TL;DR: In a 100-listing audit across ChatGPT, Perplexity, and Gemini, citation rate rose from 12% for prose-only listings to 71% for listings with full structured geo data. The three signals that moved the needle most were verified geo coordinates, nearby-context fields, and NAP consistency across platforms.
Over the first two weeks of April 2026 we ran a controlled audit across 100 location-based listings to answer one question: how much does structured geo data actually change the rate at which an AI assistant cites a listing?
The answer, in short, is that it changes it by roughly six times between the worst and best buckets. What follows is the full methodology, the per-bucket results, and the practical implications for anyone optimizing a listing for AI search.
Methodology
Listings. 100 listings across four verticals: 30 vacation rentals, 25 boutique hotels, 25 independent restaurants, 20 local attractions. Geographies spanned 14 European cities to limit single-market bias. All listings had an active, indexable homepage and at least one third-party directory presence.
Query set. Fifteen discovery-intent prompt templates per listing, covering generic discovery ("quiet boutique hotels in Porto"), feature-specific discovery ("hotels in Porto walkable to the metro"), and named recall ("is Casa do Vale a good guesthouse in Porto"). Every template was issued fresh, without conversation history, in a clean session.
Models. ChatGPT (GPT-5 class), Perplexity, Gemini. Each prompt was issued once per model, giving 45 responses per listing and 4,500 responses in total.
Scoring. A response counted as a citation if the listing appeared as a linked source, was named explicitly in the answer, or both. Partial name matches were hand-reviewed to reject false positives.
Bucketing. Each listing was scored by the MapAtlas AEO Checker across 29 structured signals, then grouped into four completeness buckets. Bucket thresholds were set before scoring began.
Headline Result
The citation rate gap between the bottom and top buckets was larger than we expected.
Source: MapAtlas benchmark, April 2026, n=100 listings, 4,500 responses.
The bottom bucket, listings with rich prose but no structured data, achieved a 12% citation rate. The top bucket, listings with complete Place schema, verified geo coordinates, nearby-context fields, FAQ schema, and consistent NAP across platforms, reached 71%.
Signal-by-Signal Breakdown
To understand which individual signals drove the top-bucket result, we ran a feature-ablation analysis. For each of the six highest-weighted signals, we compared citation rates among listings that had the signal against listings that did not, holding other variables approximately constant.
| Signal | With signal | Without signal | Lift |
|---|---|---|---|
Complete Place JSON-LD with geo | 58% | 19% | 3.1x |
| Verified nearby POI data | 62% | 24% | 2.6x |
| Transit-proximity fields | 54% | 22% | 2.5x |
| FAQ schema with location questions | 49% | 26% | 1.9x |
| NAP consistency across 3+ platforms | 56% | 21% | 2.7x |
| External identifier (Wikidata / Place ID) | 51% | 27% | 1.9x |
Source: MapAtlas benchmark, April 2026.
Four takeaways from this table:
- Geo coordinates are the single strongest lift. A Place block without
geoperforms only marginally better than no schema at all. - Nearby context is nearly as strong. Proximity to named POIs and transit is the second-biggest predictor of citation.
- FAQ schema helps, but less than location-specific signals. FAQs that answer location questions ("how far is the nearest metro") outperformed generic operational FAQs by a wide margin.
- External identifiers punch above their weight. Reconciling a listing to a Wikidata QID or Google Place ID nearly doubled citation rate in the ablation, likely because it lets AI systems deduplicate across sources.
Vertical Differences
The effect size was not uniform across verticals. Vacation rentals, which start from the weakest baseline, showed the largest absolute gains from structured data. Landmarks, which are already well-represented in training data, showed the smallest.
| Vertical | Bottom bucket | Top bucket | Gap |
|---|---|---|---|
| Vacation rental | 7% | 68% | +61 |
| Boutique hotel | 14% | 74% | +60 |
| Independent restaurant | 13% | 69% | +56 |
| Local attraction | 18% | 72% | +54 |
Source: MapAtlas benchmark, April 2026.
Vacation rentals are the clearest win. A listing that starts invisible can become a consistently cited source through structured data alone. The effect is weaker, though still significant, for venues that already have strong public representation.
What the Model Actually Does
During qualitative review of 200 responses, a recurring pattern emerged. When a listing had complete structured data, the assistant tended to quote specific facts: walk time to the station, number of restaurants within 300 metres, neighbourhood name, opening hours. When the same listing was stripped of its structured data, the assistant either omitted it entirely or described it in generic terms.
