Lumi GEO
FREN

Chrome extension

See any page as AIs see it

What AI crawlers really read, what they miss, and the code to fix it.

Watch the demo

Soon on the Chrome Web Store

  • 5 free analyses/day
  • No account
  • Nothing sent

Hi, I’m Lumi!

A bakery’s web page where three product descriptions and the FAQ are hatched in red and labeled “Invisible to AI crawlers”. On the right, the Lumi GEO side panel: AI view, grade D, 52/100, only 30% of the text can be read without JavaScript.
The real extension, on a fictional demo site.

Demo · 26 seconds

Lumi at work, from click to code

One full analysis of a fictional demo site: the robot view right on the page, the score, then the code to copy.

Animation made from the real extension and the real results of its analysis of the demo site.
Read what the video shows
  1. Lumi waves and asks: “What do AIs really see on this page?”
  2. On the bakery demo site, a click on the Lumi GEO icon opens the side panel. Lumi starts the analysis and ticks each step: reading the page, looking at it like an AI crawler, checking robots.txt, working out the score.
  3. “Show on the page”: the texts that AI crawlers cannot read without JavaScript are hatched in red, 8 areas in all, while Lumi’s beam sweeps across the page.
  4. The score: 74/100, grade C, then the 4 pillars: SEO 89, GEO 75, AEO 78 and AI view 52.
  5. The top priorities, with the points each fix is worth. In the Code tab, the FAQ structured data is copied and the matching priority gets ticked.
  6. End: Lumi GEO, “Your page as AIs see it.”, a free Chrome extension.

The problem

Most AI crawlers don’t run JavaScript

They only read the HTML sent by the server. Whatever a site adds afterwards with JavaScript does not exist for them: they can’t understand it, so they can’t cite it.

  • Product texts, FAQs, reviews loaded by JavaScript: often invisible.
  • Sometimes even the title, the description or the structured data.
  • A page can look perfect in your browser and almost empty to them.

That’s where I come in: I read the page like they do, then I show you what they miss.

What you see

Title and introduction

Products

FAQ

What an AI crawler reads

Title and introduction

ProductsInvisible

FAQInvisible

On the fictional demo site shown on this page, 70% of the text only appears after JavaScript runs.

How it works

Three steps, right in Chrome

No account, no setup: Lumi GEO works on the page you are looking at.

I tell you each step as I go: no black box.

  1. Click the Lumi GEO icon

    On any page, in Chrome. The side panel opens for this tab only, then you start the analysis.

  2. Lumi reads the page

    Like an AI crawler: the raw HTML, robots.txt and the structured data. About three seconds.

  3. Fix what matters first

    A score out of 100, the priorities with the points they are worth, and the code to copy.

Robot view

See the invisible, right on the page

Lumi GEO downloads the raw HTML of the page and compares it with the page on your screen.

  • The share of the text that is invisible to AI crawlers.
  • Key elements added by JavaScript: title, description, H1, structured data, links.
  • “Show on the page”: invisible areas are hatched right on the site, and Lumi walks you through them one by one.

Look at the page: I’m lighting up what AI crawlers can’t see.

Nos pains du jour

Grand levain de la dune

✕ Invisible to AI crawlers

Farine T80 bio, levain de 12 ans, 24 h de fermentation.

Croissant pur beurre

✕ Invisible to AI crawlers

Beurre AOP, feuilletage maison sur trois jours.

Questions fréquentes

✕ Invisible to AI crawlers

Quels sont vos horaires d’ouverture ?

✕ Invisible to AI crawlers

Du mardi au dimanche, de 6 h 30 à 19 h 30.

AI robot view

The hatched areas are invisible to AI crawlers: 70% of the text of the page.

Area 1 of 8

“Show on the page” on the fictional demo site: the hatched texts only appear after JavaScript runs.

The score

A score out of 100, in 4 pillars

Each problem fits on one line, with what fixing it is worth. One click opens it: what it means, how to fix it, and the code to copy.

