Sitemap XML generator
Built in your browser · nothing is uploaded
Generates a valid sitemap urlset from a list of URLs. `changefreq` and `priority` are optional and, honestly, ignored by Google — they default to omitted here for that reason.
How to use the sitemap xml generator
Google has stated plainly that it ignores both `changefreq` and `priority`, so filling them in is effort with no return; `lastmod` is the one optional element it does use, and only when it is accurate. A sitemap with every page claiming today’s date is treated as noise and the element gets discounted entirely, which means dishonest lastmod values cost you the benefit of honest ones. Two limits worth knowing: 50,000 URLs and 50 MB uncompressed per file, above which you need a sitemap index pointing at several sitemaps. And a sitemap is a hint about what exists, not a promise of indexing — pages in a sitemap are routinely not indexed, which is a content question rather than a sitemap one.
Questions
No. Google has said it ignores both. Only lastmod is used, and only when it is accurate.