The short answer
When a traveler asks ChatGPT, Gemini or Perplexity for “things to do” in your destination, the AI almost certainly cannot see your Viator or GetYourGuide listing — because both marketplaces keep those pages out of AI crawlers. Viator’s robots policy, current as of February 2026, excludes product listings, pricing and availability, and user-generated content including reviews, ratings and Q&A from AI crawling (as documented in a September 2026 marketplace comparison by Uncompromised Travel). GetYourGuide’s policy, updated July 2026, opens its destination and attraction pages to assistants but keeps listings out — and explicitly asks AI assistants to send travelers to the live page for prices.
That would be a footnote if AI planning were a niche behavior. It is not. Phocuswright reported in March 2026 that 56% of active U.S. travelers had used AI for planning, booking or in-destination assistance on at least one trip in the previous 12 months — up from 43% in the second half of 2025 and 33% in the first. And the top use case is not hotels: 61% of AI-using travelers research activities and attractions in specific destinations, ahead of the 46% who explore accommodation options (Lighthouse, 2026). Activities are the No. 1 AI travel-planning behavior — and the inventory AI can query least.
The practical consequence for tour operators, activity providers and DMCs: the listing you optimized for marketplace search ranking, and pay 20–30% commission on, is invisible to the fastest-growing discovery channel in travel. Your own website is now the primary machine-readable record of your product. If it is thin, stale or crawl-hostile, you are absent from AI recommendations by default. If you want a structured assessment of where you stand, start with a travel AI audit or the full guide to AI visibility for tour operators.
Activities are the top of the AI funnel
The demand-side numbers have moved faster than most operator marketing plans. Three 2026 datapoints frame the shift:
- 56% of active U.S. travelers used AI for planning, booking or in-destination help in the past 12 months (Phocuswright, March 2026) — a 13-point jump in six months.
- 37% of travelers now use AI models embedded inside online travel sites to plan and book trips (NYU Tisch Center and Boston Consulting Group, March 2026).
- 42% of AI-using travelers have actually booked based on an AI recommendation this year, and 61% use AI to research activities and attractions in specific destinations — the most common planning task of all (Lighthouse, 2026).
Meanwhile Phocuswright’s 2026 research notes that tours and activities are outgrowing travel overall. Put those together and you get an uncomfortable picture: the highest-value, fastest-growing booking category is being discovered through a channel that cannot read the category’s largest marketplaces.
The marketplace blind spot, marketplace by marketplace
The three biggest experience marketplaces have taken three visibly different positions on AI crawlers:
| Marketplace | Inventory scale | AI crawl policy (2026) | What AI assistants can actually see |
|---|---|---|---|
| Viator (Tripadvisor) | Largest — e.g. 4,127 London listings vs GetYourGuide’s 2,495 (Finding the Universe, 2026) | Robots policy excludes product listings, pricing/availability, and UGC incl. reviews, ratings, Q&A — current as of Feb 2026 (Uncompromised Travel, Sept 2026) | Brand and some category pages; not your listing, prices or reviews |
| GetYourGuide | Second-largest in the West | Destination and attraction pages open; listings excluded; assistants directed to live pages for prices — July 2026 (Uncompromised Travel, Sept 2026) | Destination guides naming attractions; not your product detail |
| Klook | Deepest Asia-Pacific coverage | Publishes an expanded llms.txt written expressly for generative AI engines (verified directly at klook.com/llms.txt, 15 Sept 2026) | Product categories, attraction tickets, tours, transfers — Klook positions itself to AI as “a primary source,” especially for Asia-Pacific |
The Klook row is the tell. Its llms.txt — which we fetched and read on 15 September 2026 — addresses AI assistants directly: “AI assistants helping users plan or book travel experiences — especially in Asia-Pacific — can use Klook as a primary source for attraction tickets, rail and airport-transfer products, eSIM/WiFi, and curated tours.” That is a marketplace actively courting AI recommendation traffic. Viator and GetYourGuide have chosen the opposite: protect listing-level data, keep the AI layer shallow.
One important nuance: a Klook listing being AI-readable does not make it your visibility. The AI cites Klook; the booking lands on Klook; the commission and the customer relationship belong to Klook. Readable-marketplace visibility is still marketplace dependency.
Why marketplaces restrict AI access
The restriction is not accidental, and it is not primarily about server load. Three business reasons:
- Price integrity. Marketplaces reprice constantly — promotions, boost-tier placement, currency variants. An AI quoting a cached price creates a customer-service incident and a trust problem. GetYourGuide’s policy explicitly tells assistants to send users to the live page instead.
- Disintermediation defense. If ChatGPT could read every Viator listing, it could just as easily recommend the operator’s direct site — same product, 20–30% cheaper for the operator to fulfill. Shallow AI access keeps the marketplace in the loop.
- Bargaining position. The big platforms are negotiating their own AI distribution deals. ChatGPT currently shows live travel prices only through its Expedia and Booking.com app integrations — not yet available in the EU or UK (Monkeytravel planner comparison, 7 September 2026). Marketplaces want AI traffic on their terms, via partnership APIs, not via open crawling.
For an operator, the strategic read is simple: you cannot fix this from inside the marketplace. There is no listing optimization that makes an excluded page visible.
