Official statement
Requests to load JavaScript resources during rendering count against the crawl budget. This can slow down the crawling of very large sites (millions of pages or more), but it does not affect crawlability.
Other statements from this video 13 ▾
- □ Is hidden content truly visible to Google?
- □ Do Google’s third-party tools really impact your SEO?
- □ Why Have #! Fragments Become a No-Go for SEO?
- □ Does JavaScript Really Affect Crawlability?
- □ Why does Google render after crawling?
- □ Does blocking the main thread really impact SEO?
- □ Could JavaScript harm your SEO the way Flash did?
- □ Is it possible to avoid cloaking with localized user experiences?
- □ Could using URL fragments for JavaScript modals actually boost your SEO?
- □ Why should you steer clear of inline JavaScript for large SEO scripts?
- □ Is it true that the canonical tag is often overlooked by Google?
- □ Does AMP really affect your website's SEO?
- □ Why is page speed essential for SEO rankings?
Official statement from
(5 years ago)
⚠ A more recent statement exists on this topic
Does Google Merchant Center crawling count against your SEO crawl budget?
View statement →
TL;DR
JavaScript requests affect the crawl budget, potentially slowing down the crawling of very large sites. However, they do not directly impact crawlability.
❓ Frequently Asked Questions
Combien de temps est généralement impliqué par le JavaScript pour le crawl ?
Le délai dépend de la complexité et du nombre de scripts. Pour les gros sites, cela peut être significatif.
Tous les sites doivent-ils revoir leur utilisation de JavaScript ?
Non, les petits à moyens sites ne sont pas réellement affectés par cette contrainte.
Peut-on vérifier soi-même l'impact du JavaScript ?
Oui, via Google Search Console et des audits techniques SEO spécifiques.
🎥 From the same video 13
Other SEO insights extracted from this same Google Search Central video · published on 26/05/2021
🎥 Watch the full video on YouTube →
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