Guests background checks
My wife and I rent our downstairs rental suite, while we live full-time on the upper main floor. Our house is in California, USA.
There is no separate downstairs entrance for guests, which allows them full access to our home when we are asleep or away for a few hours. My wife and I need to be trusting of each new guest, and we have enjoyed being hosts since starting in June 2018.
However, Booking,com only provides me with the guest's name and telephone number when making an online reservation. I do not know where each new guest lives or have their character reference from other hosts.
Therefore, I use a free background-check website that tells me the guest's home address and age. After typing in the guest's phone number, the home address appears.
Then, I use Google Maps to show me a photo of the guest's home exterior. If guests take nice care of their house exterior, then they likely will take good care of our rental guestrooms during their stay.
Other hosts might believe a guest background-check is intrusive to the guest's privacy. But it is reassuring to me, when strangers are staying in my home.