Or they query the DNS very often. Most devices have DNS caching, so if things like tiktok.com end up there, there must be a loot of devices (also, a lot of subd

Or they query the DNS very often. Most devices have DNS caching, so if things like tiktok.com end up there, there must be a loot of devices (also, a lot of subdomains, which aren't visible in these lists).