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Grade CR-108Measurement

Citation tracking

AI visibility must be measured directly, by sampling the real engines with a fixed intent set and recording brand mentions and citations, for two reasons. Referral analytics see only a sliver of AI engagement: Cloudflare measured OpenAI's crawlers fetching about 1,091 pages per referred visitor and Anthropic's about 38,066 in July 2025. And model outputs are non-deterministic: Anthropic states that even at temperature 0 results are not fully deterministic, and OpenAI states outputs may differ from request to request, with a fixed seed giving only mostly consistent results. Repeated sampling with confidence intervals is therefore required.

Sources

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CGrade C: reputable industry data or observation. A grade describes the provenance of the sources above; it is not a probability that a change will work. The effect basis says how the size of the effect is known: measured by a study, taken from an industry report, only documented without a size, or not quantified.

Put this evidence to work

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