Official statement
The lastmod date in the XML sitemap should be updated when there are changes to the main content or structure of the site, not for changes to common areas like the menu or footer. There's no strict rule, but the objective is to indicate when the content deserves a new crawl.
2:56
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Official statement from
(3 years ago)
⚠ A more recent statement exists on this topic
Should You Really Update the lastmod Tag in Your XML Sitemap?
View statement →
TL;DR
Update the lastmod in the XML sitemap only for changes to the main content or structure, not for minor modifications like the menu. The goal is to signal content that deserves a new crawl.
❓ Frequently Asked Questions
Quand devrais-je mettre à jour le lastmod de mon sitemap?
Mettez à jour le lastmod lors de modifications du contenu principal ou de la structure du site.
Les changements de menu nécessitent-ils une mise à jour du lastmod?
Non, les modifications comme celles du menu ou du pied de page ne nécessitent pas de mise à jour du lastmod.
Comment un changement de contenu principal impacte-t-il le SEO?
Un changement de contenu principal peut attirer un nouveau crawl de Google, améliorant potentiellement l'indexation et la visibilité après une mise à jour significative.
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