Original Research · May 2026

Turkey's thermal resort timeshare industry, through AI's eyes.

Turkish thermal resorts sit at an awkward intersection: a regulated property category (devre mülk), a lifestyle product (wellness tourism), and a reputation-sensitive market with active consumer complaints in the public record. We asked ChatGPT and Google AI Overview 198 questions across Turkey, Germany's Turkish diaspora, and the UAE. We found a category where AI is already making consequential recommendations, citing legal language, and quietly building its own competitive set.

Data collected May 26, 20262 engines · 4 markets · 3 languages
198
AI Queries
33
Prompts
80+
Competitors Surfaced
1,082
Citations Analyzed
260
Source Domains
Finding 01 · The Sentiment Problem

AI doesn't just cite the complaints. It uses legal language.

When users ask AI about Turkey's most-searched thermal resort, the engines don't simply summarize positive marketing. They synthesize phrases like "license revocation lawsuits" and "exorbitant fee increases" directly from Şikayetvar threads. These are the actual words AI returned in our study.

Turkey · TurkishGoogle AIO

...vaat edilen hizmetlerin sunulamaması ve fahiş aidat artışları, ruhsat iptal davaları...

→ "...failure to deliver promised services, exorbitant fee increases, license revocation lawsuits..."

Germany · Turkish diasporaGoogle AIO

...Frankfurt'taki satış ve pazarlama ofisi... proje geçmişte imar davaları ve yüksek aidat artışları gibi konularda tüketici şikayetlerine konu olmuştur.

→ AI tied the brand's Frankfurt sales office directly to zoning lawsuits and high fee disputes, on a German diaspora query.

Turkey · TurkishChatGPT

...kullanıcı yorumları çok karışık ama genel eğilim daha çok olumsuz.

→ "...user reviews are very mixed but the general trend leans more negative." AI made an explicit overall judgment.

Turkey · TurkishChatGPT

...son yıllarda aidat artışları ve yönetim uygulamaları konusunda çok sayıda şikayet birikmiş durumda.

→ "...in recent years, numerous complaints have accumulated about fee increases and management practices."

What the sentiment audit shows

37% of AI mentions for the category's biggest brand are classified negative. Şikayetvar is cited 4× more often than the brand's own site.

Of 82 mentions of Turkey's most-cited thermal timeshare property, 30 were classified negative, 22 positive, 22 neutral. The brand's own domain was cited 30 times. Şikayetvar was cited 125 times, the second-most-cited domain in the entire study. The reputation channel isn't a side effect. It's the dominant signal AI uses to answer "is this brand trustworthy?"

Finding 02 · The Shadow Competitor Set

The named competitors aren't the competitors. AI built its own shortlist.

Brands in this industry tend to define their competitive set by location and category, "the other thermal resorts in our region." AI doesn't think that way. It pulled from a much wider pool of properties, including a parade of names no one in the industry would have predicted.

Top 12 shadow competitors AI surfaced unprompted

Wome Deluxe22Adenya Hotel & Resort24Bera Alanya13Selge Beach Resort12Angel's Marmaris10Korel Thermal Afyon9Akrones Thermal Spa8Adin Beach Hotel8NG Afyon Wellness7Şah Inn Paradise7İkbal Thermal Hotel6Kaya İzmir Thermal5

...and the international timeshare giants that quietly entered the frame

Hilton Grand Vacations5Marriott Vacation Club5Premium Vacation Club5RCI4
Strategic implication

AI categorizes Turkish thermal timeshares alongside global vacation ownership brands, not just Turkish hotels.

When AI was asked about devre mülk investment and vacation ownership, it didn't stay inside the Turkish category. It crossed into international timeshare ecosystems: Hilton Grand Vacations, Marriott Vacation Club, RCI, Premium Vacation Club. That's a massive positioning insight. Brands that benchmark only against Turkish competitors are mis-pricing their AI competition set by an order of magnitude.

Finding 03 · The Hidden Ranking Layer

Google AI Overview's #1 source isn't a website. It's Google Maps.

Initial citation logs showed "google.com" as the most-cited domain, 99 times. Drilling in, every one of those citations was a Google Places business profile, each resolving to a specific Turkish thermal hotel. Google AI Overview is using its own Maps graph as a competitor knowledge base.

01
google.com (Places / Maps listings)Business profiles
99
02
sikayetvar.comComplaint platform
125
03
halalbooking.comAggregator
52
04
instagram.comSocial
37
05
tripadvisor.com (+ .com.tr)Reviews
32
06
sahibinden.comReal-estate classifieds
29
07
hepsiemlak.comReal-estate classifieds
17
08
eksisozluk.comUser commentary
11
What this means for AIO optimization

A strong Google Business Profile is the unspoken AI ranking factor for this category.

Across 99 citations, Google AI Overview pointed to roughly 80 unique thermal hotel Maps listings, from Wyndham Afyonkarahisar and DoubleTree Antalya to small operators like Vadi Termal and Garden Kale Termal. None of these brands were "ranking" through traditional SEO. They were surfaced because they exist as well-maintained Google Business entities. For any Turkish hotel hoping to be cited in AIO, the work isn't only on the website. It's on the Maps profile: claim it, verify it, fill out the description, post photos, respond to reviews. That is the cheapest AI visibility investment in the category.

Finding 04 · The Aggregator Monopoly

For halal-travel queries in English, one site owns AI.

We tested four English-language UAE prompts targeting halal-friendly travel and Muslim-family resort discovery. Across every single one, a single domain dominated AI's recommendation layer. It wasn't a hotel brand.

01
HalalBooking · visibility score 96.1
27
mentions
02
rihaala.com
23
citations
03
halalworld.com
10
citations
04
halaltravelworld.com
9
citations
05
muhafazakarhotels.com
8
citations
The aggregator gate

Across 4 English UAE halal-travel prompts, zero queries surfaced any Turkish resort directly. HalalBooking captured 11 mentions.

