What exactly is llms.txt?

An AI-era robots.txt that tells AI models about your site's core content and policies. Located at /llms.txt or /llms-full.txt — increasingly important for AEO.

What are GPTBot and ClaudeBot?

Web crawlers from OpenAI (ChatGPT) and Anthropic (Claude). If your robots.txt blocks them, those AIs cannot cite your site.

My AEO score is low — how do I raise it?

Fix the lowest-scoring items first: add llms.txt, allow AI crawlers, add FAQPage and HowTo JSON-LD, and include author/date metadata. Pages built with Nadoo AI Website Builder include these SEO/AEO basics by default.

How do I use the results?

This checker is page-level only. For a full site, Nadoo AI Website Builder manages SEO/AEO defaults and multilingual structure as part of the website.

Can I scan a whole site at once?

Full-site monitoring belongs with the site structure and defaults created through Nadoo AI Website Builder, not as a separate SEO/AEO offering.

AEO Checker

Free AEO Checker

Name: Free AEO Checker — Test if AI Search Engines Will Cite Your Site
Availability: InStock
Author: Nadoo

Enter a URL and we'll score how well it surfaces in ChatGPT, Perplexity, and Google SGE — from llms.txt to AI crawler permissions.

AEO score in 60 seconds

Enter URL

Paste the page URL. We recommend a specific page, not the whole site.

Score + per-item diagnosis

A 0–100 AEO score with each check clearly marked by status.

Apply the improvement guide

Each item explains exactly what to fix — re-test after.

AI-search era essentials

From llms.txt to GPTBot rules
full AEO coverage

Catches what classic SEO tools miss — llms.txt, AI crawler permissions in robots.txt, JSON-LD richness, E-E-A-T signals — purpose-built for AI search.

Citability analysis

Is your content actually
citable by ChatGPT?

Checks for definitional sentences, short factual statements, tables, and definition lists — the patterns LLMs prefer when quoting sources.

Frequently asked questions

SEO optimizes for Google search rankings; AEO optimizes for citation by answer engines like ChatGPT, Perplexity, and Google SGE. They overlap, but AEO has unique items: llms.txt, AI crawler permissions, JSON-LD richness.

Start with a website prepared
for search and AI answers

Nadoo AI Website Builder creates pages with SEO/AEO basics already wired in: llms.txt, multilingual JSON-LD, AI crawler access and metadata.

Build a website with AI See AI Website Builder

Feature	This free tool	Nadoo AI Website Builder
AEO score diagnosis	✓	✓ Continuous monitoring
Auto-generate llms.txt	—	✓
Auto JSON-LD insertion	—	✓ Per page type
Multilingual auto-apply	—	✓ 15 languages
Periodic monitoring	—	✓ With alerts