UA: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Falkon/3.0.0 Chrome/56.0.2924.122 Safari/537.36
seen from: 217.155.cc.dd (UK)
Lacking evidence to the contrary, I will say “webkit-based human browser for Linux”. Linux users may be able to shed further light.