codejudge.io - dns.ninja

`codejudge.io`

DNSSEC	⚠️ Not signed
A	75.2.70.75^{🇺🇸 Amazon75.2.64.0/20}
		PTR	`aacb0a264e514dd48.awsglobalaccelerator.com`
A	99.83.190.102^{🇺🇸 Amazon99.83.176.0/20}
NS	`ns-1875.awsdns-42.co.uk` ⭐
		A	2600:9000:5307:5300::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1875.awsdns-42.co.uk`
		A	205.251.199.83^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1875.awsdns-42.co.uk`
NS	`ns-1374.awsdns-43.org`
		A	2600:9000:5305:5e00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1374.awsdns-43.org`
		A	205.251.197.94^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1374.awsdns-43.org`
NS	`ns-271.awsdns-33.com`
		A	2600:9000:5301:f00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-271.awsdns-33.com`
		A	205.251.193.15^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-271.awsdns-33.com`
NS	`ns-783.awsdns-33.net`
		A	2600:9000:5303:f00::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-783.awsdns-33.net`
		A	205.251.195.15^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-783.awsdns-33.net`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c0b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bj-in-f27.1e100.net`
		A	172.253.63.27^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`google-site-verification=FAQScZeIFt8axuxBz8C0RpsOoDDaZdrT0SDxxLG0Mz4`
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`ns-1875.awsdns-42.co.uk`awsdns-hostmaster@amazon.com serial=1

`io`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.io` ⭐
	NS	`a2.nic.io`
	NS	`b0.nic.io`
	NS	`c0.nic.io`
	SOA	`a0.nic.io`hostmaster@donuts.email serial=1785276449

Subdomains

www.codejudge.io

Same first word

codejudge.edu.vn

codejudge.xyz

codejudge.net

codejudge.io

codejudge.ir

Similar names

judgecode.com

DNS History

20 records (11 active, 9 former)

○NSdrew.ns.cloudflare.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 18:02:32
○ 2020-03-12 13:55:56
○ 2026-07-28 22:38:56

○NSkiki.ns.cloudflare.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 18:02:32
○ 2020-03-12 13:55:56
○ 2026-07-28 22:38:56

●NSns-1374.awsdns-43.org2020-03-12 → 2026-07-28 · 3 obs

○ 2017-03-16 18:02:32
● 2020-03-12 13:55:56
● 2026-07-28 22:38:56

●NSns-1875.awsdns-42.co.uk2020-03-12 → 2026-07-28 · 3 obs

○ 2017-03-16 18:02:32
● 2020-03-12 13:55:56
● 2026-07-28 22:38:56

●NSns-271.awsdns-33.com2020-03-12 → 2026-07-28 · 3 obs

○ 2017-03-16 18:02:32
● 2020-03-12 13:55:56
● 2026-07-28 22:38:56

●NSns-783.awsdns-33.net2020-03-12 → 2026-07-28 · 3 obs

○ 2017-03-16 18:02:32
● 2020-03-12 13:55:56
● 2026-07-28 22:38:56

●MXalt1.aspmx.l.google.com2020-03-12 → 2026-07-28 · 3 obs

○ 2017-03-16 18:02:32
● 2020-03-12 13:55:56
● 2026-07-28 22:38:56

●MXalt2.aspmx.l.google.com2020-03-12 → 2026-07-28 · 3 obs

○ 2017-03-16 18:02:32
● 2020-03-12 13:55:56
● 2026-07-28 22:38:56

●MXalt3.aspmx.l.google.com2020-03-12 → 2026-07-28 · 3 obs

○ 2017-03-16 18:02:32
● 2020-03-12 13:55:56
● 2026-07-28 22:38:56

●MXalt4.aspmx.l.google.com2020-03-12 → 2026-07-28 · 3 obs

○ 2017-03-16 18:02:32
● 2020-03-12 13:55:56
● 2026-07-28 22:38:56

●MXaspmx.l.google.com2020-03-12 → 2026-07-28 · 3 obs

○ 2017-03-16 18:02:32
● 2020-03-12 13:55:56
● 2026-07-28 22:38:56

○MXeforward1.registrar-servers.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 18:02:32
○ 2020-03-12 13:55:56
○ 2026-07-28 22:38:56

