How to get these youtube backlinks?

How to get these youtube backlinks?
How is this site getting these youtube backlinks and how are they sticking?
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I cannot find them on the about section of the channel or anywhere else.
My best guess is that they had the youtuber post the video in their featured video section with a link back to their product page??
Anyone know?
Attachments
check the source code of the page
if it's not there, link may be removed since some time already

Come on man, links section of any YT profile obviously...
LOL why didn't I think of checking there first before posting in BHW /s... It's not there go check

check the source code of the page
if it's not there, link may be removed since some time already
If it is removed - where was it originally? The featured video on the channel's description?

If it is removed - where was it originally? The featured video on the channel's description?
It can be placed anywhere, comments, the descriptions, whatever mate.

LOL why didn't I think of checking there first before posting in BHW /s... It's not there go check
I did and it's there
/thread
Where? Screenshot?
Well your first problem is you're looking at a backlink that was last seen in 2020 and not re-crawled. You're sitting here 4 years later trying to find it live on a page. The odds are poor. You have to look at the archives.
It's all over.

Well your first problem is you're looking at a backlink that was last seen in 2020 and not re-crawled. You're sitting here 4 years later trying to find it live on a page. The odds are poor. You have to look at the archives.
It's all over.
Click to expand...How did you find these specific videos???

How did you find these specific videos???
Google search and Ahrefs