← All posts

Schema vs llms.txt vs plain good copy: where to spend your first hour

Google says you do not need special AI files or markup. Here is what the evidence shows, and what to do first.

You have one hour and three things people tell you to do: write clearer page copy, add schema markup, or create an llms.txt file. The evidence points to an order. Clear copy first, then crawl access and markup that matches your page. The llms.txt file comes last.

The comparison

OptionEffortWhat the evidence saysRisk
Plain, clear copy in the page HTMLLow to mediumGoogle says SEO best practices remain relevant to its AI features. Vercel's December 2024 study found OpenAI's and Anthropic's crawlers did not run JavaScript, so text built in the browser can be missedLow
Structured data (schema)Low to mediumGoogle says there is "no special schema.org structured data that you need to add" for its AI features, and that markup should match the visible textMarkup that disagrees with the page creates a new conflict
llms.txtLowGoogle says you do not need AI text files. SE Ranking found about 10% of nearly 300,000 domains had one, with no correlation to AI citationsLow, but mostly a time cost

Crawler behaviour changes, and these findings are snapshots. The sources are at the end.

Your first hour

  1. Minutes 0 to 20: read the page like a crawler does. Fetch the raw HTML and check that your price, services and key facts are in it. The commands are in Can AI crawlers read your site?
  2. Minutes 20 to 40: fix the first screen. Put the answer in the first two sentences, and use plain, specific words. The checklist is in Write pages AI can quote
  3. Minutes 40 to 50: make any markup match. If you use schema, check each field against what a visitor can read on the page. Remove anything that does not match.
  4. Minutes 50 to 60: llms.txt, only if it fits. It is worth the time mainly for a documentation-heavy site. llms.txt: what it is and whether you need one explains when.

Why this order

Copy comes first because it is the thing every engine reads, and it helps people too. Markup comes second because Google's own guidance says it is not required for AI features, but it must agree with the page when you use it. llms.txt comes last because the evidence for it is the thinnest.

Not sure where your pages stand? The free AI Visibility Score shows what ChatGPT, Claude, and Perplexity say about you today.

Sources

Checked October 18, 2026.

See what AI says about your brand.

The free AI Visibility Score asks ChatGPT, Claude, and Perplexity about you and scores their answers out of 100.

Get My Score Book a Call