Does blocking GPTBot stop ChatGPT from using my content?

It stops OpenAI from crawling your site for future model training data, but it's a separate decision from OAI-SearchBot, which powers ChatGPT's live web search and can drive referral traffic back to you. Many sites block one and allow the other.

What's the difference between robots.txt and meta robots?

robots.txt controls crawling — whether a bot is allowed to fetch a URL at all. A meta robots tag controls indexing — whether a page that was already crawled gets shown in search results. Blocking a URL in robots.txt doesn't guarantee it stays out of the index if other sites link to it.

What is llms.txt and do I need one?

llms.txt is a proposed 2025 convention — not an official W3C or IETF standard — for giving AI systems a curated, human-written summary of a site's key pages, similar in spirit to a sitemap but meant for language models rather than search crawlers. It's optional, but low-cost to add if you already want AI systems to cite your content accurately.

Does robots.txt affect SEO rankings?

Only indirectly. Blocking low-value URLs (internal search results, filtered/faceted pages, admin routes) helps search engines spend their crawl budget on pages that matter. It has no direct effect on rankings, and accidentally blocking pages you want indexed will hurt them.

How do I test if a specific URL is blocked by robots.txt?

Paste the path and pick a user-agent in the URL tester panel — it evaluates the same rules Google does (longest matching rule wins, Allow beats Disallow on a tie) and shows you exactly which line decided the result.

robots.txt Generator

Free robots.txt generator with AI bot presets (GPTBot, ClaudeBot, Perplexity), URL tester, and llms.txt generator. Block AI crawlers in seconds, no signup.

Updated June 2026

No sitemap URL configured. Adding a sitemap improves crawl coverage.

AI Agent Controls

Training (LLMs)

GPTBot

OpenAI

Google-Extended

Google

anthropic-ai

Anthropic

CCBot

Common Crawl

Bytespider

ByteDance

Applebot-Extended

Apple

Amazonbot

Amazon

cohere-ai

Cohere

Browsing & Real-time

OAI-SearchBot

OpenAI

ClaudeBot

Anthropic

PerplexityBot

Perplexity

FacebookBot

How to use this robots.txt generator

From a template to a tested, ready-to-deploy file

1. Pick a template

Blog, E-commerce, SaaS, Enterprise, or News — each one pre-fills the rules that site type needs most.

2. Configure the AI bots

Allow or block each of the 12 AI crawlers individually, or flip "Block All" to disallow every one at once.

3. Test a URL and export

Check whether a path would be allowed or blocked before you copy or download the final robots.txt.

What this robots.txt generator does

Built for the era of AI crawlers, not just search engines

12 individual AI bot toggles

GPTBot, ClaudeBot, PerplexityBot, Google-Extended, Bytespider, and more — each with its own allow/block switch, split into training and browsing crawlers.

Built-in URL tester

Enter any path and user-agent to see whether it's allowed or disallowed, plus the exact rule and line number that decided it.

llms.txt generator

Create the emerging llms.txt file alongside your robots.txt to describe your site to AI systems in plain language.

Site-type templates

Blog, E-commerce, SaaS, Enterprise, and News presets fill in the disallow paths each site type typically needs.

Fetch and diff a live robots.txt

Pull the current robots.txt from any domain and compare it line-by-line against your draft before you overwrite it.

Real-time validator

Catches accidental full-site blocks, missing sitemaps, malformed paths, and duplicate user-agent blocks as you type.

Rule examples

How common paths resolve once the file is generated

User-agent / Path

Result

Googlebot / /admin/

Blocked (Disallow: /admin/)

GPTBot / /blog/post-1

Blocked (Disallow: / for that bot)

* / /?s=search

Blocked (internal search parameter)

Bingbot / /about

Allowed — no matching rule

When you'll reach for this tool

The scenarios that come up most often

Blocking faceted navigation

E-commerce sites generate near-duplicate URLs from filters and sorting — disallow /*? patterns to stop them from burning crawl budget.

Shielding the admin panel

Add a Disallow rule for /admin/ and /wp-login.php as a courtesy to crawlers, on top of real authentication, not instead of it.

Declaring your sitemap

List the sitemap URL so every crawler that respects robots.txt can discover your pages automatically.

Keeping content out of AI training data

Publishers block GPTBot, CCBot, and Google-Extended to keep original content from feeding future model training runs.

Common mistakes

Small robots.txt errors with outsized consequences

Blocking pages you actually want indexed

Disallow: /blog/ stops Googlebot from crawling your entire blog. Only disallow what genuinely shouldn't be crawled.

Confusing crawling with indexing

A blocked URL can still show up in search results if other sites link to it. Use a noindex meta tag when the goal is to keep a page out of results entirely.

Forgetting the trailing slash

Disallow: /admin blocks only that exact path; Disallow: /admin/ blocks every subdirectory underneath it too.

Why use this robots.txt generator

Most robots.txt generators still treat AI crawlers as an afterthought, if they mention them at all. This one gives you individual control over 12 named AI bots — split by whether they scrape for training data or for live search results — instead of one generic "block all AI" checkbox.

The built-in URL tester and live-diff view remove the guesswork: you confirm a rule behaves exactly as intended, and see how your draft compares to what's already deployed, before you ever overwrite a production file.

Training crawlers vs. browsing crawlers

Not every AI bot serves the same purpose

Training crawlers

Browsing crawlers

Examples

GPTBot, CCBot, Google-Extended

OAI-SearchBot, PerplexityBot, ClaudeBot

Purpose

feed data into future model training

power real-time AI search answers

Sends referral traffic

sometimes, via citations

Frequently asked questions

Add a separate User-agent block with Disallow: / for each crawler you want to exclude — there's no single wildcard that targets "all AI bots" and nothing else. This generator's "Block All" toggle does exactly that for its full list of 12 known AI crawlers in one click.

References

Google Search Central — robots.txt specification

Official documentation on robots.txt syntax and how Google's crawlers interpret it.

OpenAI — GPTBot documentation

How to identify and opt out of crawling for OpenAI's model training bot.

IETF RFC 9309 — Robots Exclusion Protocol

The formal internet standard that defines how robots.txt directives must be parsed.