How to insert the rel='nofollow" tag on an Amazon affiliate link?

[francesckosky]

Hello.
How do I add the rel=''no follow'' tag to an Amazon affiliate link like this? Where does it go?

Example of affiliate link amazon
https://www.amazon.it/s?k=NOMEPRODOTTOs%2C258&linkCode=ll2&tag=MYAFFILIATEID-21&linkId12345678910

Would it be okay if added at the end?
https://www.amazon.it/s=kOMEPRODOTTOs%2C258&linkCode=ll2&tag=MYAFFILIATEID-21&linkId12345678910/rel='nofollow'

I did a test with a real Amazon affiliate link and it seems to work
Thanks in advance for any clarification that will be provided. Best regards

[edited by: not2easy at 6:37 pm (utc) on Apr 18, 2022]
[edit reason] de-linked for readability [/edit]

[not2easy]

Google may or may not respect your nofollow, they see it as a hint. The rel= to add to affiliate links is rel="sponsored" since a few years now.

It has been changing for some time. In 2016: Does Google ignore nofollow [webmasterworld.com]

In 2019: Google adds new options to NOFOLLOW [webmasterworld.com]

In 2020: Google considers "nofollow" as a hint as of 1 March, 2020 [webmasterworld.com]

Google has also said that affiliate links should use the sponsored attribute (rel="sponsored") to identify links on your site that were created as part of advertisements, sponsorships or other compensation agreements.

As for "where", rel="sponsored" is used as part of the anchor as in

<a href="actual link" rel="sponsored">

That information and more how-to is from https://webmasters.googleblog.com/2019/09/evolving-nofollow-new-ways-to-identify.html