She looks pure to me. Goldens can vary a LOT in looks and shape/size from what I have seen. Some are quite large, others more medium, some have more small/slender heads, some have larger blockier heads, some have thick/long coats, some have shorter thinner coats... etc. I think goldens are probably one of the most commonly bred dogs and that leads to a lot of variation. Of course definitely not all are up to AKC standards..