Closed Door Security

Closed Door Security is a business whose own site puts it this way: "Leading cybersecurity consultancy providing penetration testing, security assessments, and compliance services. Founded 2019 in Scotland with global reach. CREST certified experts." To AI engines like ChatGPT and Perplexity, though, it is barely visible: it scores 4.8 out of 10.

On the page itself the strengths are clear: a clear heading structure, visible credibility markers and sitemaps and entity links AI can follow. It is passable on a partly stated business identity. What holds it back is structured data describing the business and the technical files AI engines look for, such as llms.txt or an open robots.txt.

Off the page there is only faint evidence that only a handful of sites link to it and it barely surfaces on Reddit. Beyond that, 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 and nobody is discussing it where AI engines look. Those are earned elsewhere on the web, not fixed on the site itself.