Run a Free AI Crawl Check on Your Website
Audit your robots.txt against GPTBot, ClaudeBot, and PerplexityBot. Check if your website blocks AI agents, optimize citation schemas, and maximize search visibility in ChatGPT, Claude, and Gemini.
Advanced AI Search Visibility Audits
Run an accurate ai crawl check across 25+ parameters to check if website blocks ai, protect website from ai scraping, or allow chatgpt search bot citations.
llms.txt Checker & Schema
Scan for llms.txt, agents.json, sitemaps, RSS feeds, and canonical tags to verify and check ai search visibility.
AI Understanding
Detect JSON-LD schema, FAQ Page tags, and semantic HTML for ChatGPT, Claude, and Gemini engines.
Technical SEO
Verify HTTPS, viewport parameters, TTFB, and JS rendering risks that block LLM scrapers.
Robots.txt Analysis
Use our test robots.txt for ai module to audit blockages for GPTBot, ClaudeBot, PerplexityBot, and Bytespider.
AI Agent Diagnostics
Heuristic models estimating citation probabilities. Configure prevent ai data training tool directives based on your brand needs.
Side-by-Side Benchmarking
Run competitor comparison audits to analyze structural visibility gaps and index coverage.
The Scan Pipeline
Fetch Site Context
We fetch your HTML via a secure, SSRF-protected server fetcher, downloading robots.txt, sitemap.xml, llms.txt, and agents.json.
Structure Analysis
Cheerio structural parsers decode JSON-LD schemas, headings structure, image descriptors, and robot disallows.
Readiness Scoring
We calculate a weighted performance index (0-100%) and run custom algorithms for ChatGPT, Claude, Perplexity, and Gemini.
Pricing & Plans
Start scanning for free. Upgrade when agent-based web visibility becomes business critical.
Free
Ideal for individual developers auditing personal sites.
- 3 scans in total
- Full audit reports
- Pre-filled fix templates
- SSRF security validation
Pro
Perfect for growing SaaS startups and indie creators.
- Unlimited scans
- Side-by-side comparison
- Embeddable SVG badges
- Priority crawl speed
- Redirect chain audits
Agency
Designed for agencies, SEO firms, and larger teams.
- White-label PDF reports
- Developer API access
- Multi-domain monitoring
- Automated email alerts
- 24/7 priority support
AI Crawler Checker: The Technical Blueprint
Managing how LLM crawlers interact with your origin server requires a strategic configuration of edge firewalls, robots.txt rules, and structured semantic templates. Use this guide to audit your setups, check if website blocks ai, and learn how to optimize visibility.
01. Crawler Auditing & Diagnostics
Using our free ai crawler checker and online ai bot tester, developers can run an accurate ai crawl check to dissect headers, TLS versions, and server status codes. This system behaves as a combined chatgpt bot checker and claudebot checker, identifying user-agent requests from agents like GPTBot or ClaudeBot.
An expert-level perplexity user agent audit analyzes if Perplexity's real-time retriever, PerplexityBot, faces blockage. A typical diagnostic scan checks if your origin server returns 403 Forbidden or 429 Too Many Requestsstatus codes, verifying your site's availability.
- User-Agent Verification: Validate token request headers.
- Status Codes: Ensure dynamic crawler requests return 200 OK.
- CDN Firewalls: Check if Edge rules block AI scraping requests.
02. Blocking vs. Optimizing Search Visibility
If your goal is to protect website from ai scraping, you must configure a robust prevent ai data training tool. Many sites implement a block llm scrapers tool using Cloudflare WAF or local server configurations to filter out training bots.
However, blocking everything will hide your website from next-generation AI search engines. Our platform allows you to check website ai readiness so you can strategically block training scrapers while you allow chatgpt search bot (OAI-SearchBot) and Google's extended agents to maintain visibility in search engines. Using this comprehensive ai crawler checker tool and ai bot checker, you retain complete authority over your content.
