemini or Claude could really read from this page: name, category, address, phone, opening hours, linked maps and social pages. A blank means the AI doesn't know it either. ■ Three scores - SEO — does it show up in search? (title, description, H1, mobile, HTTPS, robots, sitemap, image alt, Google / Bing / Naver crawlers blocked or not) - AEO — will AI use it in an answer? (LocalBusiness / FAQ structured data — JSON-LD or Microdata, language tag, encoding, amount of text) - GEO — will AI cite it as a source? (AI answer bots blocked or not, tags that opt out of Copilot answers, Google Maps / local portals / social links, languages, llms.txt as optional) ■ What to fix Right now / Next / When you have time — every item in plain words with a “why” link (official Google, Bing and Naver guidelines, the OpenAI / Anthropic / Perplexity crawler pages, schema.org). ■ One-page report · PDF One button under the scores opens the report. Page 1: what people see (a capture of the tab) on the left, the exact text AI and search bots receive on the right (broken characters in red), then the facts the AI could read and the fixes with “+N pts when fixed”. Page 2 onwards: every issue, one by one — why it matters, how to fix it, who can do it (owner / web agency) and how long it takes. Plus how the score changed since your last check. Save as PDF from Chrome's print dialog and hand it to your staff or web agency. ■ What makes it different Tools that only count “readable characters” give a legacy-encoded page (EUC-KR, Shift_JIS, Big5…) a 99% while actually reading garbage. CheckON first checks whether the name, address and phone were really read — and shows you the exact text a UTF-8 crawler receives. Every deduction is tied to an official document. For example, OpenAI and Anthropic state that blocking their training crawlers (GPTBot, ClaudeBot) is separate from appearing in their answers — so CheckON doesn't penalize it. ■ Privacy Every check runs inside your browser. Page content is never sent to any server. From the site you are checking, CheckON reads robots.txt, llms.txt, sitemap.xml and the page itself once more (no cookies, that site only) for the “what the AI receives” preview. Results live only in the popup and the report tab (held briefly in browser memory when you open the report; gone when the browser closes). 한국어 · 日本語 · 繁體中文 · 简体中文 · English — follows your browser language.