- TryHackMe – tryhackme.com
- VulnHub – vulnhub.com
- RootMe – root-me.org
- OverTheWire – overthewire.org
- PicoCTF – picoctf.com
- Pentestlab – pentestlab.com
- Google CTF – capturetheflag.withgoogle.com
- CMD Challenge – cmdchallenge.com
- HackTheBox – hackthebox.com
- Hacker Security – capturetheflag.com.br
- CTF Komodo Security – ctf.komodosec.com
- Academy Hackaflag BR – hackaflag.com.br
- Attack-Defense – attackdefense.com
- Hacker101 – ctf.hacker101.com
- Vulnyx – vulnyx.com
- Let’s Defend – letsdefend.com
- BlueTeamLabs – blueteamlabs.online
- WebSecurity Academy – PortSwigger
- C1b3rWall Academy – Campus e4you
