Ctf servers
24 measured server(s) with the Ctf sub-topic, ranked by real members. Browse topics β
| Server | Members | Online | Active |
|---|---|---|---|
1 Hacker101 | 77,285 | 3,374 | 4.4% |
2 pwn.college | 44,046 | 5,307 | 12.0% |
3 Dropout Phreaks | 27,042 | 2,648 | 9.8% |
4 CyLab Security Academy (formerly picoCTF) | 25,101 | 2,511 | 10.0% |
5 Blue Team Labs Online β | 6,739 | 582 | 8.6% |
6 DownUnderCTF | 5,198 | 963 | 18.5% |
7 CyberStudents | 5,041 | 342 | 6.8% |
8 CyberTalents | 2,277 | 49 | 2.2% |
9 UofTCTF | 1,450 | 174 | 12.0% |
10 ππππ΄ππ | 1,302 | 116 | 8.9% |
11 EDU CTF Course | 1,289 | 347 | 26.9% |
12 THJCC CTF | 1,279 | 256 | 20.0% |
13 CTF-RU | 631 | 30 | 4.8% |
| 14 PicoCTF_Africa | 605 | 16 | 2.6% |
15 GreHack 2026 | 598 | 74 | 12.4% |
16 Capture the Flag Club | 562 | 58 | 10.3% |
17 The Hack Pack | 457 | 80 | 17.5% |
18 CTFClub | 417 | 19 | 4.6% |
19 Barracks HQ | 296 | 18 | 6.1% |
20 CSCGR (Cyber Security Challenge Greece) | 294 | 15 | 5.1% |
21 UW-Stout CTF | 262 | 19 | 7.3% |
22 Century College CCDC team | 53 | 4 | 7.5% |
23 Nigeria National CTF | 51 | 5 | 9.8% |
24 β | WebDevs Plataform | 15 | 4 | 26.7% |