AI Overview
Google writes an answer above the results and credits a handful of sources.
Measured 2026-W36 · 2026-08-31 · google.com, gl=us
Prevalence
It is the block that decides whether anyone reaches page one at all, and the only one that names its sources.
By topic
By search intent
| Intent | Queries | AI Overview |
|---|---|---|
| commercial | 1,264 | 37.5% |
| informational | 1,995 | 67.8% |
| comparison | 537 | 40.2% |
| navigational | 194 | 15.5% |
| support | 195 | 28.2% |
Intent is assigned when a query enters the corpus, so this split does not drift as results change.
How this is measured
Every query in the corpus is run once a week through one endpoint, from the United States, in English, with autocorrect on. A block counts as present when the response contains it — Google omits the key entirely when it renders nothing, so presence is unambiguous rather than inferred from an empty array.
curl --request GET \
--url 'https://serpens.p.rapidapi.com/api/v1/search_ai_overview?q=what%20is%20retrieval%20augmented%20generation&gl=us&hl=en&format=json' \
--header 'x-rapidapi-host: serpens.p.rapidapi.com' \
--header 'x-rapidapi-key: YOUR_KEY'Other blocks: people also ask, related searches, knowledge graph, sitelinks.
Get the same block data
One call returns the overview, its citations, People Also Ask, related searches and sitelinks together.