Official statement
Google treats JavaScript generated content in the same manner as static HTML content. The content is first extracted from the crawled HTML, and then populated after the page has been rendered. There is no fundamental difference in the processing of these two types of content.
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Official statement from
(4 years ago)
⚠ A more recent statement exists on this topic
Does Google really have what it takes to index all JavaScript content?
View statement →
TL;DR
Google regards JavaScript generated content as equivalent to static HTML. This means that JavaScript content is integrated after the page is rendered. For SEO, this indicates consistency in how both types of content are processed.
❓ Frequently Asked Questions
Est-ce que tout le JavaScript est correctement indexé par Google ?
Google prétend oui, mais cela dépend de l'accessibilité au moment du rendu.
Faut-il encore privilégier le rendu côté serveur ?
Oui, car cela minimise les risques d'erreurs de rendu et d'indexation.
Le JavaScript peut-il nuire au temps de chargement ?
Absolument, un JavaScript mal optimisé peut gravement ralentir votre site.
🎥 From the same video 11
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