AI Citation Index — Week of 2026-10-19

This week in AI citations

Between 2026-10-19 and 2026-10-25, Tocho recorded 170 citation observations across Perplexity, ChatGPT, and Gemini.

Citations by model

• Gemini: 170 observations, 44 cited (25.9%)

Domain movers

The domains whose cite rate moved most week-over-week (minimum 3 observations in both weeks):

1. medium.com — 33.3% → 22.7% (-10.6pp, n=22/15)
2. dicasdeviagem.com — 46.2% → 46.7% (+0.5pp, n=15/13)
3. huffpost.com/ca — 0.0% → 0.0% (+0.0pp, n=15/4)
4. lenouvelliste.ca — 0.0% → 0.0% (+0.0pp, n=11/7)
5. chatelaine.com/fr — 0.0% → 0.0% (+0.0pp, n=10/7)
6. viagemeturismo.abril.com.br — 0.0% → 0.0% (+0.0pp, n=14/47)

Regional highlights

• br: 109 observations, 35.8% cite rate
• ca: 36 observations, 0.0% cite rate
• us: 22 observations, 22.7% cite rate
• mx: 2 observations, 0.0% cite rate
• cr: 1 observations, 0.0% cite rate

Methodology

Every number on this page is computed directly from Tocho's citation_observations table by an unattended script — no manual curation, no cherry-picking. See /methodology for how observations are collected, and /trends for the full historical archive.

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