codejudge.net - dns.ninja

`codejudge.net`

DNSSEC	🔒 Signed (DS record present)
A	23.97.195.129^{🇳🇱 Microsoft23.96.0.0/14 MICROSOFT}
NS	`ns01.one.com` ⭐
		A	2001:67c:28cc::10^{ONECOM-INFRA2001:67c:28cc::/48}
			PTR	`ns01.one.com`
		A	195.206.121.10^{ONECOM-INFRA195.206.121.0/24}
			PTR	`ns01.one.com`
NS	`ns02.one.com`
		A	2001:67c:3c0::10^{🇩🇰 ONECOM2001:67c:3c0::/48}
			PTR	`ns02.one.com`
		A	185.10.11.10^{ONECOM185.10.11.0/24}
			PTR	`ns02.one.com`
MX	`in1-smtp.messagingengine.com` ⭐
		A	103.168.172.216^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-01.messagingengine.com`
		A	103.168.172.217^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-02.messagingengine.com`
		A	103.168.172.218^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-03.messagingengine.com`
		A	103.168.172.219^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-04.messagingengine.com`
		A	103.168.172.220^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-05.messagingengine.com`
		A	103.168.172.221^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-06.messagingengine.com`
		A	103.168.172.222^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-07.messagingengine.com`
		A	103.168.172.223^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-08.messagingengine.com`
MX	`in2-smtp.messagingengine.com`⁽²⁰⁾
		A	202.12.124.216^{TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-01.messagingengine.com`
		A	202.12.124.217^{TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-02.messagingengine.com`
		A	202.12.124.218^{TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-03.messagingengine.com`
		A	202.12.124.219^{TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-04.messagingengine.com`
MX	`mx1.forwardemail.net`⁽²⁵⁾
		A	2604:a880:2:d0::306:1^{🇺🇸 DIGITALOCEAN2604:a880:2::/48 DigitalOcean}
			PTR	`mx1.forwardemail.net`
		A	2a02:6ea0:d71e::2^{🇺🇸 CDN772a02:6ea0:d700::/40 Denver IPv6}
			PTR	`mx1.forwardemail.net`
		A	121.127.44.56^{🇺🇸 CDN77121.127.44.0/24 Denver}
			PTR	`mx1.forwardemail.net`
		A	138.197.213.185^{🇺🇸 DIGITALOCEAN138.197.208.0/20 DigitalOcean}
			PTR	`mx1.forwardemail.net`
MX	`mx2.forwardemail.net`⁽³⁰⁾
		A	2604:a880:400:d1::cd:9001^{🇺🇸 DIGITALOCEAN2604:a880:400::/48 DigitalOcean}
			PTR	`mx2.forwardemail.net`
		A	2a02:6ea0:d71e::1^{🇺🇸 CDN772a02:6ea0:d700::/40 Denver IPv6}
			PTR	`mx2.forwardemail.net`
		A	104.248.224.170^{🇺🇸 DIGITALOCEAN104.248.224.0/20 DigitalOcean}
			PTR	`mx2.forwardemail.net`
		A	121.127.44.59^{🇺🇸 CDN77121.127.44.0/24 Denver}
			PTR	`mx2.forwardemail.net`
TXT	`v=spf1 include:spf.messagingengine.com include:eu.mailgun.org include:_spf.go...`
TXT	`forward-email=anders.r0x3r@gmail.com`
TXT	`MS=FBAA7A80B2B0886C99DF2782915D7B9291D677E6`
SOA	`ns01.one.com`hostmaster@one.com 2026-03-24 #1

`net`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1784918402

Same first word

codejudge.ir

codejudge.edu.vn

codejudge.xyz

codejudge.net

codejudge.io

Similar names

judgecode.com

DNS History

15 records (7 active, 8 former)

●NSns01.one.com2026-02-15 → 2026-07-24 · 3 obs

○ 2017-06-14 20:36:52
● 2026-02-15 03:48:20
● 2026-07-24 18:58:02

●NSns02.one.com2026-02-15 → 2026-07-24 · 3 obs

○ 2017-06-14 20:36:52
● 2026-02-15 03:48:20
● 2026-07-24 18:58:02

○NSns1.gratisdns.dk2015-08-17 → 2017-06-14 · 4 obs

● 2015-08-17 00:51:00
● 2017-06-14 20:36:52
○ 2026-02-15 03:48:20
○ 2026-07-24 18:58:02

○NSns2.gratisdns.dk2015-08-17 → 2017-06-14 · 4 obs

● 2015-08-17 00:51:00
● 2017-06-14 20:36:52
○ 2026-02-15 03:48:20
○ 2026-07-24 18:58:02

