Is your sitemap.xml reachable?
A sitemap only helps if a crawler can actually fetch it and gets XML back. We request /sitemap.xml and check two things: that it responds 200, and that what came back is real XML rather than your HTML page served at that path.
Free, no sign-up. We fetch one public file and read it. Nothing is stored.
Questions
- What exactly does this check?
- Two facts, both measured from the one response: whether GET /sitemap.xml returns 200, and whether the body is XML rather than an HTML page. Many SPA and CMS setups answer any unknown path with their HTML shell, so /sitemap.xml returns 200 while a parser gets markup it cannot read.
- What does it NOT check?
- It does not open every URL listed inside the sitemap, validate lastmod dates, or confirm each page is indexable. It checks that the sitemap file itself is reachable and is XML. The full audit at /audit inspects the pages behind it.
- Is this check free?
- Yes, no signup. We fetch one public file and read the response. You see the full result, including what failed.
Check something else
- Does your homepage render without JavaScript?Reads the raw server HTML (no JavaScript executed) and reports whether the primary content is actually there.
- Is your llms.txt valid?Reads and parses the llms.txt file itself, rather than testing a crawler rule.
- Is CCBot blocked on your site?Tests the CCBot user-agent specifically, which collects pages used to train the model.
- Is GPTBot blocked on your site?Tests the GPTBot user-agent specifically, which builds the index the model answers from.