Ctf servers

26 measured server(s) with the Ctf sub-topic, ranked by real members. Browse topics →

Server	Members	Online	Active
1 Hacker101	76,142	4,300	5.6%
2 pwn.college	45,826	6,430	14.0%
3 Dropout Phreaks	26,959	3,219	11.9%
4 CyLab Security Academy (formerly picoCTF)	25,178	2,586	10.3%
5 Blue Team Labs Online ☁	6,603	364	5.5%
6 DownUnderCTF	5,153	857	16.6%
7 CyberStudents	5,150	619	12.0%
8 CyberTalents	2,272	87	3.8%
9 UofTCTF	1,440	146	10.1%
10 𝚂𝚎𝚌𝙴𝚗𝚝	1,428	123	8.6%
11 EDU CTF Course	1,288	283	22.0%
12 THJCC CTF	1,285	220	17.1%
13 HackIndex	1,271	141	11.1%
14 infophreak	864	91	10.5%
15 GreHack 2026	665	130	19.5%
16 CTF-RU	636	49	7.7%
17 PicoCTF_Africa	606	15	2.5%
18 Capture the Flag Club	564	63	11.2%
19 The Hack Pack	461	98	21.3%
20 CTFClub	417	26	6.2%
21 Barracks HQ	300	18	6.0%
22 CSCGR (Cyber Security Challenge Greece)	293	46	15.7%
23 UW-Stout CTF	261	28	10.7%
24 Century College CCDC team	53	9	17.0%
25 Nigeria National CTF	51	3	5.9%
26 ☕ | WebDevs Plataform	17	2	11.8%