SEO
Indexing, title, meta description, canonical, headings, images, Open Graph…
GEO
JSON-LD structured data, brand identity, author and date, AI crawler access, citable passages.
AEO
Direct answer, questions and answers, readability, lists and tables.
AI view
What stays visible without JavaScript.

Good foundation, but 70% of the text is invisible to AIs.

FairOverall score: 74/100, grade C

  • SEO89 · Good
  • GEO75 · Good
  • AEO78 · Good
  • AI view52 · Weak

Top priorities

  1. Make the content visible without JavaScriptAI view · Blocking+12 pts
  2. Describe the FAQ to the AIsAEO · Blocking+6 pts
  3. Introduce the brand to the AIsGEO · Blocking+3 pts
Real analysis of the fictional demo site shown on this page.

AI crawlers

Who can read the site? 14 AI crawlers checked

For each AI crawler (search, on-demand browsing, training), Lumi GEO tells you whether it can read the site and the page, with the exact robots.txt line that decides.

Blocking training crawlers is a legitimate editorial choice: it costs no points.

A blocked search crawler can’t cite the site. A blocked training crawler? That’s the site’s call.

robots.txt

User-agent: *Allow: / User-agent: GPTBotDisallow: / User-agent: PerplexityBotDisallow: /

AI search

  • OAI-SearchBot OpenAIAllowed
  • PerplexityBot PerplexityBlocked

    Line 8: “Disallow: /”. It cannot cite the site.

  • Claude-SearchBot AnthropicAllowed

On-demand browsing

  • ChatGPT-User OpenAIAllowed
  • Claude-User AnthropicAllowed

Training

  • GPTBot OpenAIBlocked

    An editorial choice: no points lost.

  • ClaudeBot AnthropicAllowed
Excerpt: 7 of the 14 crawlers checked on the fictional demo site.

Lumi reads the pagePro

What does an AI understand of the page?

With the AI built into Chrome (Gemini Nano), which runs on your computer:

  • what the AI understands of the page (topic, audience, summary);
  • the questions people ask that the page answers, and the ones it misses;
  • ask Lumi a question: she only answers with the content of the page.

An answer only counts if the quoted sentence really exists on the page: the AI cannot invent anything.

InfoRequires a compatible computer (requirements set by Chrome). Otherwise, everything else works normally.

Lumi reads the pagePro

Questions people ask

  • What are the opening hours?Covered
    « Du mardi au dimanche, de 6 h 30 à 19 h 30. »
  • Can I order a cake online?Missing

    The page does not answer it: an idea for the FAQ.

Illustration on the fictional demo site: real results depend on the page and on Chrome’s AI.

No quote, no answer. That’s my golden rule.

The code

The code to fix it, ready to copy

  • JSON-LD suited to the type of page (article, product, local business, home page…), with FAQPage.
  • An llms.txt template.
  • Nothing is invented: every value that cannot be found on the page is marked “TO COMPLETE”.

I never fill a blank with a guess: you’ll see “TO COMPLETE” instead.

JSON-LD · Organization

2 to complete

{  "@type": "Organization",  "name": "Boulangerie des Dunes",  "url": "https://boulangerie-des-dunes.example/",  "logo": "TO COMPLETE: logo URL (square image, 112 px minimum)",  "sameAs": [    "TO COMPLETE: URLs of the official profiles (LinkedIn, Facebook, Wikipedia…)"  ]}
Excerpt of the code generated for the fictional demo site: the name and the URL come from the page, the logo and the profiles do not, so they are left to complete.

Pricing

Free for the analysis, Pro for going further

No account, no trial that ends: 5 full analyses every day, for free.

Start for free. Pro is for analysing without counting, and for me to read the page for you.

Free

€0no account needed

  • 5 full analyses a day: 4 pillars and a score out of 100
  • The robot view, shown on the page
  • The 14 AI crawlers in robots.txt
  • The code to fix it (JSON-LD, llms.txt)
  • Re-analysing a page already analysed today: free. After that, new pages still show their score

Coming soon to the Chrome Web StoreLumi GEO will be on the Chrome Web Store very soon. Free to install as soon as it is out.

