I'm a newbie SEO and recently looked at the backlinks of competitors' websites. Found that most of them are this kind of domains that have nothing when you click on them, but use png as the referencing domain, curious how it's done? Is it bought?
It sounds like you stumbled upon some potentially sketchy backlink practices! Those empty domains might be part of a backlink strategy where sites buy or create low-quality links to boost their SEO.
Are they visible images or transparent 1x1 images? It sounds like the kind of thing we used to do 20 years ago and that Google has long been penalising.
Thank you all so much! I may have gotten it. I don't see these images displayed on the site, but the image link opens at 768*768. If Google would be penalizing, why does his site still have a high DA score and a lot of Organic Traffic. Really can't understand the mechanism of Google SEO