10 checks across discoverability, parsability and agent affordances — the same dimensions Lighthouse's new Agentic Browsing category cares about.
llms.txt
The emerging standard for giving agents a curated map of your site. Now part of Chrome Lighthouse’s Agentic Browsing audits.
AI crawler policy
Does your robots.txt welcome or block GPTBot, ClaudeBot, PerplexityBot and 10+ other AI crawlers — on purpose or by accident?
Structured data
JSON-LD tells agents what your business, products and prices actually are, instead of making them guess.
Content extractability
JS-only shells are invisible to most agents. We measure what an agent actually sees without a browser.
Agent affordances
MCP manifests, OpenAPI specs, security.txt — the interfaces that let agents act, not just read.
Meta, sitemap, feeds & speed
The boring fundamentals that decide whether agents can find, parse and trust your pages at all.