○NSns3.gratisdns.dk2015-08-17 → 2017-06-14 · 4 obs

● 2015-08-17 00:51:00
● 2017-06-14 20:36:52
○ 2026-02-15 03:48:20
○ 2026-07-24 18:58:02

○NSns4.gratisdns.dk2015-08-17 → 2017-06-14 · 4 obs

● 2015-08-17 00:51:00
● 2017-06-14 20:36:52
○ 2026-02-15 03:48:20
○ 2026-07-24 18:58:02

○NSns5.gratisdns.dk2015-08-17 → 2017-06-14 · 4 obs

● 2015-08-17 00:51:00
● 2017-06-14 20:36:52
○ 2026-02-15 03:48:20
○ 2026-07-24 18:58:02

●MXin1-smtp.messagingengine.com2026-02-15 → 2026-07-24 · 3 obs

○ 2017-06-14 20:36:52
● 2026-02-15 03:48:20
● 2026-07-24 18:58:02

●MXin2-smtp.messagingengine.com2026-02-15 → 2026-07-24 · 3 obs

○ 2017-06-14 20:36:52
● 2026-02-15 03:48:20
● 2026-07-24 18:58:02

○MXmail01.bavole.net2015-08-17 → 2017-06-14 · 4 obs

● 2015-08-17 00:51:00
● 2017-06-14 20:36:52
○ 2026-02-15 03:48:20
○ 2026-07-24 18:58:02

●MXmx1.forwardemail.net2026-02-15 → 2026-07-24 · 3 obs

○ 2017-06-14 20:36:52
● 2026-02-15 03:48:20
● 2026-07-24 18:58:02

●MXmx2.forwardemail.net2026-02-15 → 2026-07-24 · 3 obs

○ 2017-06-14 20:36:52
● 2026-02-15 03:48:20
● 2026-07-24 18:58:02

○A104.40.129.892015-12-06 → 2016-07-09 · 5 obs

○ 2015-08-17 00:51:00
● 2015-12-06 09:54:50
● 2016-07-09 05:39:54
○ 2017-06-14 20:36:52
○ 2026-07-24 18:58:02

○A217.116.209.442015-08-17 → 2015-08-17 · 3 obs

● 2015-08-17 00:51:00
○ 2015-12-06 09:54:50
○ 2026-07-24 18:58:02

●A23.97.195.1292017-06-14 → 2026-07-24 · 3 obs

○ 2016-07-09 05:39:54
● 2017-06-14 20:36:52
● 2026-07-24 18:58:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
codejudge.net	ns01.one.com, ns02.one.com	-

✅ Authoritative Response

Server:185.10.11.10

NS records: ns01.one.com, ns02.one.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 877ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`23.97.195.129`
NS	2	`ns01.one.com, ns02.one.com`
MX	4	`in2-smtp.messagingengine.com (pri: 20), in1-smtp.messagingengine.com (pri: 10)...`
TXT	3	`v=spf1 include:spf.messagingengine.com i, forward-email=anders.r0x3r@gmail.com...`
SOA	1	`ns01.one.com hostmaster.one.com`

Analysis

IP Addresses

codejudge.net has exactly one IP address — 23.97.195.129.

randermann.eu, archivum.ch, urtegaarden.com plus two other host names have IP numbers in common with codejudge.net.

Name Servers

codejudge.net is served by two delegated name servers, ns01.one.com and ns02.one.com.

The name server configuration of codejudge.net is shared with other domains, for instance alansommer.com, bonusfreaks.com, melfraforum.dk and two others.

Each of the two host names carries two IP addresses: ns01.one.com points to 195.206.121.10 and 2001:67c:28cc::10, and ns02.one.com points to 185.10.11.10 and 2001:67c:3c0::10.

Mail Servers

Four mail servers handle email for codejudge.net: in1-smtp.messagingengine.com, in2-smtp.messagingengine.com, mx1.forwardemail.net and mx2.forwardemail.net.

At least some of the mail servers used by codejudge.net are shared with other domains: burrito.space, kellybrownsberger.com, upcoder.com and two others among them.

Hosts with 8 IP addresses each:

in1-smtp.messagingengine.com carries IP addresses 103.168.172.216, 103.168.172.217 and 103.168.172.218, with 5 other addresses beyond those.

Host names with four IP addresses:

in2-smtp.messagingengine.com points to 202.12.124.216, 202.12.124.217, 202.12.124.218 and 202.12.124.219.

mx1.forwardemail.net points to 121.127.44.56, 138.197.213.185, 2604:a880:2:d0::306:1 and 2a02:6ea0:d71e::2.

mx2.forwardemail.net points to 104.248.224.170, 121.127.44.59, 2604:a880:400:d1::cd:9001 and 2a02:6ea0:d71e::1.