ChatGPT Citation Rates Vary Sharply by Topic – Travel Leads, Education Lags

By Coruja News Desk

A new analysis from Similarweb reveals that the likelihood of a ChatGPT answer containing an external link differs sharply by topic. In May 2026, travel answers included citations 22.6% of the time, while education answers carried links in only 4.8% of cases. The overall average across all topics stood at 6.8%.

The data comes from Similarweb’s 2026 Generative AI Landscape report, which tracks U.S. desktop usage of ChatGPT. The report is gated behind a download form, and all figures are marked as estimates and extrapolations from third-party sources. Still, the findings offer a useful benchmark for publishers and SEO professionals who want to understand where their content might appear in AI-generated answers.

Citation Rates by Sector

Similarweb ranked nine sectors based on the proportion of ChatGPT answers that included at least one citation. Travel topped the list at 22.6%, followed by retail at 13.5% and sports at 10.7%. Finance came in at 8.0%, slightly above the overall average. Technology, health, media and entertainment, and education all fell below the average, with education at the lowest.

The pattern suggests that ChatGPT is more likely to pull from the web when users ask about topics that involve comparison, planning, or time-sensitive information. In contrast, subjects like education, which often rely on established knowledge, see fewer citations.

Key Data
Overall citation rate (May 2026)	8%
Highest sector	Travel (22.6%)
Lowest sector	Education (4.8%)
Source types most cited overall	Reviews/UGC (28.9%), News/publisher (26.0%)

Source Mix Differs by Topic

Beyond the frequency of citations, the types of websites cited also vary by sector. Across all ChatGPT answers, reviews and user-generated content (UGC) accounted for 28.9% of citations, while news and publisher sites made up 26.0%. Retail and e-commerce sites represented 14.1%.

However, the breakdown changes when zooming into specific topics. In beauty, retail and e-commerce sites dominated with 54.7% of citations. In travel, reviews and UGC accounted for 54.1%. For finance, finance-specific sites held 36.6% of citations, with news and publisher sites at 28.0%.

This means that a brand trying to appear in ChatGPT citations cannot rely on a single playbook. The types of content that get cited in one sector may not work in another. Publishers in the travel space, for example, may need to prioritise authentic reviews and user-generated content, while finance brands should focus on sector-specific authority and news coverage.

Overall Trend and Caveats

The report notes that the overall citation rate has risen from about 1.3% in June 2025 to 6.8% in May 2026 – a more than fivefold increase. The rise was not linear: the rate climbed above 6% in October 2025, dropped to around 4.5% by February 2026, then rose again through spring.

It is worth remembering that Similarweb’s data covers only U.S. desktop usage. It does not include API usage, desktop applications, or AI features integrated into mobile apps. The source mix is based on the top 10,000 citations recorded in May, and the report itself states that all figures are estimates that may not be accurate or complete.

Separately, SEJ reported in April 2026 that Resoneo observed ChatGPT citing about 20% fewer websites per response after the GPT-5.3 Instant update. That finding looks at the number of domains per answer, while Similarweb’s report measures whether an answer contains any citation at all. Both metrics are relevant but capture different aspects of citation behaviour.

What This Means for Indian Marketers

For Indian SEO professionals and content strategists targeting English-language queries, the report reinforces the need to tailor content strategy by topic. If your audience is asking travel-related questions, citations are more common, and reviews and UGC carry more weight. If you operate in education or technology, the chance of being cited is lower, and the competition for those fewer slots may be higher.

The data also suggests that content quality alone is not enough. Understanding which citation types dominate in your sector – whether reviews, news, or e-commerce pages – can help prioritise content formats that are more likely to be referenced by ChatGPT.

Given that the citation rate is still evolving and subject to monthly fluctuations, it is wise to monitor trends rather than rely on a single snapshot. The report provides a starting point, but real-world results will depend on ongoing changes to ChatGPT’s retrieval behaviour and the broader AI landscape.

Source: Search Engine Journal, “ChatGPT Links Out Most On Travel Questions” by Matt G. Southern, July 27, 2026. https://www.searchenginejournal.com/chatgpt-links-out-most-on-travel-questions/583824/