PhyDemo

PhyDemo describes itself simply: "Open-source Physics Demos & Apps Ray Optics Simulation A web app for creating and simulating 2D geometric optical scenes, with a gallery of (interactive) demos." To AI engines like ChatGPT and Perplexity it is partially visible, scoring 5.8 out of 10, readable in places and missing in others.

The page falls short on a heading structure that lays out what it offers, the technical files AI engines look for, such as llms.txt or an open robots.txt, structured data describing the business, a clearly stated business identity, credibility markers like credentials or reviews and sitemaps and entity links AI can follow.

Away from its own site, other sites link to it and people discuss it in places AI engines read. There is some, but not much, sign that the domain is only lightly established and it barely surfaces on Reddit. Beyond that, AI engines do not yet recognise it as a distinct business and there is no press coverage to draw on.

AI crawlers have visited 2 times in our tracking, including ClaudeBot (Anthropic). The site links to no social profiles, so there is nothing tying the brand to a wider presence.