The Nutshell
the squirrelscan knowledge base. website audits, in a nutshell.
GEO & AI search
AI crawlers explained: GPTBot, ClaudeBot, PerplexityBot, and how to control them
A field guide to every AI crawler worth knowing, their exact user-agent strings, and a robots.txt decision framework so you block training bots without accidentally blocking your own AI visibility.
ReadChatGPT SEO: how ChatGPT actually finds and cites websites
ChatGPT SEO means two different things: getting found and cited by ChatGPT, and using ChatGPT as an SEO tool. Here's how the first one actually works, mechanically.
ReadGenerative engine optimization: what it is and how to actually do it
GEO means getting cited by ChatGPT, Perplexity, and Google AI Overviews instead of just ranking for a blue link. Here's what changed, what didn't, and a checklist you can run today.
ReadGenerative engine optimization tools: an honest roundup
GEO tools split into three jobs: tracking whether AI engines mention you, optimizing content to get mentioned, and auditing the technical plumbing that makes you visible at all. Here's what actually does each.
ReadWhat is llms.txt? The practical guide, with real examples
llms.txt is a plain Markdown file that tells AI agents what your site is and where the good stuff lives. Here's the exact spec, real examples, and the honest truth about who actually reads it.
ReadAI coding tools
Site health
Website security scan with AI: headers, hygiene, and what agents catch
Most sites are missing basic security headers, not fending off a targeted attack. Here's the hygiene an AI-assisted security audit actually finds, and how to let an agent patch it.
ReadCore web vitals: what LCP, INP, and CLS actually measure
Three metrics, three different failure modes, and a lab-versus-field distinction that trips up almost everyone the first time. Here's what each one measures and how to actually fix it.
ReadFix SEO issues with AI: the coding agent workflow that actually works
Point Claude Code or Cursor at a squirrelscan audit and it will fix a surprising amount on its own. Here's the real workflow, including the parts that still need you.
ReadComparisons
Lighthouse alternative: when you need a whole site, not one page
Lighthouse scores a single page really well. It has nothing to say about your other 400 pages, your broken links, or whether an AI agent can even parse your content.
ReadScreaming frog alternative: when a CLI crawler fits better
Screaming Frog is the desktop crawler everyone in SEO already knows. Here's when it's still the right call, and when a CLI-first, agent-readable tool fits the job better.
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