Can you put a link to the site on the dark web for SEO purposes?
Let’s take this statement:
„The term dark web refers to encrypted online content that is not indexed by conventional search engines. Accessing the dark web can only be done using specific browsers, such as TOR Browser.”
If the statement is true, in this case, Google will not see the link so it doesn’t affect you.
What happens if Google can access the link? If Google somehow sees the link, it matters a lot which site puts the link. It may be a legitimate site, and then the link helps, or it may be a dubious site, which at best does no harm, and at worst, if there are a lot of such sites that link, risk a penalty.