The useful split here is fetch readiness vs citation myths. Watching homepage PSI while bots hit long-tail URLs that time out or return a JS shell is a common mismatch. Checking that the primary content is in the first HTML response, and monitoring the paths logs actually show, is the access layer before anyone argues about schema or “AI rankings.” That’s the same readable-HTML check we care about with Prerender Buddy: can the crawler get real text without executing the app.