look at pictures on the net.

Have you tried DNA????????????

am bull or boxer? wow the 2 breeds arent even slightly similar. One is sleek and the other is massively muscled the weight difference can be beyond 100 lbs or more. the thing with heinz 57 dogs is with out very very costly dna testing there is no way to tell the genetic permutation factors( or what it looks like). the IMPORTANT thing is do you love the dog? if so what else matters…They are both great breeds…

The kennel club have a site with Dog standards

Try this link

Boxer and bulldogs do have some of the same traits, it could be hard to tell the difference if your dog was mixed with something else as well. You can ask your vet, they know more about it than anyone else will. They can check bone structure and teeth. Good-luck

ask him

You can’t know for sure what breeds go into making your mix.

A vet can usually tell you which features from what breed is in your dog. You can never be 100 percent certain but they are usually very good at seeing what breed it is.

Keep in mind that it is often volunteers who work at the shelters, they may not spend a whole lot of time with purebred dogs and can confuse boxer, bulldog, etc. Both breeds can have a lot of white, though in boxers it is considered a fault.
Also if it is still a pup the features may change a bit as they mature. Esp with a mix.
Sounds to me like an educated guess that missed the mark. I’d just check on google and look at images of both breeds; your vet can also help you make a (better) educated guess, although they don’t always know either.
Go with what looks closest, call her a bulldog mix, have her spayed, and love her.

Look on yahoo images and see what looks most like your dog. Ask a vet, they have seen a lot of dogs and may be able to help.