Subdomain Enumeration

Cross-platform resources for Subdomain Enumeration: curated HTB machines, PortSwigger labs and TryHackMe rooms with validated writeups and related skills.

Subdomain Enumeration

This page aggregates cross-platform resources to practice Subdomain Enumeration: retired Hack The Box machines, PortSwigger Web Security Academy labs and TryHackMe rooms, plus curated resources (HackTricks, PortSwigger, etc.) and related skills.

Curated resources

Source	Link
HackTricks	https://book.hacktricks.wiki/en/generic-methodologies-and-resources/external-recon-methodology/index.html

HTB machines practicing Subdomain Enumeration (14)

Machine	OS	Difficulty
AdmirerToo	Linux	HARD
Bart	Windows	MEDIUM
Bolt	Linux	MEDIUM
CrossFit	Linux	INSANE
Delivery	Linux	EASY
Hackback	Windows	INSANE
Late	Linux	EASY
Meta	Linux	MEDIUM
Oouch	Linux	HARD
OverGraph	Linux	HARD
Player	Linux	HARD
RedCross	Linux	MEDIUM
Stacked	Linux	INSANE
Undetected	Linux	MEDIUM

TryHackMe rooms practicing Subdomain Enumeration (2)

Room	Difficulty	Type	Access	Official
TakeOver	EASY	Challenge	🟢 Free	Open
Wekor	MEDIUM	Challenge	🟢 Free	Open

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Last updated: 2026-05-09