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LLM Readiness Check
LLM Readiness Check is an AI crawler access tester that checks whether websites are visible to answer engines.
LLM Readiness Check tests whether ChatGPT, Claude, Perplexity, Gemini, Microsoft Copilot and other AI answer engines can crawl and read your website. It provides a score, fixes, and a robots.txt snippet in about 10 seconds. The tool checks 15 AI crawlers across 8 AI engines, raw HTML readability without JavaScript, homepage indexability, JSON-LD structured data, titles and descriptions, XML sitemaps, and llms.txt files. It is built for website owners and B2B companies looking to optimize for answer engines. Users can run the check on any page via the free Chrome extension, which operates entirely in the browser without sending data to servers.
LLM Readiness Check at a glance
- Best for: Marketer, Software engineer, Founder
- Runs on: Web, Chrome extension
- Pricing: Free tool
- Released: October 2026
- Category: AI search engine
- Website: agisearchlabs.com
Key features
- Tests 15 AI crawlers across 8 AI engines
- Measures text readability without JavaScript
- Checks HTTP status and noindex directives
- Validates JSON-LD structured data
- Inspects titles and meta descriptions
- Checks XML sitemap availability
- Detects llms.txt files
- Generates a ready-to-paste robots.txt snippet
Use it for
- Check if AI answer engines can crawl and read your site
- Identify robots.txt blocking issues for specific AI crawlers
- Verify structured data and sitemap configuration for AI tools
- Test individual product and blog pages using the browser extension
Alternatives to LLM Readiness Check
- AI Checker by Signum.AI — Track brand visibility and findability in AI search engines and answer systems.
- Not Human Search — Score any site across 7 agentic signals and search 8,000+ ready sites.
- IsCited — Scans websites in 10 seconds to check AI visibility and generates an llms.txt file.
- LLMagnet — Tracks visits and visibility scores from major AI bots like ChatGPT and Claude.
- Crawl4AI — Turns any URL into clean Markdown or typed JSON for AI models.
- Firecrawl — Provides direct web data access for AI agents with open source flexibility.
- Free AI Visibility Report — Generates a white-label AI search report with fix recommendations in four minutes.
- Salience — Verifies crawler identities from server logs to show real bot activity and issues.
- Tavily — It delivers fast, secure web data retrieval designed specifically for AI agents.
- jurl — Extracts exact page content without rewriting or hallucinating answers.
- SearchCLI — Provides a stable, reviewable CLI for managing Volcengine AI search workflows.
- AI Search Vitals — Track brand visibility and audit content across AI search engines with verifiable evidence.
All LLM Readiness Check alternatives