use case

A GEO checker tool: see if AI answer engines can use your page

the short answer

A GEO checker tests whether AI answer engines like ChatGPT, Perplexity, and Google's AI overviews can crawl, parse, and cite your page; seo·check scores exactly that — JSON-LD structured data, an llms.txt file, and AI-crawler access in robots.txt — for free from a URL.

Classic SEO checkers tell you how you look to Google's traditional index. They say nothing about the newer audience: the AI answer engines that read pages, summarise them, and cite a handful in their answers. Optimising for that is GEO — generative engine optimization — and it has its own, mostly invisible, checklist.

seo·check is a GEO checker for exactly that checklist. Paste a URL and it scores whether AI engines can reach your page, understand it, and have the structured signals they prefer to cite. This page covers what a GEO checker looks for and why it's separate from classic SEO.

4 botsAI-crawler rules checked: GPTBot, ClaudeBot, PerplexityBot, Google-Extended

What GEO readiness actually means

An AI engine can only cite a page it can reach, parse, and trust. seo·check checks the reach first: does robots.txt allow the AI crawlers — GPTBot for ChatGPT, ClaudeBot for Claude, PerplexityBot for Perplexity, and Google-Extended for Google's AI surfaces — or is a blanket rule quietly blocking them. A page that's invisible to the crawler can't be cited no matter how good it is.

Then it checks parseability and signals: JSON-LD structured data that tells the engine what the page is (an article, a product, a FAQ), and an llms.txt file that points AI agents at the content you want them to use. Together these are the difference between a page an engine can guess at and one it can read with confidence.

Why a separate tool from classic SEO

Classic on-page SEO and GEO overlap but aren't the same. A page can have a perfect title tag and clean meta description — great for the blue links — while blocking GPTBot in robots.txt and shipping zero structured data, leaving it effectively invisible to AI answers. The two checklists fail independently.

seo·check runs both and scores them separately, so you can see at a glance whether a page is winning on search, on AI answers, on both, or on neither. The GEO score is the part most tools skip, and it's increasingly where the traffic question is being decided.

Classic SEO check vs. GEO check

Classic SEO checkGEO check (seo·check)
AudienceSearch index / blue linksAI answer engines
Crawler accessGooglebot in robots.txtGPTBot, ClaudeBot, PerplexityBot, Google-Extended
Structured signalsSchema for rich resultsJSON-LD + llms.txt for AI parsing
What you optimise forRanking positionBeing cited in an answer
Often skipped byMost legacy SEO tools

frequently asked

What is GEO, and how is it different from SEO?
GEO is generative engine optimization — getting your page cited by AI answer engines like ChatGPT and Perplexity, rather than just ranked in classic search. seo·check scores both, separately, because a page can pass one and fail the other.
Which AI crawlers does seo·check check for?
It checks your robots.txt for the main AI crawlers — GPTBot (ChatGPT), ClaudeBot (Claude), PerplexityBot (Perplexity), and Google-Extended (Google's AI surfaces) — and flags whether each is allowed or blocked.
Does a good GEO score guarantee I'll be cited?
No. GEO readiness removes the blockers and adds the signals AI engines prefer, but no checker can guarantee a citation. seo·check tells you whether your page is eligible and well-formed, not whether a given engine will pick it.
Is the GEO check free?
Yes. The GEO score is part of the free report — no account, no paid tier.

Published April 22, 2026 · Last updated June 13, 2026

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