Spotting Sketchy Affiliate Sites Early

Been seeing a lot of new opportunities pop up lately, and it got me thinking about the red flags. For me, a big one is when the site's tech stack is a mess or the domain history looks super spammy. If the site's been passed around a bunch or has a weak backlink profile that screams PBN, that's a major warning sign. Also, watch out for promises that sound too good to be true, especially with new GEOs. A site that requires a ton of immediate fixes for basic technical SEO is usually a money pit, not an asset. What else do you guys look for?