Thank you @Gamerseo (385) for the reply.

These are back-end pages of really low quality. Such links are of little importance. The most important links are those that generate traffic to the linked page.

Hi,

While my SEO learning, I found an interesting case. There are many posts link (backlinks) to Site A. The posts are quite similar, but they are existing in individual domains. Then after checking each individual domains, they in fact contains very similar content, which means, it seems those domains are existing for link building.

Here is one example: Target (linked to) domain:

https://boast.ai or https://boastcapital.com

Referrers URL 3 examples:

https://topmagazine.top/online-personal-loans-with-poor-credit-what-you-should-consider/
https://dominium.website/personal-loans-disbursal-the-best-way-to-manage-your-internet-personal-loan/
https://highlilith.website/getting-approved-for-any-online-personal-loan/

Going to the root page of each above domain:

https://topmagazine.top/
https://dominium.website/
https://highlilith.website/

So my questions are:

1. what's the name of this SEO technique?
2. will Google identify the "issue"?
3. will target domain got penalty by Google?

Thanks