Sitemap lastmod is in the future

LowDeveloper fixSitemapsSite-wide checksitemap_lastmod_future

What this means

A lastmod value is dated ahead of now. Future timestamps are a common symptom of a generator writing publish dates rather than modification dates, and they give Google no usable recrawl signal.

How to fix it

Set lastmod to when the page content actually last changed. Never set it to the time the sitemap was generated, which would mark every page as freshly modified on every build.

Fix effort

This check needs a developer fix: it turns on a routing, hosting or infrastructure decision that no automatic edit can make safely.

Authoritative source

https://developers.google.com/search/docs/crawling-indexing/sitemaps/build-sitemap

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