From blog.hackersonlineclub.com
FinDomain- Fastest And Cross-platform Subdomain Enumerator.
Comparison
It comparison gives you a idea why you should use findomain instead of another enumerators. The domain used for the test was Microsoft.com in the following BlackArch virtual machine:
Host: KVM/QEMU (Standard PC (i440FX + PIIX, 1996) pc-i440fx-3.1)
Kernel: 5.2.6-arch1-1-ARCH
CPU: Intel (Skylake, IBRS) (4) @ 2.904GHz
Memory: 139MiB / 3943MiB