Ultimutt
Ultimutt reports when a dog has small amounts of many different breeds in their background. Sometimes these trace amounts are so small that they may be unidentifiable. With every generation of breed mixing that passes, the DNA from the purebred ancestors in a dog's lineage becomes more diluted and strands of DNA become smaller. Sometimes these strands are so small that it becomes difficult to locate clear, identifiable matches to the breeds in our genetic reference library.