Tumblr

Tumblr describes itself simply: "하고싶은게 많지만 체력과 시간이 그를 따라가주지 못하는, 개그와 드립을 사랑하는 아직은 파란 청춘입니다. Dream maker a.k.a Programmer." To AI engines like ChatGPT and Perplexity, though, it is barely visible: it scores 4.5 out of 10.

On the page itself the strengths are clear: a clear heading structure, crawler access and the files AI engines look for and sitemaps and entity links AI can follow. What holds it back is structured data describing the business, a clearly stated business identity and credibility markers like credentials or reviews.

Off the page, almost no other sites link to it, the domain does not yet read as established, AI engines do not yet recognise it as a distinct business, there is no press coverage to draw on, nobody is discussing it where AI engines look and it does not come up on Reddit. Those are earned elsewhere on the web, not fixed on the site itself.