They open a page and then leave immediately. What's the best practice to fight it? Time 1-2 s, bounce rate = 100%
I googled several services, for example this one shows this IPs like spam, but they are fighting spam comments, not total IP blocking. https://cleantalk.org/blacklists/as29209

Mozilla/5.0 (Linux; Android 5.0; Lenovo A5000 Build/LRX21M) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.86 Mobile Safari/537.36
– Horhe Garcia Apr 19 '19 at 16:52