For certain links on your site, you might want to tell Google your relationship with the
linked page. In order to do that, use one of the following rel
attribute values in the <a> tag.
For regular links that you expect Google to fetch and parse without any qualifications, you don’t need
to add a rel attribute. For example:
For other links, use one or more of the following values:
rel values | |
|---|---|
| Mark links that are advertisements or paid placements (commonly called paid |
| We recommend marking user-generated content (UGC) links, such as comments and forum If you want to recognize and reward trustworthy contributors, you might remove this |
| Use the |
Multiple values | You may specify multiple |
Links marked with these rel attributes will generally not be followed. Remember
that the linked pages may be found through other means, such as sitemaps or links from other
sites, and thus they may still be crawled. These rel attributes are used only in
<a> elements that Google can crawl,
except nofollow, which is also available as
robots meta tag.
If you need to prevent Google from fetching a link to a page on your own site, use the
robots.txt disallow rule.
To prevent Google from indexing a page, allow crawling and use the
noindex robots rule.
Cómo lo aplicamos
Qualifying outbound links protects a client from unintended endorsement. Sponsored and user-generated attributes are policy compliance, not optimisation, and we set them at the template level so contributors cannot forget.
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