Is the source panel the same as the citation chips?

No. The panel is usually wider and includes domains the summary never links inline.

What if Google does not render a panel for a prompt?

The response marks sources as unavailable for that sample so your averages are not diluted by nulls.

Google AI Overviews sources tracking

google_ai_overviewssourcesAnonymous

Beyond the citation chips, AI Overviews exposes a wider source set through its expansion controls. Nostimates captures that full panel so you can separate what Google consulted from what it chose to credit.

How it renders

An expandable panel behind the 'show more' control beneath the summary.

Sampling

Source panels are wider and more stable than inline citations, so they reach a usable confidence interval at lower n.

Gotcha

The panel does not always render. When it is absent we return the citation set only, flagged as such, rather than silently reporting a narrower number.

What the API returns

A single collection call against Google AI Overviews for the sources field, sampled n times and returned as one object per prompt.

{
  "engine": "google_ai_overviews",
  "field": "sources",
  "prompt": "best ai visibility tracking tool",
  "country": "GB",
  "language": "en",
  "n": 30,
  "sources": [
    {
      "url": "https://nostimates.com/docs",
      "domain": "nostimates.com",
      "inline": true,
      "sample_frequency": 0.7
    },
    {
      "url": "https://example.org/report",
      "domain": "example.org",
      "inline": false,
      "sample_frequency": 0.23
    }
  ]
}

GET /v1/collect?engine=google_ai_overviews&field=sources

Response fields

Key	Type	Notes
url	string	Source URL from the panel.
domain	string	Registrable domain.
title	string \| null	Panel title as rendered.
inline	boolean	Whether this source was also cited inline.
sample_frequency	float	Share of n samples containing this source.

What it costs

Included in the base collection wherever the engine exposes a panel.

See credit pricing →

Google AI Overviews sources FAQ

Is the source panel the same as the citation chips?: No. The panel is usually wider and includes domains the summary never links inline.
What if Google does not render a panel for a prompt?: The response marks sources as unavailable for that sample so your averages are not diluted by nulls.

Get the full AI Overview source set, not just the chips

Tell us the prompts and we'll show you the difference between the chips and the panel on your own category.

Other Google AI Overviews data

Citations Brand mentions Answer text Share of voice Sentiment Prompt volatility Position Locale variance

Across every engine

Compare how sources behaves on every engine we track.

Sources across all engines →