AI Source Index · one engine · 2026-W41

The most-cited websites in Gemini answers — updated weekly

In week 2026-W41, measured 5 October 2026, the websites Gemini cited most were reddit.com (25 questions, 63%), youtube.com (23 questions, 57%) and forbes.com (9 questions, 23%). Each count is the number of the 40 questions it answered whose answer cited that site at least once.

Week 2026-W41, measured 5 October 2026. One sample per engine per question; a difference of one or two questions is noise, not a trend.

What stands out

We ask Gemini through the Gemini API with Google Search grounding. Its grounding redirects are resolved to the real site before a domain is counted, and dropped where they cannot be.

This week its 40 answers cited 340 different websites, 10.7 per answer on average — more per answer than any other engine on the panel (across the 6 engines: 3.4 to 10.7).

3 of its 40 answers cited no website at all.

Among the source types we classify, media sites were its largest group, at 7% of its citations (a domain counts once per answer); 80% matched no type — retailers, vendors’ own sites and the rest.

The 25 most-cited websites

DomainTypeQuestionsShare (95% interval)vs week before
reddit.comcommunity25 / 4063% (47–76%)−1 (from 26)
youtube.comsocial23 / 4057% (42–71%)+3 (from 20)
forbes.commedia9 / 4023% (12–38%)+1 (from 8)
dev.toother5 / 4013% (5–26%)+3 (from 2)
blog.hubspot.comother3 / 408% (3–20%)+2 (from 1)
cnet.commedia3 / 408% (3–20%)+1 (from 2)
medium.comother3 / 408% (3–20%)−1 (from 4)
northflank.comother3 / 408% (3–20%)+1 (from 2)
blog.railway.comother2 / 405% (1–17%)new
devopsboys.comother2 / 405% (1–17%)+1 (from 1)
dreamlit.aiother2 / 405% (1–17%)new
gagadget.comother2 / 405% (1–17%)−1 (from 3)
investor.vanguard.comother2 / 405% (1–17%)new
kiplinger.commedia2 / 405% (1–17%)+1 (from 1)
klaviyo.comother2 / 405% (1–17%)new
mailtrap.ioother2 / 405% (1–17%)±0
mibrofit.comother2 / 405% (1–17%)new
monday.comother2 / 405% (1–17%)+1 (from 1)
moneysupermarket.comother2 / 405% (1–17%)+1 (from 1)
pcmag.commedia2 / 405% (1–17%)+1 (from 1)
pipedrive.comother2 / 405% (1–17%)+1 (from 1)
quora.comcommunity2 / 405% (1–17%)+1 (from 1)
rtings.commedia2 / 405% (1–17%)±0
saucelabs.comother2 / 405% (1–17%)new
theguardian.commedia2 / 405% (1–17%)+1 (from 1)

Share = questions whose answer cited the site at least once, out of the 40 this engine answered. The interval is a 95% Wilson score interval; “thin sample” marks an interval wider than a third of the scale, where the rate cannot be read off the sample.

The change column compares with 2026-W40, a week in which this engine answered the same number of questions under the same panel. A move of one or two questions is noise, not a trend.

Method

A fixed, published panel of 40 buyer questions in English is put once to each of 6 answer engines every Monday. Every URL an answer cites is stored, and a domain counts once per question per engine. One sample per engine per question.

How we measureEvery observation behind 2026-W41, as JSON (this engine’s rows carry "engine": "gemini")

The same week, other engines

Most-cited sites in PerplexityMost-cited sites in ChatGPTMost-cited sites in ClaudeMost-cited sites in Google AI OverviewsMost-cited sites in Google AI Mode

The full AI Source Index