RingZer0 Team Online CTF

RingZer0 Team's online CTF offers you tons of challenges designed to test and improve your hacking skills through hacking challenges. Register and get a flag for every challenge.

I started this website in 2014 hosting everything in my garage (Picture here). If you like the website you can support us by making a donation. With those donations it will be possible to buy modern hardware and add new great stuff on the website that required more resources. You can find the list of users that contributed here.





Chat / Questions / Help You'll find all what you need in the Discord Server. Join the Discord now! Challenges Currently more than 300 challenges are available over 15 categories. Have fun resolving them. View challenges » Register Your first time here? First step register an account, that way you will be able to login and start solving challenges. Register »

Want to become certified RCEH?

The RingZer0 Team Online CTF is now proudly hosted using Claranet FR cloud service.

Super simple get at least 1000 points and you will receive your official badge and certification. The RingZer0 Certified Elite Hacker (RCEH) certification is a highly technical certification. Anyone holding the RCEH title is a highly skilled hacker.

Once you get your RCEH title you can proudly use the certified logo and show to the rest of the world that you successfully managed to solve several hacking challenges on the RingZer0 CTF.

Scoreboard - 36594 players «

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Position Username Points Gold Last Validation Special Mention sagefault 1446 146 2020-09-11 01:50:49 4 Corb3nik 1397 5 2020-08-03 13:57:12 2 jusb3 1298 0 2020-09-09 06:12:40 3 4 Freddrickk 1237 17 2020-08-13 18:59:56 4 5 Towel 1222 684 2020-05-20 18:33:12 70 6 mbergeron 1208 210 2020-09-10 16:44:37 6 7 stamparm 1201 0 2018-09-25 11:21:27 7 8 an0n 1129 11 2017-08-20 17:04:56 20 9 cyberguru 1108 2 2020-09-18 09:29:56 5 10 nic-lovin 1068 8 2020-09-09 17:36:04 2 11 HoLyVieR 1047 97 2020-02-03 13:51:17 11 12 dinus 1044 5 2020-08-02 02:04:58 7 13 alxbl 1034 74 2020-07-24 10:37:29 13 14 acormier 1023 95 2020-08-18 20:07:53 7 15 fLink 1018 2 2019-11-13 14:37:57 1 16 GuilT 1009 117 2019-08-09 23:04:53 8 17 killer2 1005 311 2018-10-29 12:29:39 9 18 Sideni 1002 17 2020-07-24 00:30:13 5 19 allfro 947 0 2020-06-21 19:17:28 0 20 dysleixa 894 59 2020-05-11 09:36:18 8 21 garigouster 872 791 2017-06-05 09:19:11 74 22 nopernik 832 164 2020-09-16 13:00:24 9 23 fffroze 779 11 2020-09-02 14:56:26 3 24 snowscan 778 17 2020-06-09 21:51:44 2 25 lolwut 777 0 2018-01-18 12:58:24 0 26 destiny 758 4 2020-08-23 17:18:52 1 27 fob 753 4 2020-08-09 00:42:25 4 28 yehuju 735 0 2020-09-05 04:09:06 0 29 marcS0H 718 1 2020-05-18 23:57:34 1 30 becojo 717 3 2020-08-17 17:49:02 2 31 theindian 686 546 2020-09-18 16:27:27 58 32 davidlebr1 683 105 2020-08-25 23:06:15 11 33 madbat2 665 0 2015-06-15 15:37:39 0 34 pwndre 643 42 2020-06-05 00:19:47 2 35 marlo 640 0 2020-06-06 02:08:15 0 36 turksec 639 8 2017-01-31 06:56:54 0 37 rootkitg 634 0 2020-06-21 20:05:30 0 38 watchdog 625 41 2020-08-30 06:58:07 0 39 sulliedeclat 624 1 2019-11-26 01:44:50 1 40 lixtelnis 622 3 2020-09-12 17:02:10 2 41 Pourliver 618 0 2020-06-29 22:29:23 0 42 madness 613 517 2020-02-24 16:22:49 44 43 Kileak 611 26 2018-02-23 15:37:57 19 44 dloser 603 0 2016-05-03 15:48:08 0 45 tihanyin 588 93 2020-07-27 14:43:12 1 46 xeksec 581 1 2016-10-24 00:59:48 0 47 Laish 580 194 2020-09-05 16:59:28 2 48 marcan2020 580 18 2020-08-25 22:14:40 1 49 FadedForEver 569 5 2020-06-16 02:29:45 1 50 pupsik 566 0 2020-07-30 19:46:59 0

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