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On SSDs the computer only sees a storage abstraction provided by the Flash Translation Layer in the drive. Below it there's slightly more storage and it's arranged differently. You can't access that data normally, but specialized tools can. Wear leveling is always at play because the drive has extra storage that it doesn't expose.
@Qwerty It does. But if you want to verify it, check the address of DNS server that devices connected to that router use. Unless you've manually configured a device to use a different DNS server, it will use the IP of your router which is where the DNS server is running. Devices learn that address when acquiring their own IP address from the router using DHCP.