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Official statement

For platforms hosting user-generated content, it is recommended to separate the clean editorial content on a distinct domain and isolate each user on subdomains. This helps Google evaluate quality individually and limits the impact of spam.
🎥 Source video

Extracted from a Google Search Central video

💬 EN 📅 20/08/2021 ✂ 18 statements
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✂ Other statements from this video 17 ▾
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  3. □ How does Google's new removal tool transform your SEO strategy?
  4. □ Should you choose robots.txt or noindex for your important pages?
  5. □ Do temporarily removed pages really influence the overall SEO quality of a website?
  6. □ Is it true that links to a noindex page can lose their SEO value?
  7. □ Should you worry about media attachment pages for SEO?
  8. □ How does combining similar content really strengthen your SEO pages?
  9. □ Is it true that you can't use Google My Business reviews in schema?
  10. □ Does Server Response Time in Search Console Really Impact Your SEO Rankings?
  11. □ How do content silos truly impact your SEO?
  12. □ Should you focus on concentrated traffic or dispersed traffic for SEO?
  13. □ How can you avoid the negative impacts of network caching on your SEO tests?
  14. □ Could having too many language versions actually weaken your SEO performance?
  15. □ How does the disavow file truly impact your link profile?
  16. □ Are Session Interstitials Really Impact-Free for SEO?
  17. □ Why does Google prioritize field data over lab data for SEO?
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Official statement from (5 years ago)
TL;DR

Google advises separating editorial content from UGC on distinct subdomains to better assess the quality of each source and limit the impact of spam.

❓ Frequently Asked Questions

Comment Google différencie-t-il le contenu sur les sous-domaines ?
Google traite généralement chaque sous-domaine comme un site distinct, ce qui permet une évaluation individuelle de la qualité du contenu.
Est-ce que cette méthode affecte le SEO négativement si mal gérée ?
Oui, une mauvaise gestion des sous-domaines peut entraîner des problèmes d'indexation et diluer l'autorité globale du domaine.
Tous les sites doivent-ils utiliser des sous-domaines pour le contenu UGC ?
Non, cela dépend de la taille et de la nature du site. Pour les petits sites, cela pourrait ne pas être nécessaire.
🏷 Related Topics
Content AI & SEO JavaScript & Technical SEO Domain Name Penalties & Spam

🎥 From the same video 17

Other SEO insights extracted from this same Google Search Central video · published on 20/08/2021

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