For brands targeting Gulf travelers in English, AI visibility is essentially impossible to win head-on. The discovery layer is owned by aggregators. The path forward isn't to compete with HalalBooking for AI surface area. It's to be the top-rated, most-detailed, most-photographed listing inside HalalBooking, because that is where AI will eventually pull from. The same gate Booking.com built for traditional hotels, replicated for halal-travel, now reinforced by AI engine behavior.

Finding 05 · Markets & Languages

The diaspora knows more than the homeland. The Gulf knows less.

We split prompts across four market/language pairs to see whether the same brand was visible to different audiences. The result wasn't symmetric.

MarketLanguagePromptsDominant BrandTotal Mentions
TurkeyTurkish17Sinpaş Kızılbük · 59 mentions154
TurkeyEnglish7Sinpaş Kızılbük · 15 mentions52
GermanyTurkish (diaspora)5Sinpaş (parent) · 9 mentions20
UAEEnglish4HalalBooking · 11 mentions14

Germany / Turkish diaspora

4.0

Average tracked mentions per diaspora prompt. The diaspora segment surfaces Sinpaş, Hattuşa, Mola İstanbul, and the rebrand entity within just 5 prompts. Turkish-language queries from Germany pull on a deep, brand-aware source base. Diaspora intent is the highest-quality discovery channel for any Turkish thermal brand.

UAE / English halal-travel

3.5

Average tracked mentions per UAE prompt, almost entirely concentrated on HalalBooking. Across 4 prompts targeting Gulf travelers, no Turkish-owned thermal brand was surfaced directly. AI's GCC consideration set runs through halal-travel aggregators, not through brands.

Finding 06 · How the Two Engines Differ

ChatGPT cites the brand. AI Overview cites the directory.

The two engines we tested pulled from fundamentally different source ecosystems, with a clear pattern in who gets surfaced.

◎
ChatGPT
OpenAI GPT-5.4 · web-grounded
Brand-first

Surfaced the Sinpaş corporate parent 47% more often than AIO. Preferred brand-owned URLs and editorial sources.

◉
Google AI Overview
Gemini-powered overview
Graph-first

Leaned heavily on Google Places (99 citations), HalalBooking (100% more than ChatGPT), and TripAdvisor. Surfaces directory entities, not just brand sites.

Optimization implication

Different engines reward different work.

Winning ChatGPT means investing in your brand site, your editorial mentions, and your own content architecture. Winning Google AI Overview means investing in your Google Business Profile, your aggregator listings (HalalBooking, TripAdvisor, halal-travel sites), and your TripAdvisor presence. Most brands try one strategy. The category leaders will run both.

Hypothesis Scorecard

What we predicted. What the data showed.

Seven pre-registered hypotheses from the May 14 study brief, scored against the 198-query dataset.

H1Not confirmed

Thermal timeshare brands have near-zero AI visibility across all properties.

The leading property surfaced 82 times. The category has visibility, it's just often negative or shared with aggregators.

H2Confirmed

AI surfaces Şikayetvar / Ekşi Sözlük when properties are queried by name.

Şikayetvar is the #2 most-cited source (125 hits). AI synthesizes phrases like "ruhsat iptal davaları" directly from complaint platforms.

H3Confirmed

Turkish vs English queries return substantially different brand mixes.

Turkish-language queries pull on Şikayetvar, Sahibinden, Hepsiemlak. English queries pull on HalalBooking, TripAdvisor, halal-travel aggregators. Completely different ecosystems.

H4Confirmed

UAE shows strong discovery intent but near-zero direct brand presence.

Zero Turkish thermal brands surfaced directly across 4 UAE prompts. HalalBooking captured the entire halal-travel discovery layer.

H5Partially confirmed

AI doesn't understand the devre mülk ownership model. Defaults to booking language.

Direct ownership queries surfaced Sahibinden (real-estate classifieds) 29 times and international timeshare brands (Hilton Grand Vacations, Marriott Vacation Club). AI does understand ownership, but doesn't always pick Turkish brands as the answer.

H6Confirmed

Turkish diaspora in Germany discovers the category differently than domestic users.

Diaspora prompts pulled the densest brand-aware result set in the study (4.0 brand mentions per prompt). The Frankfurt sales office was surfaced, alongside the lawsuits attached to it.

H7Not supported

Gemini performs best for Turkish; ChatGPT dominates English / diaspora.

Google AI Overview (Gemini-powered) led on the top brand's mention count across all four markets including English. Diaspora effect held but wasn't engine-specific.

Methodology

How the study was run.

Research Design

33 prompts × 2 engines × 3 runs = 198 queries. Prompts distributed across 4 market/language pairs: Turkey/TR (17), Turkey/EN (7), Germany/TR diaspora (5), UAE/EN (4). All prompts web-grounded via OpenRouter :online models, temperature 0.7 for natural variation.

AI Engines Tested

  • OpenAI · GPT-5.4 web-grounded
  • Google AI Overview · Gemini-powered

Selected as the two dominant consumer-facing AI surfaces, together accounting for the majority of AI-mediated search traffic globally in 2026.

Data Pipeline

AIVO Research Engine. Supabase edge functions for query orchestration, n8n workflow for batch lifecycle management, Claude Haiku 4.5 for brand and citation extraction. Citation domains de-duplicated and classified (Places, aggregator, complaint, review, classifieds, social, brand-owned).

Study Period

Data collected May 26, 2026 in a single orchestrated run lasting ~11 minutes. Analysis and reporting same-day. 10 named brands tracked; 80+ shadow competitors extracted from AI responses; 260 unique citation domains analyzed.

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