Pedigree Guide

Your dog's family tree, decoded.

A pedigree is more than a piece of paper. It is a map of the ancestors that shaped your dog's temperament, health, and conformation. Learn how to read one and what it actually tells you.

Pedigree Guides

How to Read a Dog Pedigree

Decode a 5-generation pedigree chart. What each position means, how to identify inbreeding, and what to look for.

Read guide

What Is COI? Coefficient of Inbreeding

What COI means, why it matters, and what levels are considered safe in American Bulldogs.

Read guide

Build Your Own

Pedigree Builder

Enter your dog's ancestry below. Print it or grab the HTML code to paste on your website.

Click any cell to enter a name. Tab or Enter to move on.

Dog	Parents	Grandparents	Great-Grandparents
Your Dog	Sire	Sire's Sire	SS Sire
			SS Sire
			SS Dam
			SS Dam
		Sire's Dam	SD Sire
			SD Sire
			SD Dam
			SD Dam
	Dam	Dam's Sire	DS Sire
			DS Sire
			DS Dam
			DS Dam
		Dam's Dam	DD Sire
			DD Sire
			DD Dam
			DD Dam

Search 42,000+ American Bulldog pedigrees

The largest American Bulldog pedigree database in the world. Search any registered dog, view their full family tree, and calculate COI.

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