Anti-cheat
How to Prevent Flag Sharing in CTF Competitions
Flag sharing is the most common form of cheating in CTFs. Per-team flags and real-time detection are the only reliable solutions. Here's how they work.
· 4 min read
BLOG
Notes from the organizer's side.
How CTFs break, how to stop it, and what we learned building a platform that doesn't.
Comparison
CTFd Alternatives in 2026: An Honest Comparison
CTFd is the most popular self-hosted CTF platform. Here's how rCTF, GZCTF, and Zero Day Arena compare, and what each one is actually good at in a live event.
· 4 min read
Organizer guide
How to Run a CTF Competition: A Complete Organizer Guide
Everything you need to know about running a CTF: platform choice, challenges, infrastructure, anti-cheat, scoring, and what tends to break under real load.
· 4 min read