An XML sitemap is a machine-readable file that lists a site’s URLs, often with metadata such as last-modified dates, to help search engines discover and prioritize pages for crawling.
| Term | XML Sitemap |
|---|---|
| Category | Page Structure and Technical SEO |
| Also known as | Sitemap |
| Where it appears | Site Builder and Experiments deployment |
What it means in RankGear
In RankGear, the XML sitemap comes up in Site Builder and in the deployment step of Experiments, where the pages you generate need to be surfaced to crawlers. Rather than treating the sitemap as a background formality, RankGear looks at it as one of the discovery signals a page relies on: a URL that appears in a valid, reachable sitemap has a clear path to being found, while one that is missing, stale, or buried is left to internal links alone. When you deploy a build or run an experiment, the sitemap is the file that tells search engines the URL exists and roughly when it last changed.
How to interpret it
Presence is only the first check. A sitemap can exist and still be effectively useless, so read it for implementation rather than just for whether a file returns a 200. Confirm the specific URL is actually listed, that the entry points at the canonical, indexable version of the page rather than a redirect or a blocked variant, and that the file itself is referenced in robots.txt or submitted in Search Console. Metadata such as lastmod is only helpful when it is truthful; a date that never changes carries no information. Treat the sitemap as an aid to discovery, not a ranking lever.
Example
You publish a batch of ten location pages through Site Builder. Nine appear in the generated sitemap and are crawled within days; the tenth was created after the sitemap was last regenerated, so it is absent, unlinked from the main navigation, and sits uncrawled for weeks. Regenerating the sitemap so the tenth URL is included, then resubmitting it, gives that page the same discovery path as the other nine.
Important considerations
- A sitemap assists crawling and discovery; it does not guarantee indexing and it does not make a page rank. Inclusion is an invitation to crawl, nothing more.
- Technical conformance (valid XML, correct URLs, reachable file) improves machine readability, but a listed page can still be thin, duplicated, or blocked by other signals such as a noindex tag or a robots rule.
- List only canonical, indexable URLs. Pointing a sitemap at redirects, error pages, or non-canonical variants sends mixed signals and wastes crawl attention.
- Keep it current. A sitemap that lags behind new or removed pages, or that carries dishonest lastmod values, degrades rather than helps discovery.
Related terms
Part of the RankGear glossary · how RankGear measures · the 870 factors.