Lumi GEO ProPro

€4.99per month, planned price

  • Everything in Free
  • Unlimited analyses
  • Lumi reads the page with Chrome’s AI (compatible computer required)
  • Score tracking for each page
  • A PDF report, ready to send to a client or a team

Coming soonPro is not on sale yet. Until then, the Free plan has everything you need to get started.

Privacy

The analysis stays in your browser

No account, no server, no browsing data sent. This website keeps the same promise: no cookie, no analytics, no ads.

Read the privacy policy

I only look when you ask me to, and only at that tab.

  • Only when you click

    The analysis only starts when you click the icon, and only on that tab: no permanent access to websites.

  • Nothing collected

    No browsing data collected, no telemetry, no ads.

  • Kept on your computer

    Preferences, score history and the daily count of free analyses stay on your computer.

  • Pro: only the key

    Pro subscribers: only the license key is checked with Lemon Squeezy, the payment provider. No analysis result is ever sent.

FAQ

Frequently asked questions

Another question? Write to us

Ask away, I love questions. Especially the ones a page should answer!

Is Lumi GEO free?

Yes, up to 5 full analyses a day: the 4 pillars, the robot view, the AI crawlers and the code to fix it. Re-analysing a page already analysed today is free, and past 5 pages, new pages still show their score and their 4 pillars. Lumi GEO Pro (€4.99 per month, no commitment) adds unlimited analyses, Lumi reading the page with Chrome’s AI, score tracking for each page and the PDF report.

What are GEO and AEO?

GEO (generative engine optimization) helps generative AIs like ChatGPT, Perplexity, Claude or Gemini understand, trust and cite a page. AEO (answer engine optimization) is about giving clear, direct answers to the questions people ask. Lumi GEO checks both, along with classic SEO and what AI crawlers see without JavaScript.

Does a good score guarantee being cited by AIs?

No. The score is an indicator of Lumi GEO, not a Google or AI metric. It shows what helps AIs read and understand a page, and what to fix first; nobody can guarantee a citation.

Can I analyse any page, even a competitor’s?

Yes: any web page open in Chrome, yours or not. Chrome does not let extensions read its own pages (chrome://…) or the Chrome Web Store. Lumi GEO only reads the page you click on, when you click.

Is any of my data sent?

No browsing data is collected: the analysis runs entirely in your browser, with no telemetry and no ads. Pro subscribers: only the license key is checked with Lemon Squeezy, the payment provider. No analysis result is ever sent.

What computer does “Lumi reads the page” need?

It uses the AI built into Chrome (Gemini Nano), with requirements set by Chrome: Chrome 138 or newer on Windows, macOS or Linux, 22 GB of free space, and a graphics card with more than 4 GB of memory or 16 GB of RAM. The first time, Chrome downloads its model. On other computers, everything else in Lumi GEO works normally.

Does llms.txt get a site cited by AIs?

Not necessarily. llms.txt is a community proposal, not an official standard, and it does not guarantee being cited by AIs. Lumi GEO checks it as a bonus, without counting it in the score.

How does the Pro subscription work?

Pro is not on sale yet. It is planned at €4.99 per month, with no commitment, and will add unlimited analyses, Lumi reading the page, score tracking and the PDF report. The payment will be handled by Lemon Squeezy, the payment provider. Until then, the Free plan gives 5 full analyses a day.

Which browsers are supported?

Chrome 116 or newer on a computer, and Chromium browsers compatible with Chrome’s side panel. The interface is in English and French, following Chrome’s language.

I’m ready when you are!

Look at the web the way AIs do

One click on a page: the score, what AI crawlers miss, and the code to fix it. Free, 5 analyses a day.

See the plans

Coming soon to the Chrome Web StoreLumi GEO will be on the Chrome Web Store very soon. Free to install as soon as it is out.