The free GEO toolkit: 50 tools + 28 niche playbooks

Short version, for anyone who came for the list: 50 free tools, no signup, 28 niche playbooks, and one uncomfortable finding from running them at scale — the eSIM market leader scores a flat 0 on agent-readiness.

Every time someone asked me why Perplexity wasn’t mentioning their site, I found myself opening the same checks by hand — robots, schema, the no-JS view of the page — and at some point I noticed the checks were the answer, so we shipped them. We shipped a free, no-signup GEO toolkit: 50 tools plus 28 niche playbooks. AI answers are the new SERP — ChatGPT, Perplexity, Google AI Overview, and Gemini now answer directly, and the win is being cited as a source, not just ranked as a blue link. This toolkit covers the whole loop — diagnose → fix → get cited.

Diagnose

Start here, because a depressing number of “why aren’t we cited” stories end at this step, usually with a bot that was never let in or that saw an empty page.

1. How AI sees your page — the exact no-JS text an AI bot reads, whether it’s blocked, and if citation bots are allowed.
2. One-click GEO audit — run all the key checks on a URL at once → one scorecard (CSV/PDF export).
3. Rich-result eligibility — which Google rich results a page’s JSON-LD can win, by type.
4. Sitemap diff — what was added and removed between two sitemaps (over time or vs a competitor).
5. Viewport / mobile — viewport, theme-color and zoom-blocking for mobile-first.
6. GEO checker — a URL scored across the 11 GEO signals engines use to decide whether to cite you; shareable.
7. GEO score for a draft — score article TEXT for answer-readiness before you publish, in your browser.
8. GEO compare vs a competitor — a page against a competitor across the 11 GEO signals, signal by signal.
9. AI crawler access — which AI bots a robots.txt allows. A blocked citation bot means you can never be cited!
10. Cloaking detector — what’s served to Googlebot vs a normal browser: status, size, title.
11. SERP & social preview — the Google snippet + Open Graph card + title pixel-width and description length.
12. Social card preview — how a link looks on X, Facebook/Telegram and LinkedIn, rendered from Open Graph.
13. OG image inspector — the og:image’s real dimensions, weight and aspect ratio (ideal 1200×630, 1.91:1).
14. Heading structure — the H1–H6 outline and hierarchy errors: engines lift a section, not a wall of text.
15. Schema.org validator — JSON-LD against schema.org required fields (paste or URL).
16. robots.txt validator — lint for whole-site blocks, a missing Sitemap, and syntax.
17. llms.txt validator — check a site has a well-formed llms.txt.
18. Sitemap.xml audit — URL count, duplicates, lastmod, the 50k limit, a 200/404 spot-check.
19. Broken-link checker — the page’s links → each one’s status (404s), up to 25 per run.
20. Link profile / nofollow — internal/external links and rel attributes (nofollow, sponsored, ugc).
21. Redirect & canonical — the hop chain + the final page’s canonical: loops, long chains, http→https.
22. Response headers & TTFB — status, time-to-first-byte, Cache-Control, HSTS, compression.
23. Mixed-content — insecure http resources (scripts, images, styles) on an https page.
24. Image alt-text audit — across every <img>: missing, empty, too-long or filename alt.
25. Favicon & touch-icon — favicon, apple-touch-icon, web manifest and the /favicon.ico fallback.
26. Lang & charset — <html lang>, <meta charset>, viewport and doctype: the <head> essentials.
27. Thin-page finder — word count across a list of URLs → thin pages (under 300 words).
28. Duplicate titles/desc — shared titles and meta descriptions across a list of URLs (up to 10).
29. Hreflang / i18n — self-reference, x-default and reciprocity for multilingual sites.
30. Readability — Flesch reading ease and grade level (EN/RU).
31. Word count & reading time — words, characters, paragraphs and reading/speaking time (EN/RU).
32. Keyword density & entities — top terms and named entities, without stuffing.