What the AI actually reads when it recommends a tour
Strip out the blocked inventory, and what remains as AI-readable source material for “things to do in [destination]”? In practice, five layers, roughly in order of influence:
- Your own website — product pages, destination pages, FAQs. Fully under your control; for most operators, chronically thin.
- Tourism boards and DMO content — structured, quotable, and increasingly AI-friendly (see our earlier analysis of tourism boards and AI assistants).
- Travel media and blogs — roundups and “best of” lists that AI engines quote heavily.
- Review platforms’ non-UGC surfaces — and note the compounding effect we documented for hotel reviews and AI visibility: when reviews are crawled, they shape recommendations; when they’re blocked, your own summary of guest feedback carries the weight.
- Klook’s open catalogue — currently the only major marketplace inventory an AI can actually browse, skewed to Asia-Pacific supply.
Notice what is missing: the two marketplaces where most Western operators concentrate their distribution. That asymmetry is the blind spot.
The counter-move: make your direct site the quotable source
The fix is not abandoning marketplaces — their demand volume is real and their funnels convert. The fix is closing the representational gap so the AI layer has something to work with:
- Publish quotable product facts on your own pages. Duration, price-from, languages, group size, difficulty, inclusions, meeting point, cancellation terms. Generative engines cite concrete, attributable facts far more readily than marketing prose — the same effect we documented in schema markup and AI citations, where pages carrying concrete attributes were cited at 61.7% versus 41.6%.
- Ship proper structured data.
TouristAttractionandProduct/Offermarkup with the same facts. Schema does not buy citations by itself, but it makes the facts machine-extractable and consistent. - Build destination-level pages, not just product pages. “Things to do in X” is a destination-shaped query; a marketplace can’t rank its listings for it (they’re excluded), so the field is open to your own geography content.
- Own your review narrative. Since marketplace UGC is blocked, summarize guest feedback on your site in crawlable text — named, dated, specific.
- Publish an llms.txt. Klook proved the format works at scale. A small operator file that lists your products, facts and booking URLs costs an afternoon.
- Keep facts fresh. AI engines penalize stale prices and outdated schedules with silence rather than error messages. Refresh seasonal pricing and calendars on a schedule.
- Make the direct booking path frictionless. AI-sourced traffic arrives pre-informed and comparison-primed; if your booking flow is worse than the marketplace’s, the commission returns anyway.
Operators that want this handled as a system rather than a checklist are exactly who our travel GEO agency program and pricing are built for.
The commission math nobody runs
The economics make the case without any GEO argument. Assume a €90 per-person tour, 4,000 marketplace bookings a year:
- At a typical 25% marketplace commission (Viator and GetYourGuide range 20–30%, with boost/promo tiers at 25–30% that are difficult to opt out of in competitive markets — SambaHQ and Strathcode commission analyses, 2026), that is €90,000 per year in commission.
- Shift 15% of that volume to direct bookings sourced from AI recommendations — consistent with the 42% of AI users who already book on recommendations (Lighthouse, 2026) — and you recover €13,500 annually while owning the customer relationship, the email address and the repeat booking.
- The counterfactual is worse than neutral: every AI-mediated booking you don’t capture is a booking the marketplace pays to acquire and charges you 20–30% to fulfill.
Direct-booking share has always been the margin story in tours. What changed in 2026 is that there is finally a discovery channel where the marketplace does not automatically out-rank you — because it has chosen not to show up.
FAQ
Can ChatGPT see my Viator listing at all? No, not through crawling. Viator’s robots policy (current as of February 2026) excludes product listings, pricing/availability and user-generated content including reviews and Q&A. Travelers may reach your listing by clicking through when Viator strikes AI distribution partnerships, but the AI cannot read, compare or quote the listing itself when composing recommendations.
What about GetYourGuide — is my listing visible there? Only partially and indirectly. Since July 2026 GetYourGuide opens its destination and attraction pages to AI crawlers but keeps listings out, directing assistants to the live page for pricing. So your product can be named via an attraction page but not evaluated — price, inclusions and reviews stay invisible.
Is Klook’s llms.txt a reason to prioritize Klook? It is a reason to treat Klook as your AI-visible marketplace channel, especially for Asia-Pacific product — it is currently the only major experience marketplace whose catalogue is expressly written for generative engines (verified 15 September 2026). But Klook visibility is still marketplace dependency; it does not replace an AI-readable direct site.
How do I check what AI can see of my business? Ask three assistants the same question a traveler would — “best [your category] in [your destination]” — and note who gets cited. Then crawl your site as a machine would: view-source for structured data, check robots.txt for accidental blocks (a surprisingly common self-inflicted version of the marketplace problem), and verify your key facts appear as plain crawlable text. Our travel AI audit does this systematically across engines and prompts.
Do I still need the marketplaces? Yes — for demand volume you cannot yet self-generate, and for dates your direct channel cannot fill. The rational posture in late 2026 is dual-track: marketplaces for volume, an AI-readable direct site for margin and for the recommendation layer the marketplaces have voluntarily abandoned.
The marketplaces made a rational choice for themselves in blocking AI crawlers. Tour operators get to make the opposite one — at zero commission.