○MXeforward2.registrar-servers.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 18:02:32
○ 2020-03-12 13:55:56
○ 2026-07-28 22:38:56

○MXeforward3.registrar-servers.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 18:02:32
○ 2020-03-12 13:55:56
○ 2026-07-28 22:38:56

○MXeforward4.registrar-servers.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 18:02:32
○ 2020-03-12 13:55:56
○ 2026-07-28 22:38:56

○MXeforward5.registrar-servers.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 18:02:32
○ 2020-03-12 13:55:56
○ 2026-07-28 22:38:56

○A54.145.181.1512020-03-12 → 2020-03-12 · 4 obs

○ 2017-03-16 18:02:32
● 2020-03-12 13:55:56
○ 2026-02-21 22:24:00
○ 2026-07-28 22:38:56

○A54.225.175.2052017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 18:02:32
○ 2020-03-12 13:55:56
○ 2026-07-28 22:38:56

●A75.2.70.752026-02-21 → 2026-07-28 · 3 obs

○ 2020-03-12 13:55:56
● 2026-02-21 22:24:00
● 2026-07-28 22:38:56

●A99.83.190.1022026-02-21 → 2026-07-28 · 3 obs

○ 2020-03-12 13:55:56
● 2026-02-21 22:24:00
● 2026-07-28 22:38:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	b0.nic.io, a0.nic.io, a2.nic.io, c0.nic.io	-
codejudge.io	ns-1374.awsdns-43.org, ns-783.awsdns-33.net, ns-271.awsdns-33.com, ns-1875.awsdns-42.co.uk	-

✅ Authoritative Response

Server:205.251.199.83

NS records: ns-1374.awsdns-43.org, ns-783.awsdns-33.net, ns-271.awsdns-33.com, ns-1875.awsdns-42.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for codejudge.io (unsigned zone)

⏱️ Timing

Total: 744ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`99.83.190.102, 75.2.70.75`
NS	4	`ns-1374.awsdns-43.org, ns-1875.awsdns-42.co.uk...`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	2	`google-site-verification=FAQScZeIFt8axux, v=spf1 include:_spf.google.com ~all`
SOA	1	`ns-1875.awsdns-42.co.uk awsdns-hostmaste`

Analysis

Hierarchy

codejudge.io is the parent zone for www.codejudge.io.

IP Addresses

codejudge.io resolves to the IP addresses 75.2.70.75 and 99.83.190.102

www.trpharm.com, favtrip.com, shiplex.com plus two other host names have IP numbers in common with codejudge.io.

Name Servers

Four name servers handle the delegation for codejudge.io: ns-271.awsdns-33.com, ns-783.awsdns-33.net, ns-1374.awsdns-43.org and ns-1875.awsdns-42.co.uk.

codejudge.io partially shares its NS delegation with several other domains, including sg.aws.grabpay.com, ixit.jp, qualitymazdanm.com and two others.

ns-271.awsdns-33.com, ns-783.awsdns-33.net, ns-1374.awsdns-43.org and ns-1875.awsdns-42.co.uk each carry two IP addresses. ns-271.awsdns-33.com has 205.251.193.15 and 2600:9000:5301:f00::1; ns-783.awsdns-33.net has 205.251.195.15 and 2600:9000:5303:f00::1; ns-1374.awsdns-43.org has 205.251.197.94 and 2600:9000:5305:5e00::1; ns-1875.awsdns-42.co.uk has 205.251.199.83 and 2600:9000:5307:5300::1.

Mail Servers

codejudge.io is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

At least some of the mail servers used by codejudge.io are shared with other domains: infycat.com, top5.com, norrkopingpanthers.se and two others among them.

These mail servers are often deployed together with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 other mail servers.

Host names pointing to two IP addresses:

aspmx.l.google.com resolves to 172.253.63.27 and 2607:f8b0:4004:c0b::1b.

alt1.aspmx.l.google.com resolves to 108.177.123.27 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com resolves to 172.253.116.27 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com resolves to 192.178.223.26 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com resolves to 172.253.157.26 and 2a00:1450:400c:c23::1a.