Help with unwanted visitor

This has nothing to do with wordpress. I have a visitor from a porn directory that is accessing my webstats, every 30 minutes around the clock for the last 3 days. Of the 208 visitors I had yesterday, 50 of them were from this website. I don’t mind people looking at my stats that really isn’t the problem. This website is scewing my stats so that it looks like I have more visitors than I actually have. I have tried to block their website but their ip address can’t be resolved. Any suggestions? I would be greatful. I have password protected my stats page, temporarily.

Madie
https://www.beartribenet.com/log