ertw

ertw describes itself simply: "Sean's blog The old Cramsession Linux Newsletter The EngineeringWiki with links and information for Engineers, and Engineers-To-Be A list of all Sean Walberg's writing I am a volunteer with." To AI engines like ChatGPT and Perplexity, though, it is barely visible: it scores 3.8 out of 10.

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

Away from its own site, other sites link to it. There is some, but not much, sign that the domain is only lightly established and there is little discussion of it. Beyond that, AI engines do not yet recognise it as a distinct business, there is no press coverage to draw on and it does not come up on Reddit. Those are earned elsewhere on the web, not fixed on the site itself.

AI crawlers have visited 2 times in our tracking, including ClaudeBot (Anthropic). There is not much on the page to read either, about 49 words. The site links to no social profiles, so there is nothing tying the brand to a wider presence.