Looks like a typical european boxer to me, they breed them bulkier over there, as they do with danes. Also agree with workman that it seems a bit cow hocked, think it would be found out if it was used as a pig dog, also due to the short nose to thickness ratio, bad combo for stamina and heat tolerance. Anyway yeah, no need to think it's outcrossed, I think if it was it would have more muzzle. Even if it was outcrossed with a shortfaced dog. A bit more substantial body is not hard to breed for, and that's what europeans have done with boxers and danes. It's automatically applauded but I question whether it's a genuine improvement.