✓ TestedWorks with CSV, Excel, Google Sheets → JSON-LD Schema
By dataclean.to team · 2026-02-12
Hotel aggregators, travel agencies, and hospitality platforms pull property data from dozens of booking channels, franchise systems, and direct submissions. The same hotel frequently appears multiple times when its name differs between Booking.com, Expedia, and the property's own website. A Hilton property might be listed as 'Hilton Garden Inn Downtown', 'HGI Downtown Austin', and 'Garden Inn - Austin Congress Ave' across three feeds. dataclean.to matches these entries by name similarity, address proximity, and chain codes to produce a single authoritative listing per property.
The Problem
Hotel data duplication stems from the fragmented distribution landscape. Each OTA, GDS, and direct booking channel maintains its own property record with different naming conventions, address formats, and identifiers. Properties that rebrand after a chain change retain ghost listings under their former names. Independent properties that join and leave soft brands create additional phantom entries. These duplicates cause rate parity violations when the same room appears at different prices under different listings, inflate destination inventories with false counts, and dilute guest reviews across split profiles. American Hotel & Lodging Association resources
How to Fix It
1
Export property listings from all channels
Pull hotel data from each booking channel, GDS, and internal PMS into CSV format. Include property name, street address, city, chain code, star rating, room count, and any unique property identifiers.
2
Upload combined data to dataclean.to
Upload the merged CSV. The tool compares property names, street addresses, and geographic coordinates to identify hotels listed multiple times across channels.
3
Review property duplicate clusters
Examine flagged groups. Common duplicates include the same hotel under pre- and post-rebrand names, properties listed with both a street address and PO box, and chain hotels entered with both abbreviated and full brand names.
4
Merge into canonical property records
Consolidate confirmed duplicates into one record per physical property. Preserve the official chain name, verified star rating, correct room count, and the most complete amenity list from all source records.
5
Export the clean property database
Download the deduplicated CSV for import into your booking platform, channel manager, or property database. Each hotel now has a single entry with consistent data across all distribution channels.
Frequently Asked Questions
How does the tool handle hotels that rebranded to a different chain?
Rebranded properties often retain listings under their former name. The tool matches on physical address and room count in addition to name, so a property that changed from Best Western to Holiday Inn is flagged as a duplicate if both entries share the same street address.
Can it distinguish between hotels with similar names in the same city?
Yes. Name similarity alone does not trigger a merge. The tool requires address proximity or matching identifiers to confirm a duplicate, so 'Hilton Downtown' and 'Hilton Airport' in the same city are kept as separate properties.
What about hotels with multiple buildings at the same address?
Multi-building properties like resort complexes should be listed as one property. If separate buildings appear as individual entries sharing the same main address, the tool flags them for your review so you can decide whether to merge or keep them distinct.
Example: Input → Output
name
address
city
stars
price_per_night
Grand Plaza Hotel
123 Main St
New York
4
$189
grand plaza hotel
123 main st
new york
NY
4 stars
$189/night
Red rows show common data quality issues. dataclean.to normalizes and generates JSON-LD automatically.
{
"@context": "https://schema.org",
"@type": "Hotel",
"name": "Grand Plaza Hotel",
"address": {"@type": "PostalAddress", "streetAddress": "123 Main St", "addressLocality": "New York"},
"starRating": {"@type": "Rating", "ratingValue": "4"}
}
💡 How it works:Hotel schema helps your property appear in Google Hotel Search with star ratings and pricing.
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