Which test is best
There is no single “best” test. The best approach is to have your DNA in as many databases as possible, increasing the chance of finding relatives.
Many people start with Ancestry or 23andMe, then upload their results to FamilyTreeDNA, MyHeritage, and GEDmatch. MyHeritage and FamilyTreeDNA are especially important because they host DNA projects with Cambodian and Vietnamese participants.
When to buy a test
DNA tests are frequently discounted. The lowest prices are usually found in late November and December, but sales also occur around holidays such as Valentine’s Day, Mother’s Day, Father’s Day, and International DNA Day (April 25).
Privacy
All DNA companies have privacy policies that you must agree to. You do not need to use your real name and can stay anonymous by using an alias or a separate email address. However, having a reachable email is important so potential relatives can contact you.
Already tested?
If you have already taken a DNA test, you can usually download your RAW DNA file and upload it to other databases to expand your chances of finding matches. If you tested with MyHeritage, you can also choose to share your results with us, which allows you to participate directly in our project.
If you need assistance at any point, you are welcome to contact us — we’re happy to help.
DNA Testing
Types of DNA Tests
Today, the most useful test for finding biological relatives is Autosomal DNA (atDNA). This test compares your DNA with others in large databases to identify family matches. Older systems like CODIS required testing both parent and child and are not helpful for people searching for unknown relatives.
DNA Testing Companies
The main companies offering autosomal DNA tests are Ancestry, 23andMe, MyHeritage, and FamilyTreeDNA. When you test with one of these companies, your results are automatically compared with everyone else in their database.
Some companies allow you to upload (transfer) your RAW DNA file from another company. This makes it possible to be included in multiple databases without buying multiple tests. You can also upload results to GEDmatch, a free, independent database used worldwide.
