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The information on this page is no longer valid. Ysearch was closed as a result of the EU General Data Protection Regulation (GDPR) that went into effect 25 May 2018.

What is Ysearch?

Ysearch is a public database for Y-DNA haplotypes which helps genealogists determine if two or more males share a male ancestor on their direct paternal line in a genealogical time frame. These results are also useful in inferring the likely geographic origin or ethnicity of a direct paternal line (Native American, African, European, Asian, etc).

Ysearch contains over 130,000 Y-STR haplotypes, at least 85% of which tested with Family Tree DNA, and allows input of Y-DNA results from other DNA testing companies including African Ancestry, AncestryDNA, Oxford Ancestors, GeneBase, GeneTree, Genographic Project (1.0), Relative Genetics, and DNAHeritage.

Ysearch Tips

If have Y-DNA results from Family Tree DNA then you can automatically upload those results to Ysearch. Click on the "Upload to Ysearch" button at the bottom of your Y-DNA Matches page at Family Tree DNA.

If you receive an error message when you tried to upload your Y-DNA results to Ysearch then replace "xyz" at the end of the link below with your Family Tree DNA kit number.

That will provide your Ysearch ID.

Usage on WikiTree

When you enter or edit a yDNA test, the optional field for Ysearch ID will appear.

This should be a combination of five letters or numbers, e.g. D3D3Z.

This is used to construct links to a page on, e.g.

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This page was last modified 12:13, 9 December 2020. This page has been accessed 7,644 times.