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Travel Data Quality

Deduplication, normalisation and monitoring for hotel, city and country data.

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Travel Data Quality articles

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Hotel Deduplication: How to Stop Showing the Same Hotel Five Times

Travel Data Quality

30 Oct 2026 · 5 min read

Hotel Deduplication: How to Stop Showing the Same Hotel Five Times

Duplicate hotels are not a cosmetic bug - they break price comparison and conversion. Here is a deduplication approach that holds up at a million records.

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One hotel ID across every supplier.

Mappin maps 1M+ hotels from Hotelbeds, Dida, RezLive, Restel and Travellanda to a single master record - delivered through one REST API.

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