What's changed in the free AI Visibility Check tool, most recent first.
Added detection for whether a site's robots.txt file blocks named AI crawlers specifically — GPTBot, ClaudeBot, PerplexityBot, Google-Extended, and CCBot — rather than only checking for a generic site-wide block. This is the single most direct technical signal for AI visibility, and most scanning tools don't check it. Also added: llms.txt presence detection, and Bing Webmaster verification detection, since ChatGPT's browsing runs on Bing's index rather than Google's.
Renamed "AI Readiness" to "AI Crawlability" and narrowed its scope to crawler access only. Moved heading structure checks into a new "Content Machine-Readability" category, since heading hierarchy is a content-shape signal, not a crawler-access one. Removed a duplicate HTTPS check that had been counted in two categories at once. Removed meta description length from scoring entirely — it affects Google's search snippet display, not what any LLM uses to decide whether to cite a page.
Replaced the granular, item-by-item fix list with a category-level diagnosis (e.g. "Entity Authority — Needs to be established") ordered from most to least urgent. The full technical fix list remains available in the paid AI Visibility Audit.
Fixed three false-negative bugs: Organization schema nested inside a @graph array was not being detected by one internal check even though it was correctly detected by another; a Team/Author page was only recognized if its URL contained "/team" or "/author", missing the common pattern of a named individual's own bio page; and a findable email was only recognized if the raw address appeared in visible page text, missing valid mailto: links.
Initial launch of the AI Visibility Check, scoring any site's homepage across five categories: Schema & Structured Data, Entity Authority, AI Crawlability, Trust Signals, and Content Machine-Readability.