This aligns with how retrieval-augmented models tend to behave. They preferentially cite sources that answer the question with concrete, verifiable facts. Prose that describes a listing as "quiet and walkable" loses to a structured field that states "walk score 92, noise index 18 dB average." The second version is easier to extract, easier to compare against the user's query, and easier to attribute.
What Moves a Listing From Bucket 1 to Bucket 4
Based on the ablation, four changes account for most of the lift:
1. Add a complete Place or LodgingBusiness JSON-LD block with geo coordinates. Coordinates that match the postal address, a canonical external identifier, and all required Schema.org fields. Google's own structured data guidance for local business lists the fields that carry the most weight. See JSON-LD schema for local business AI citations for field-level specifics.
2. Enrich the listing with verified nearby context. Walk times to the nearest transit stops, counts of nearby restaurants and cafes, named POIs within a defined radius. MapAtlas GeoEnrich generates this at scale from verified sources so it can be embedded in both schema and page copy.
3. Publish location-specific FAQ schema. Questions that map directly to how users phrase location queries. See location-specific FAQs for AI search.
4. Reconcile NAP across platforms. The listing homepage, Google Business Profile, and at least one third-party directory should all show the same name, address, and phone. NAP consistency for AI search covers the mechanics.
Caveats
This benchmark is directional, not definitive. Three limitations worth stating:
- Sample size. 100 listings is enough to see large effects but not to resolve fine-grained differences.
- Model drift. AI assistants update frequently. The absolute numbers will shift; the relative ordering of signals is more stable.
- Query mix. Our templates lean toward discovery intent. Transactional queries ("book a room in Porto tonight") are routed differently and were out of scope.
The broader point is not the precision of any single number. It is that the gap between structured and unstructured listings is large, measurable, and largely closable through work that sits within the listing owner's control.
Measure Your Own Baseline
The MapAtlas AEO Checker scores a listing against the same 29 signals used in this benchmark. Run it on your top-performing property, then on your weakest. The delta in the score usually matches the delta in how often each one is surfaced by AI assistants in practice.
Citation rate is becoming the analogue of organic ranking for the generation of users who search through AI. The listings that win are the ones that give the model something to extract. Everything else is prose the model will politely ignore.
Related reading:
- Why AI assistants hallucinate addresses
- SEO was keyword to keyword, now it is database to database
- Location-specific FAQs for AI search
- Check your AI visibility score for free
Frequently Asked Questions
What is an AI citation rate?
AI citation rate is the share of relevant user queries where an AI assistant includes a specific listing in its cited sources or mentions the listing by name in its answer. It is the AI-search equivalent of organic ranking, but measured at the answer level rather than the results-page level. A listing with a 40% citation rate appears in two out of every five relevant answers across the tested assistants.
How was this benchmark conducted?
We selected 100 listings across four verticals: vacation rentals, boutique hotels, independent restaurants, and local attractions. Each listing was queried 15 times across ChatGPT, Perplexity, and Gemini using a standard template of discovery-intent questions. Responses were scored for whether the listing appeared as a cited source or a named recommendation. Listings were then bucketed by their structured data completeness as measured by the MapAtlas AEO Checker.
What had the biggest effect on citation rate?
Three signals moved the needle most: presence of a complete Place or LodgingBusiness JSON-LD block with geo coordinates, verified nearby context such as transit times and proximity to named POIs, and NAP consistency across Google Business Profile, the listing homepage, and at least one third-party directory. Listings scoring high on all three had citation rates roughly six times higher than listings scoring low on all three.
Did prose descriptions alone help at all?
Marginally. Long prose descriptions containing location keywords but no structured data produced a baseline citation rate of around 12%. Adding Schema.org markup without verified geo fields raised it to roughly 28%. Adding verified nearby context and consistent NAP data raised it further, to roughly 71% for the best-scoring bucket. Prose quality matters for user trust once a listing is cited, but has limited effect on whether the listing gets cited in the first place.
How can I measure my own citation rate?
Run your listing URL through the free MapAtlas AEO Checker at mapatlas.eu/ai-seo-checker. The checker scores the same 29 signals used in this benchmark and flags which ones are missing. Pair the score with periodic manual prompts across ChatGPT, Perplexity, and Gemini to track how often your listing surfaces over time.

