I built this because I got mass-frustrated with every free sitemap validator on Google's first page. They all do the same thing: parse the XML, count the URLs, maybe flag a missing , and call it done. Not a single one actually fetches the URLs to check if they're alive. Not one checks whether AI crawlers can even reach your content. In 2026, your sitemap isn't just for Google anymore. GPTBot, ClaudeBot, and PerplexityBot are crawling those same URLs — and if your robots.txt blocks them (a lot of sites did this in 2023 to stop scrapers and never undid it), your content is invisible in ChatGPT search, Claude's web answers, and Perplexity citations. So I built the validator I wanted: What it actually does differently: Fetches every URL (up to 1,000) as 5 different crawlers simultaneously Cross-checks your robots.txt per URL, per crawler — so you see "Googlebot: allowed, GPTBot: blocked" in one view Gives you an AI Discoverability score (0-100) with per-crawler breakdown — this doesn't exist in any other free tool Detects your CMS (Yoast, Rank Math, Shopify, Webflow, Next.js, Astro, + 11 more) and prefixes every fix with the exact admin path Flags and as dead weight Google ignores — instead of throwing errors when they're missing, which is what the incumbents still do Validates hreflang across 6 rules that Google Search Console reports vaguely at best What it is NOT: Not a sitemap generator (use your CMS for that) Not a full site audit (we have separate tools for schema, meta tags, broken links) Not paywalled — no signup, no "upgrade for more URLs," no watermark The whole thing runs in 30-60 seconds. Try it with your own sitemap and tell me what breaks — I fix bugs same-day. Link: https://toolsvale.com/sitemap-va... Would love to hear what you'd add to the audit. I'm actively building v1.1 with OAI-SearchBot and Google-Extended crawler support.

Sitemap Validator

Your sitemap works for Google. But does ChatGPT see it?

Your sitemap works for Google. But does ChatGPT see it?