{
  "slug": "ai-overview-serp-count",
  "name": "AI Overview average daily results-page count",
  "aliases": [
    "Average daily count of SERPs with an AI Overview",
    "AIO results-page denominator"
  ],
  "definition": "The average daily number of a segment's observed results pages that carried an AI Overview, the denominator of the AI Overview inclusion rate, and the same number for every domain.",
  "category": "Competitive SERP",
  "type": "raw measure",
  "unit": "average daily count of observed results pages carrying an AI Overview",
  "direction": "neutral",
  "verification": "verified",
  "calculation": "Read as a player-independent measure on the same dataset, it belongs to the results-page population, not to any domain, so it is selected once and returned with an empty competitor list. The semantic layer counts the distinct observed results pages and divides by the number of distinct observed days, so it is a per-day average rather than a period population size. Live-verified at 98,007 on the tenant used for the inclusion reconciliation, where 33,721.5 over 98,007 reproduces the displayed 34.41%.",
  "aggregation": "A per-day average: the count of distinct observed days is the divisor. Comparing two periods compares two daily averages, which is still the right way to watch the surface itself move, but multiplying it by the number of days does not give a period count.",
  "grain": "One segment × period × medium.",
  "dimensions": [
    "intent",
    "brand",
    "country",
    "device"
  ],
  "requiredFilters": [
    "segment_id",
    "selected_period",
    "serp_feature_filter"
  ],
  "sources": [
    "rank-tracking"
  ],
  "reports": [
    "ai-overview-report"
  ],
  "skills": [
    "serp-feature-watch",
    "ai-vs-traditional-gap",
    "anomaly-investigator"
  ],
  "verbs": [
    "competitive_overview",
    "competitive_trends"
  ],
  "rungs": [
    "R2"
  ],
  "levers": [
    "L2"
  ],
  "questions": [
    "Is Google showing AI Overviews on more of our tracked demand than before?",
    "Did the AI Overview population change between these two periods?"
  ],
  "interpretation": "A read on the surface itself rather than on your performance. A rising daily average with flat visibility means the answer box spread across more of your demand while your presence stood still, a market change, not a site change, and the most common reason an inclusion rate falls without anything going wrong.",
  "caveats": [
    "It is a per-day average, not a period population. The measure divides by the count of distinct observed days, so it answers \"how many AI Overview pages on a typical day\", never \"how many over the period\".",
    "It is player-independent: it is identical for you and for every tracked rival, so it never belongs in a competitive comparison column.",
    "It counts observed results pages in the tracked segment, not all results pages on the web.",
    "It is scoped by the AI Overview results-page feature filter the verbs inject."
  ],
  "freshness": "~1 day behind, Daily observation, available the following day.",
  "failureModes": [
    "Reporting it as \"the number of results pages that carried an AI Overview this period\", it is a daily average, and the period figure is larger.",
    "Presenting it per competitor, which implies a difference that cannot exist.",
    "Ignoring it when narrating an inclusion-rate move."
  ],
  "notSameAs": [
    {
      "slug": "ai-overview-inclusion",
      "why": "This is the denominator, a per-day average count of pages carrying the feature, while inclusion is your presence rate within that population."
    }
  ],
  "related": [
    "ai-overview-inclusion",
    "ai-overview-daily-visibility"
  ],
  "workflows": [],
  "lastVerified": "2026-08-04"
}