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Terms of use

Revised 27 October 2026.

Service

Predok helps with genealogical research: it shows records on the site and serves them to a connector. The service is provided “as is”. We do not guarantee that genealogical data are complete or accurate: they come from archival sources and user contributions and may contain source errors.

Account

Sign-in is through Google, one account per person. You are responsible for access to your Google account and to clients you allow to read Predok on your behalf.

Allowed use

  • Propose only records backed by an archival or other open source with a link.
  • Do not overload the server, bypass limits, or scrape data outside the access we provide.

Data you enter

Data you enter on the site or through a connector (proposed records, problem reports and the like) may be added to the Predok database. The site owners may use these data at their discretion, including commercially, without separate consent or payment. By using the service, you agree to this.

Predok data

Predok records (the Ukrainian genealogical database) may be used for personal genealogical research. When you quote them, cite Predok and the source the record refers to. Bulk copying, publishing as your own database, and commercial use require written consent from Sergi Adamchuk.

Data sources

Points of villages come partly from gazetteers: GeoNames (licence CC BY 4.0) and Wikidata (CC0). The card of such a place links to its record in the gazetteer.

Limits and plans

Limits and plans may appear and change. The service reports a limit breach directly.

Blocking

An account may be blocked if these terms are broken.

Liability

Predok is not liable for decisions made on this information, or for third-party clients you use to reach it.

Changes and contact

A new edition is published on this page with a new date. Questions: admin@predok.ai.