Is the robots.txt checker really free?

Yes. The robots.txt checker is completely free to run. You enter a domain, we fetch and analyze the file, and you get a full report by email at no cost.

Will blocking AI bots hurt my visibility in ChatGPT and Perplexity?

Yes. Blocking search crawlers such as OAI-SearchBot or PerplexityBot can prevent them from fetching your pages for AI answers. Allowing the right bots keeps your content accessible to the engines you care about.

Does the checker change my robots.txt file?

No. The checker is read only. It fetches and analyzes your existing robots.txt and shows you what to change, but it never edits or publishes anything on your site.

Which AI crawlers should I allow?

Allow the crawlers behind the engines you care about: OAI-SearchBot for ChatGPT Search, Googlebot for Google AI Overviews and AI Mode, PerplexityBot for Perplexity, and Claude-SearchBot for Claude. For training and other AI uses, manage GPTBot, ClaudeBot and Google-Extended separately. Keep Bingbot allowed for search too.

How often should I check my robots.txt?

Check it whenever you ship a new robots.txt, migrate platforms, or change your CMS, and review it at least once a quarter. A single accidental disallow can quietly cut off AI visibility for months.

What is the difference between robots.txt and llms.txt?

robots.txt tells crawlers which paths they may fetch. llms.txt is a newer file that points AI engines to your most important content. They work together: robots.txt grants access, llms.txt guides what to read.

What bots do you check?

We check all major AI bots including GPTBot (ChatGPT), ClaudeBot (Claude), PerplexityBot, Google-Extended (Gemini), CCBot (Common Crawl), plus reference bots like Googlebot and Bingbot.

How long does the analysis take?

The analysis usually takes just a few seconds. We fetch your robots.txt file and analyze it in real-time.

Why should I allow AI bots?

Allowing AI crawlers helps your content appear in AI-powered search engines and chatbots like ChatGPT, Perplexity, and Claude. Blocking them may reduce your visibility in these platforms.

AI Robots.txt Checker by

Check if AI bots (GPTBot, ClaudeBot, PerplexityBot) can access your website

One blocked line in robots.txt can quietly stop GPTBot, ClaudeBot, or PerplexityBot from ever reading your pages. Run the free check, see exactly who you allow, and fix the gaps in seconds.

Check AI bot access

robots.txt analysis

Get recommendations

AI visibility score

100% Free Results in seconds

Why Check AI Crawlability?

Your robots.txt file controls which bots can crawl your site. This tool analyzes it to show you which AI crawlers have access to your content, affecting your visibility in AI-powered search engines and chatbots.

Check Your Site

We'll send your report by email. By submitting, you're subscribing to the LLM Pulse newsletter (you can unsubscribe anytime).

Your robots.txt decides which AI bots can read your site

A single line in robots.txt can quietly block ChatGPT, Perplexity, or Google from ever reading your content. As AI crawlers like GPTBot, ClaudeBot, PerplexityBot, and Google Extended multiplied, many sites ended up blocking the very bots that feed AI answers, often by accident. If a crawler is disallowed, your pages cannot be cited in that engine, no matter how good they are.

This free checker reads your robots.txt and shows you exactly which AI and search crawlers you allow or block, line by line. You can confirm you are open to the engines that matter and close the gaps that are quietly costing you AI visibility. Once your bots are allowed, test what they can actually read with the free GEO crawlability checker, and guide them with the free llms.txt generator.

What the robots.txt report covers

A clear, bot by bot view of who you let read your site and who you are turning away.

AI crawler access

Whether GPTBot, ClaudeBot, PerplexityBot, Google Extended, and others are allowed or blocked.

Search engine access

How traditional crawlers like Googlebot and Bingbot are handled in your rules.

Blocked paths

Directories and pages your rules disallow that may include content you actually want cited.

Sitemap and directives

Whether your robots.txt points crawlers to your sitemap and uses valid, conflict free rules.

How it works

How the AI robots.txt checker works

Three steps from your domain to a clear, bot by bot picture of who can read your site.