User-agent: OAI-SearchBot
Allow: /
User-agent: GPTBot
Disallow: /
AI User-Agents & Crawl Directives Breakdown
A comparison table displaying how user-agents behave and which configurations govern their access.
| User-Agent Token | Crawl Category | Standard Behavior | Control Mechanism | Optimal Setting |
|---|---|---|---|---|
| GPTBot | LLM Training Scraper | Scrapes text content to train OpenAI models. | Robots.txt / IP block | Disallow: / |
| OAI-SearchBot | Real-time Search Retriever | Retrieves real-time answers for SearchGPT queries. | Robots.txt directive | Allow: / |
| ClaudeBot | LLM Training & Search | Crawls content for Anthropic's Claude platforms. | Robots.txt / WAF rule | Disallow (if training) |
| PerplexityBot | Real-time Search Indexer | Fetches live content for Perplexity AI answers. | User-Agent matching | Allow: / |
| Google-Extended | Gemini Data training | Indexes web pages for Gemini model training. | Robots.txt directive | Allow / Disallow |
Robots.txt Auditing
To prevent unapproved ingestion, it is critical to test robots.txt for ai agents. Be sure to check the capitalization of headers like User-agent and Disallow, as malformed text can render rules ineffective.
LLMs.txt Deployment
Configure your directory layout with our llms.txt checker. Adding a clean markdown file at the root (/llms.txt) provides a concise, high-context map of your site's structure, allowing AI search engines to scan your content efficiently.
AI Crawl Check Metrics
Verify parameters such as semantic layouts, structured JSON-LD schemas, and viewport sizing to check ai search visibility. A well-formatted metadata and navigation structure translates directly to higher inclusion rates in search replies.
GSC Crawler Diagnostics & Fixes
Resolve indexation warnings and crawling errors reported inside Google Search Console. Learn how to debug crawler restrictions using robots.txt, meta directives, and server response headers.
How to Run a Google Crawl Test
Performing a Google crawl test validates if search engines can access your resources. Unlike checking indexes (which shows cached state), a live fetch audit verifies if Googlebot can fetch your HTML, CSS, and JS files without WAF or IP blocking.
Fix "Indexed, though blocked by robots.txt"
This occurs when external sites link to your disallowed URL. To fix: remove the Disallow directive in robots.txt temporarily, add a noindex meta tag to the page HTML, wait for Google to crawl the page and remove it from indexes, and then re-disallow if desired.
Fix "Crawled - Currently Not Indexed"
Google visited your page but did not index it. Debug this by: checking for hidden X-Robots-Tag: noindex HTTP headers, verifying page load speed (slow TTFB/5xx response times can abort indexation), and upgrading thin or duplicate content copy.
Supported Crawlers & User-Agents
We monitor, validate, and check access permissions for a wide array of web crawlers categorized by search intent, scraper behavior, and platform indexation.
🔍 Search Engine Bots
🤖 AI & LLM Crawlers
🛠️ SEO Audit Tools
📱 Social Media Bots
🔒 Cloud & Security Bots
📦 Scrapers & Aggregators
FAQ
What is an AI Crawler Checker?+
An AI Crawler Checker is a specialized ai bot checker and online ai bot tester that evaluates how web crawlers (like GPTBot, ClaudeBot, and PerplexityBot) interact with your site's codebase.
How do I test robots.txt for ai agents?+
You can use our built-in test robots.txt for ai tool to verify your directives. Our scanner runs a perplexity user agent audit and check if website blocks ai, showing you if your rules correctly block llm scrapers tool options or allow chatgpt search bot crawl access.
How does the llms.txt checker help?+
The llms.txt checker validates if your site has a valid llms.txt index file. Providing this file is a key way to protect website from ai scraping of irrelevant pages while pointing friendly search agents directly to your highest-value summaries.
How can I prevent ai data training tool access?+
If you want to protect your intellectual property and prevent ai data training tool crawlers from harvesting your articles, you can use our block llm scrapers tool recommendations to configure your robots.txt or edge firewalls.