Compatibility Checker

How to Use the Compatibility Checker

Step 1 — Select pet type: Dog or Cat. Compatibility dynamics differ significantly between species. Dogs have complex social hierarchies and strong breed-specific behavioural tendencies that affect household fit. Cats are more territorial and their compatibility with new animals depends heavily on introduction method and individual personality. The checker applies species-appropriate compatibility frameworks for each selection.

Step 2 — Select the breed you are considering. Breed selection loads the compatibility profile for that specific breed — their documented tendencies with children of different ages, other dogs, cats, small animals, and people with limited experience. These profiles are based on breed group working history, AKC and kennel club temperament standards, and veterinary behavioural literature. They represent statistical tendencies across the breed population, not certainties for any individual dog.

Step 3 — Add your family members. Add every person in the household — adults, children (by age group), and note any allergies or animal fears. Age of children matters significantly. A breed that is patient and gentle with school-age children may be inappropriate with toddlers due to the unpredictable physical handling young children impose. A household member who is afraid of dogs affects which breeds are suitable — a high-energy dog that jumps and demands attention will worsen a fear, while a calm, gentle breed may help.

Step 4 — Add existing pets. This is the most critical input for multi-pet households. Add every existing animal — other dogs (with breed and age), cats, and small animals like rabbits, guinea pigs, or birds. A breed with high prey drive living with a cat requires a specific management plan that many owners are not prepared to implement. Two unneutered male dogs of certain breeds in the same household creates predictable conflict. The checker flags specific combination risks and provides management guidance.

Step 5 — Select living space, time available, and experience level. These inputs complete the compatibility picture. A high-energy breed in a small apartment with a busy owner is a poor compatibility outcome even if it scores well on family and pet dimensions. A first-time owner with a breed that requires experienced handling is a mismatch regardless of other factors.

Step 6 — Click Analyse Compatibility. Your result shows compatibility scores across five dimensions with specific notes on any dimension scoring below 70%. Scores below 55% on any single dimension represent a genuine risk factor worth addressing before proceeding.

Understanding Your Results

What the compatibility score actually measures. The overall score is a weighted composite of five dimensions: family compatibility, existing pet compatibility, environment fit, time and exercise commitment match, and experience level suitability. Dimensions are not equally weighted — a 40% score on existing pet compatibility (indicating a genuine safety risk between animals) carries more practical weight than a 40% score on environment fit (indicating inconvenience rather than danger). Read dimension scores individually, not just the overall figure.

Why a high overall score can still hide a critical problem. A breed that scores 85% overall but 45% on compatibility with your existing cat has a fundamental problem that the overall score obscures. The checker flags any dimension below 55% as a risk flag regardless of overall score. Take these flags seriously — a dog that is dangerous to your cat does not become acceptable because it scores 95% on family compatibility.

Breed tendencies vs individual personality — the key distinction. Compatibility scores reflect breed-level tendencies based on working history and documented temperament. Individual dogs within any breed vary significantly. A Greyhound breed profile shows moderate-to-low cat compatibility due to prey drive — but a specific Greyhound that was raised from puppyhood with cats and has zero prey drive history may be perfectly safe with cats. Conversely, a breed with excellent cat compatibility scores, like a Golden Retriever, may produce an individual dog with unusually high prey drive. Breed scores set the prior probability — actual assessment of the specific dog matters equally.

The introduction method matters as much as compatibility score. A high compatibility score between two animals does not guarantee a successful introduction. Rushed introductions between existing pets and new animals are a leading cause of permanent incompatibility that could have been avoided. Dogs should be introduced on neutral ground, on lead, with calm energy. Cats need controlled introduction over days to weeks — separate rooms initially, scent exchange before visual contact, barrier introduction before free contact. The checker provides introduction guidance for each combination based on the specific animals involved.

When a low score does not mean impossible. A compatibility score below 55% is a warning, not a veto. Many households manage combinations that score poorly on compatibility through committed management: separate feeding stations, crate training, baby gates, structured introduction protocols, and professional behavioural support. The score tells you the difficulty level — a 40% cat compatibility score means the combination requires active management and carries ongoing risk, not that it cannot work with the right commitment and approach.

Compatibility Reference Tables

Dog Breeds — Compatibility with Children by Age Group

Dog Breeds — Compatibility with Cats

Dog-to-Dog Compatibility — Common Conflict Combinations

Household Compatibility by Living Space

Compatibility Score Guide — What Each Range Means