What an llms.txt should actually do
Yoast is the best-known WordPress SEO plugin. They've added a basic llms.txt feature. In fact most SEO plugins now generate llms.txt - but they're just creating a list of links. We looked at what AI bots actually need to cite your business correctly.
We logged into Yoast with a test domain, and show the LLMs.txt that Yoast created on 5th May 2026. On the same day, we logged into EZY.ai and created the llms.txt for the same domain:
| Yoast.com | EZY.ai |
|---|---|
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We tested both files by asking Claude and ChatGPT to score Yoast and EZY.ai's LLMs.txt between 1 and 100 for AI optimization:
Yoast's file scored 42
EZY's scored 97.
The difference isn't just if the file exist, or even the format - it's what's in the format.
Digging deeper
Round 2: What Else Does AEO Need?
llms.txt is one file. Dense and structured AEO needs more:
| Yoast | EZY | |
|---|---|---|
| llms.txt | ✓ Basic URL list | ✓ Structured + enriched |
| llms-full.txt | ✗ | ✓ |
| Facts file | ✗ | ✓ |
| AEO-aware schema | ✗ | ✓ |
| FAQ schema for AI | ✗ | ✓ |
| AI visibility score | ✗ | ✓ |
Yoast generates one file. EZY ships the full AEO stack.
A complete AEO setup needs more than llms.txt. Here's what each piece does and why it matters:
llms.txt - the entry point AI engines read first. Tells them what your site is, what you offer, and which pages matter. EZY's version includes structured site context, business summaries, and page-level descriptions. Yoast's version is a list of URLs.
llms-full.txt - the deep version. Contains your actual content (or rich excerpts) so AI engines can quote you accurately without crawling every page. Without this, AI engines either hallucinate facts about your business or skip you entirely. Yoast doesn't generate this file at all.
Facts file (facts.json) - explicit, verified facts about your business. Founder names, founding date, product details, pricing, customer numbers. AI models heavily weight this kind of structured truth-data when deciding whether to cite you. Yoast doesn't generate this.
AEO-aware schema - schema markup that's been tuned for AI citation, not just Google rich snippets. EZY auto-deploys schema across every page on your site. Yoast offers basic schema as a paid feature.
FAQ schema for AI - FAQs structured so AI engines can pull individual questions and answers directly into ChatGPT or Claude responses. EZY generates these from your existing content. Yoast doesn't.
AI Visibility Score - a single number that tracks how findable you are across AI engines, updated weekly. EZY tracks this over time so you can see whether changes are working. Yoast has no equivalent.
Auto-deploy via Cloudflare - for non-WordPress sites, EZY deploys all of this via a Cloudflare Worker at the edge, with no code changes needed. Yoast is WordPress-only.
Round 3: Analytics
Yoast's analytics is an extended dashboard for Google Analytics. Yoast uses Google Search Console piped through their UI. Rankings, impressions, CTR. This is useful for traditional SEO, but not for tracking AI-referred users and AI crawlers.
Yoast and other SEO plugins do not track AI bots, AI users, AI prompts and AI-referred human traffic. EZY.ai tracks all of this:.
But here's what neither Yoast nor any traditional SEO plugin tracks:
- Which AI bots crawled your site (ChatGPT, Claude, Perplexity, Gemini, Bing) and which pages they hit
- Whether your site appears in actual AI prompts - we test your domain against real prompts weekly
- Competitor citation tracking - see when your rivals get cited and you don't
- Reddit brand mentions - AI tools heavily reference Reddit, so we track it
- AI-referred human traffic - separate the users who found you through ChatGPT from organic search
But these are the metrics you need to access to understand if AI referred traffic is hitting your site, and converting into real customers. If you're optimising for AI search and you can't measure AI bot activity, you do not know what is working, and what is not.
Yoast is the best-known WordPress SEO plugin. They've added a basic llms.txt feature, but their product focus is Google SEO - not AI search. EZY is purpose-built for AEO from the ground up. Different products, different priorities.