The follow or nofollow instructions tells bot:
| Value | Level | Description |
|---|---|---|
| nofollow | Page | Don't analyze the page for links |
| nofollow | Hyperlink | No endorsement, including passing along ranking credit to another page. |
The meta name=“ROBOTS” tell visiting robots whether a document may be used to harvest more links.
In the following meta example a robot should neither index this document, nor analyze it for links.
<META name="ROBOTS" content="NOINDEX, NOFOLLOW">
Specific to a bot: googlebot cannot harvest links
<meta name="robots" content="nofollow">
On a link level with the rel attributes
Example:
<a href="https://example.com" rel="nofollow">An example</a>
Links marked with rel attributes will generally not be followed.