You should use archive.org or archive.today links.
The best way to influence the Domain Authority metric is to improve your site’s overall SEO health, with a particular focus on the quality and quantity of external links pointing to your site.
You can use the Wayback machine addon to easily get archived links https://addons.mozilla.org/en-US/firefox/addon/wayback-machine_new/.
And a bookmarklet for archive.today:
javascript:void(open('https://archive.today/?run=1&url='+encodeURIComponent(document.location)))
FYI, if you’re worried about archive.today going down and references being lost, you can manually leave in the original URL by adding https://archive.ph/o/ in front of any URL, after you archive it. IE: https://archive.ph/o/https://sh.itjust.works/post/26060585 will redirect to the archived page, if it exists.
Interesting, re: the spam theory.
I do know that some of my dinkum posts on here are among the first page results for whatever the object in question is, but I’m not sure if that’s due to Google somehow deciding it’s a highly relevant match or if it’s just because some of this crap is so damn niche that there isn’t any other content on it.
For example, this, where I’m result #2 only after the Amazon product page. Or this, where I’m #7. Also #7 here. For this I’m result #2 which is above Walmart’s listing for their own product.
Okay, okay, this one is almost a Googlewhack, but I’m occupying both spots #5 and #6 even if you just search for the alleged “manufacturer’s” name. Admittedly, out of only 6 results to begin with. If you add “knife” to the query I rise to position #4.
…And yet others don’t appear in search results at all. So I can’t say I have any idea how the fuck Google’s search results work.
I think that has to do with your cookies. Your first one, I see wikipedia at #2, then jstor, then another site, then amazon again. There’s a lemmy.world post at #7.