very cute puppy........ hard to tell for sure as puppies change a LOT while they grow....... but definately it has something that comes in brindle

perhaps as you said dutch (but they are not so common as far as I know), maybe some boxer (just the color), mastiff, pit, akita, you name it........ and he has an adorable face....... way cute!!

I attatched a pics from your link so everyone could see