I occasionally peruse different OTA sites to see how our inn is being listed (most owned by Expedia, of course) and noticed on Trivago a rating the didn't correspond to ratings or reviews I have seen on many sites. They provided scores on some things that guests never mentioned in a review or scored on. I contacted Trivago and their response was they have their own algorithm to determine scores. They offered to review the ratings again and it went up! By one-tenth of a point, LOL, but still below the scores we receive elsewhere. It just seems like the algorithm is a bit random.