Enter your domain

Type the domain you want to check and submit the form. We fetch your live robots.txt straight away, no setup or account needed.

We parse every rule

We read each allow and disallow directive and map it against the major AI crawlers (GPTBot, ClaudeBot, PerplexityBot, Google Extended) and search bots like Googlebot and Bingbot.

Get a clear access report

You see which engines can read your site, which are blocked, and the exact lines responsible, so you can open the bots that feed AI answers.

AI robots.txt checker FAQ

Common questions about checking robots.txt for AI and search crawlers.

: Yes. The robots.txt checker is completely free to run. You enter a domain, we fetch and analyze the file, and you get a full report by email at no cost.
: Yes. Blocking search crawlers such as OAI-SearchBot or PerplexityBot can prevent them from fetching your pages for AI answers. Allowing the right bots keeps your content accessible to the engines you care about.
: No. The checker is read only. It fetches and analyzes your existing robots.txt and shows you what to change, but it never edits or publishes anything on your site.
: Allow the crawlers behind the engines you care about: OAI-SearchBot for ChatGPT Search, Googlebot for Google AI Overviews and AI Mode, PerplexityBot for Perplexity, and Claude-SearchBot for Claude. For training and other AI uses, manage GPTBot, ClaudeBot and Google-Extended separately. Keep Bingbot allowed for search too.
: Check it whenever you ship a new robots.txt, migrate platforms, or change your CMS, and review it at least once a quarter. A single accidental disallow can quietly cut off AI visibility for months.
: robots.txt tells crawlers which paths they may fetch. llms.txt is a newer file that points AI engines to your most important content. They work together: robots.txt grants access, llms.txt guides what to read.
: We check all major AI bots including GPTBot (ChatGPT), ClaudeBot (Claude), PerplexityBot, Google-Extended (Gemini), CCBot (Common Crawl), plus reference bots like Googlebot and Bingbot.
: The analysis usually takes just a few seconds. We fetch your robots.txt file and analyze it in real-time.
: Allowing AI crawlers helps your content appear in AI-powered search engines and chatbots like ChatGPT, Perplexity, and Claude. Blocking them may reduce your visibility in these platforms.

Explore more free AI search tools

LLM Pulse is the all-in-one AI search and GEO platform. Use these free tools to audit how AI engines see your brand, then track it all in one place.

Free AI Visibility Report

See how often AI engines mention your brand across ChatGPT, Perplexity, and Gemini.

Brand Mention Checker

Check whether AI answers mention your brand for the prompts that matter.

Discoverability Checker

Measure how discoverable your brand is across AI engines.

ChatGPT Ads Library

Search ads observed in ChatGPT by advertiser, country, message, and date.

GA4 AI Traffic Regex

Build a GA4 regex that groups ChatGPT, Perplexity, Gemini and other AI assistants into one channel.

Agent Readiness Checker

Score your domain on the files, formats and interfaces AI agents look for.

GEO Crawlability Checker

Test whether AI engines can crawl and render your pages.

AI Robots.txt Generator

Choose which AI crawlers, search bots and assistants can read your site and get a ready robots.txt.

llms.txt Generator

Generate an llms.txt file so AI crawlers understand your site.

AI Training Data Checker

Check whether your site appears in Common Crawl, the open corpus that trains most AI models.

Site Structure Checker

Check whether your site structure helps AI engines understand you.

Schema Analyzer

Audit your structured data so AI and search engines understand your pages.

AEO Grader

Grade how well a page is optimized for AI answer engines.

Content Readiness Checker

See if your content is ready to be cited in AI answers.

ChatGPT Shopping Feed Checker

Validate your product feed for ChatGPT shopping results.

AI Text Cleaner

Remove hidden characters, odd spacing, and leftover formatting from pasted text.

AI Watermark Remover

Scan text for invisible watermark characters, decode hidden payloads, and strip them.

Allow the bots, then win the answers

A clean robots.txt is step one. LLM Pulse shows you where your brand appears across ChatGPT, Perplexity, Gemini, and Google AI, and how to climb. Start your 14-day free trial.

Start Free Trial

14-day free trial

Cancel anytime