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Official statement

If affiliate links are added via JavaScript, appropriate attributes (nofollow or sponsored) must also be included in the JavaScript code.
🎥 Source video

Extracted from a Google Search Central video

💬 EN 📅 13/07/2021 ✂ 8 statements
Watch on YouTube →
Other statements from this video 7
  1. Pourquoi les liens d'affiliation sont-ils acceptés par Google pour le SEO ?
  2. Pourquoi un contenu unique est-il crucial pour les sites avec liens d'affiliation?
  3. Faut-il vraiment déclarer tous les liens d'affiliation pour le SEO ?
  4. Faut-il utiliser rel='nofollow' pour les liens d'affiliation ?
  5. Faut-il vraiment cacher vos liens d'affiliation en SEO ?
  6. Pourquoi faut-il déclarer correctement les liens d'affiliation pour le SEO ?
  7. Comment optimiser vos avis produits affiliés avec des données structurées ?
📅
Official statement from (4 years ago)
TL;DR

Google requires nofollow or sponsored attributes for affiliate links in JavaScript. Ignoring this can negatively impact a site's SEO. Review your scripts to optimize link structure.

What you need to understand

Why does Google care about affiliate links in JavaScript?

Affiliate links can influence PageRank if not handled correctly. Google wants to prevent ranking manipulation by affiliates and ensure transparency about the sponsored nature of the links.

  • Google's algorithm may interpret these links as promotional incentives.
  • Without appropriate attributes, your site risks potential penalties.

Which attributes are essential?

The nofollow and sponsored attributes are crucial. Nofollow indicates that the link should not pass PageRank, while sponsored signifies compensation for the link.

SEO Expert opinion

Is this statement consistent with observed practices?

Yes, Google has always recommended marking affiliate links. This is not a new development in modern SEO strategy.

What nuances should be added to this recommendation?

The challenge lies in the technical implementation via JavaScript. Not all developers master this precise integration, and ready-made solutions may lack flexibility.

Be sure to check the final rendering to avoid omissions, as Google's crawlers do not always execute JavaScript perfectly.

Practical impact and recommendations

What should you do practically?

Integrate the nofollow and sponsored attributes into your JavaScript code where the links are generated. Carefully test each link to ensure it functions properly.

What mistakes should you avoid?

Do not assume that simply using JavaScript hides your links from crawlers. Each link must be reviewed manually.

  • Use a tool to analyze your affiliate links.
  • Ensure that the JavaScript code is properly executed and rendered by the crawlers.
Adapting these technical aspects requires specialized skills. Seeking support from an SEO agency may be wise to avoid costly mistakes.

❓ Frequently Asked Questions

Que fait l'attribut nofollow ?
Il indique que le lien ne doit pas transmettre de PageRank.
Pourquoi utiliser sponsored ?
Pour signaler que le lien est une publicité ou inclut une compensation.
Google pénalise-t-il les liens d'affiliation non marqués ?
Ils pourraient affecter le classement, surtout s'ils sont perçus comme manipulation.
🏷 Related Topics
AI & SEO JavaScript & Technical SEO Links & Backlinks

🎥 From the same video 7

Other SEO insights extracted from this same Google Search Central video · published on 13/07/2021

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