Free Sitemap Checker: Validate XML, Indexes & URL Errors

Public evidence

The tool reads the public response and shows what it measured.

No account required

Use the free check before deciding whether a full audit is useful.

Next step

Move from one signal to a complete SEO, GEO, and AEO audit.

What this tool checks

A focused answer from the public website response.

Validate XML or text sitemaps, follow sitemap indexes, and sample submitted URLs for indexability conflicts.

robots.txt discovery and sitemap index traversal

XML or text syntax, namespace, file limits, and invalid locations

Duplicate and cross-host URL detection

Sampled URL status codes and redirect chains

Sampled noindex directives and canonical conflicts

What you get

Enough evidence to choose the next step.

See every sitemap document reached within the free limits

Separate structural totals from sampled URL evidence

Get exact example URLs for each measured problem

Sitemap validation guide

What a valid sitemap should contain

A sitemap should list the final canonical URLs that the site wants search engines to index. Submitted URLs should return successful responses directly, remain indexable, and avoid canonicalizing to another location.

A sitemap can be valid XML and still contain poor inventory. Redirects, noindex pages, errors, duplicate locations, and conflicting canonicals create avoidable crawl noise.

Use absolute public URLs in every loc element.
Keep each sitemap below 50,000 URLs and 50 MB uncompressed.
Submit final URLs without redirect hops.
Remove URLs that declare noindex or canonicalize elsewhere.

How this free sitemap test is measured

The checker reads all sitemap documents and URL locations it can reach within the published free limits. URL-level HTTP, noindex, and canonical checks use a deterministic sample because fetching every URL on a large website would be slow and abusive.

The report displays structural coverage and sample size separately. It never projects a sampled defect across URLs that were not fetched.

What to fix first

Restore missing or malformed sitemap documents first. Then remove failed and noindex URLs, replace redirects with their final destinations, and reconcile canonical conflicts. Duplicate URLs and optional namespace cleanup come after indexability problems.

FAQ

What does this sitemap checker validate?

It checks sitemap discovery, HTTP delivery, XML or text structure, nested sitemap indexes, duplicate and invalid locations, protocol limits, and a deterministic sample of submitted URLs.

Will a valid sitemap guarantee indexing?

No. It helps discovery and communicates canonical URLs, but search engines still decide whether each page is useful and indexable.

Does the checker fetch every URL in a large sitemap?

It reads sitemap locations within the published free limits, then fetches a deterministic URL sample for redirects, noindex directives, response errors, and canonical conflicts. The sample size is shown in the report.

Can I enter a sitemap URL directly?

Yes. Enter a public sitemap URL such as /sitemap.xml, or enter the website homepage and the checker will use robots.txt and the conventional sitemap location.

Sitemap troubleshooting guides

Fix the specific conflict the checker found.

SEO · 7 min

How to validate an XML sitemap

A practical XML sitemap validation workflow covering discovery, syntax, indexes, URL eligibility, redirects, noindex directives, and canonical conflicts.

Read guide

SEO · 6 min