How to add robots.txt, llms.txt and schema to a Squarespace site

Before you start

You need three things:

1. Admin access to the site, so you can open Settings, the SEO/AI Visibility panel and Code Injection.
2. Your site version. llms.txt and the AI Visibility tool are for version 7.1 sites. Squarespace’s help center lets you check which version you’re on.
3. A decision about AI bots. Squarespace gives you one switch, not a file, so decide first whether you want to be in AI answers or out of AI training. If you also need the files themselves, the free Web2Agents .txt generator writes a robots.txt and llms.txt; on Squarespace you’ll use only the llms.txt part.

Step 1: Decide on the AI crawler checkbox

Where it is

Open the Settings panel, click Crawlers, and find Block known artificial intelligence crawlers. Squarespace leaves it unchecked by default because, in its words, it doesn’t want to “potentially impact your site’s traffic by excluding it from chat answers and sources”.

The Crawlers page has a separate option for search engines. That one hides your site from search results, so leave it alone unless that’s really what you want.

What ticking it blocks

According to Squarespace’s help article on AI crawlers, the checkbox asks these bots not to crawl your site, among others: GPTBot, ClaudeBot, anthropic-ai, Google-Extended, Applebot-Extended, CCBot, Meta-ExternalAgent, Amazonbot, Bytespider, GoogleOther, DuckAssistBot, cohere-ai and YouBot. The full list has 26 names and Squarespace says it may add more.

It doesn’t touch the bots that fetch pages for AI search answers from OpenAI and Perplexity, because OAI-SearchBot, ChatGPT-User and PerplexityBot aren’t on the list. OpenAI’s crawler overview explains that GPTBot is for training and OAI-SearchBot is for search, and that each one has its own robots.txt setting.

So the checkbox mostly blocks training crawlers. But it isn’t a clean “training only” switch: it also blocks DuckAssistBot, which DuckDuckGo uses for its AI answers, and Amazonbot. Squarespace itself says there’s no universal way to opt out of training while still appearing in the same company’s chatbot answers, and that blocking may reduce your traffic. It also doesn’t remove anything already collected.

Which way to go

If you want the reasoning behind each bot, our guide on allowing AI search bots but blocking AI training goes through them one by one. On Squarespace you can’t write those rules yourself, but the same logic tells you whether the checkbox fits.

Step 2: Add llms.txt (version 7.1)

Turn it on

From Squarespace’s llms.txt guide:

1. Open the SEO/AI Visibility panel.
2. Click SEO Settings, then the LLMS.txt tab.
3. Paste your llms.txt text into the field. The file stays off until you add text.
4. Click Save. It’s served at https://yourdomain.com/llms.txt.

To turn it off later, go back to the same tab, click Delete, then Save. Version 7.0 sites don’t have this setting.

What to paste

Squarespace says it can’t give advice on the text, because llms.txt is a proposed standard still in development. The llmstxt.org proposal describes a Markdown file with your site name as a heading, a one-line summary in a quote block, and sections of links with one line each. A short example for a small business:

# Example Studio

> Example Studio is a Lisbon photography studio for weddings and portraits.

## Main pages
- [Services and prices](https://example.com/services): packages, prices and what's included
- [Book a session](https://example.com/book): availability and booking
- [About](https://example.com/about): who we are and where we work

## Optional
- [Blog](https://example.com/blog): tips and recent shoots

Keep it to the pages that answer real questions: what you sell, prices, how to buy or book, and where you are. Leave out the privacy policy, thank-you pages and tag archives.

Keep expectations realistic

Google’s AI optimization guide says you can ignore AI text files like llms.txt for Google Search. An Ahrefs study of 137,210 domains found that 97% of published llms.txt files got zero requests in May 2026. On Squarespace it takes five minutes and costs nothing, so it’s fine to add, but your page content and the crawler checkbox matter more. More in our explainer what is llms.txt.

Step 3: Add schema with code injection

Check what’s already there

Before you add anything, open a live page, view its source and search for application/ld+json. That shows any structured data already on the page, so you don’t add a second block that describes your business differently.

Where to paste JSON-LD

Squarespace’s code injection guide gives you two places:

Wrap the JSON-LD in <script type="application/ld+json"> and </script> tags and click Save. Page Header Code Injection goes into that page’s <head>. Squarespace notes three limits: code injection needs a Core, Plus or Advanced plan (or some legacy plans), checkout pages don’t accept custom code, and its support team can’t help with custom code.

Keep it honest

Every value in your markup should match what a visitor sees on the page. Google’s guidelines expect that, and an AI assistant that finds different opening hours in your schema and your page has a reason to trust neither. Google also says structured data isn’t required for its AI features and there’s no special AI schema to add (AI optimization guide). Think of schema as accurate labelling, not a ranking trick.

Step 4: Check everything on the live site

1. robots.txt: open https://yourdomain.com/robots.txt. If you ticked the AI checkbox, the listed bots such as GPTBot and ClaudeBot should now appear in the file. If you didn’t, they shouldn’t.
2. llms.txt: open https://yourdomain.com/llms.txt in a private window and check it shows your text.
3. Schema: paste a page URL into the Schema Markup Validator to catch errors, and into Google’s Rich Results Test to see which rich results it qualifies for.
4. AI mentions: on 7.1, open SEO/AI Visibility, then AI Visibility, and run a few branded and non-branded prompts. Squarespace’s AI search guide says the tool shows whether ChatGPT or Gemini mention your site, and each run uses AI credits from your plan.
5. Outside check: run the free Web2Agents AI check to see how AI bots are treated by your robots.txt and how your homepage scores.

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