Build & ship

Diagnosis without a fix is just a dashboard, so the second block builds the things the first block complained about:

33. Schema.org generator — valid JSON-LD for FAQPage and Article.
34. Author / E-E-A-T schema — a Person with knowsAbout, sameAs, credentials: the author-citation signal.
35. FAQ → FAQPage — turn a Q&A into valid markup, one of the most-cited formats in AI answers.
36. llms.txt generator — a curated index of a site for AI engines.
37. AI-friendly robots.txt — allow citation bots, optionally block training crawlers.
38. Open Graph / Twitter-card — meta tags for a clean share preview.
39. GEO-ready badge — an embeddable badge with a live re-check.

New in the kit (July 2026)

40. Agent-Readiness checker — can AI agents actually CONSUME your site: a 0–100 score across six machine-readability signals (llms.txt, llms-full.txt, structured data, author markup, sameAs, markdown alternates). Since Lighthouse shipped its “Agentic Browsing” audit, this is a discipline of its own.
41. Answer-capsule checker — does every H2/H3 open with a self-contained 40–75-word answer? Those capsules are exactly what AI engines lift; scored per section.
42. AI Visibility — are you cited? — domain + a few queries → whether Perplexity and Google AI Overview cite you, your share of voice, and who’s cited instead.
43. Google AI Overview checker — does a keyword trigger an AI Overview, and WHO does Google cite in it: the live sources of the AI answer + whether your domain made it.
44. Rank checker (Google & Bing) — the live position of a domain in the top-100 for a keyword, no personalization, plus the top-10 and an AI-Overview flag above the results.
45. Keyword volume checker — monthly searches, CPC and competition for any keyword + up to 10 related ideas.
46. Website traffic checker — an organic-traffic estimate for any domain: monthly visits, keyword count, top-10 share. Compare yourself against competitors.
47. Speed test (field CWV) — the Core Web Vitals of REAL Chrome users from Google’s CrUX dataset: LCP, INP, CLS with Google’s own verdicts.
48. Domain authority checker — Open PageRank scores 0–100 for up to 10 domains at once, sorted strongest-first.
49. Website technology checker — the CMS, e-commerce platform, framework, analytics and CDN via ~30 signatures.
50. AI visibility grader — one domain in, a 0–100 AI-visibility score out in ~60 seconds: whether AI engines cite you, whether they can access you, and how quotable your content is.

Bonus: the AI-friendly robots.txt generator learned ASCII headers — 5 styles (Matrix, terminal, robot, invader and a note-to-AI) with your brand in a box-drawing font, like our own robots.txt. Does a crawler care about ASCII art? Not in the slightest, but the humans who open the file do, and probably more of them open it than anyone would guess.

We also pointed the agent-readiness checker at whole niches and published the results as public GEO rankings — how AI-ready the top brands (eSIM, VPN, PM tools) really are. My hypothesis going in was that market leaders would likely lead here too, since they have the budgets and the teams; what came out, at least for eSIM, was the opposite, and honestly it took a second run to believe it. Spoiler: the eSIM market leader scores 0. Zero!

When free isn’t enough — PRO reports

So when does free stop being enough? Probably at the point where knowing WHAT’s wrong is no longer the bottleneck, and someone has to decide what to fix first. The free tools show what’s wrong; the paid reports add depth and ready fixes: the full GEO/SEO page audit with a prioritized fix list and a live citation check ($129), the AI-Visibility Report, the whole-site audit and more — the full catalog with pricing. Every paid audit now includes a free month of AI-visibility monitoring.

28 GEO playbooks by niche

The niche playbook hub gives a GEO playbook per industry — the niche’s real pains, the AI queries users ask, and a concrete checklist — because a clinic and a SaaS get cited for entirely different reasons, and a generic checklist often serves neither. There’s one for lawyers, clinics, e-commerce, SaaS, local business, real estate, fintech and travel, among others — 28 in total.

For the full method, read The complete GEO guide, and the deeper dives on what GEO is, llms.txt, and AI-citation tracking.

Fifty tools is a lot of tabs; I’d open the crawler-access one first, because nothing downstream matters if the bot never got in.