`d21.org`

DNSSEC	⚠️ Not signed
A	61.106.211.84^{🇰🇷 SKB-TBROAD_HANVIT-AS-KR61.106.192.0/19 PACNET (proxy-registered route object)}
NS	`a1-190.akam.net` ⭐
		A	2600:1401:2::be^{🇺🇸 Akamai2600:1401:2::/48 Technologies}
			PTR	`a1-190.akam.net`
			PTR	`ns1-190.akam.net`
		A	193.108.91.190^{🇳🇱 Akamai193.108.91.0/24 Technologies}
			PTR	`a1-190.akam.net`
			PTR	`ns1-190.akam.net`
NS	`a13-67.akam.net`
		A	2600:1480:800::43^{🇺🇸 Akamai2600:1480:800::/48 Technologies}
			PTR	`a13-67.akam.net`
			PTR	`ns2-67.akam.net`
		A	2.22.230.67^{🇳🇱 Akamai2.22.230.0/24 Technologies}
			PTR	`a13-67.akam.net`
			PTR	`ns2-67.akam.net`
NS	`a20-67.akam.net`
		A	2a02:26f0:67::43^{🇳🇱 Akamai2a02:26f0:67::/48 Technologies}
			PTR	`a20-67.akam.net`
		A	95.100.175.67^{🇳🇱 Akamai95.100.175.0/24 Technologies}
			PTR	`a20-67.akam.net`
NS	`a26-65.akam.net`
		A	2600:1480:b800::41^{🇺🇸 Akamai2600:1480:b800::/48 Technologies}
			PTR	`a26-65.akam.net`
		A	23.74.25.65^{🇺🇸 Akamai23.74.25.0/24 Technologies}
			PTR	`a26-65.akam.net`
NS	`a4-67.akam.net`
		A	2600:1480:9000::43^{🇺🇸 Akamai2600:1480:9000::/48 Technologies}
			PTR	`a4-67.akam.net`
		A	72.246.46.67^{🇺🇸 Akamai72.246.46.0/24 Technologies}
			PTR	`a4-67.akam.net`
NS	`a7-64.akam.net`
		A	2600:1406:32::40^{🇺🇸 Akamai2600:1406:32::/48 Technologies}
			PTR	`a7-64.akam.net`
			PTR	`ns3-64.akam.net`
		A	23.61.199.64^{🇺🇸 Akamai23.61.199.0/24 Technologies}
			PTR	`a7-64.akam.net`
			PTR	`ns3-64.akam.net`
MX	`cloud.jiransecurity.com` ⭐
		A	52.231.70.11^{🇰🇷 Microsoft52.224.0.0/11 MICROSOFT}
			PTR	`cloud.jiransecurity.com`
MX	`cloud2.jiransecurity.com` ⭐
		A	52.231.69.234^{🇰🇷 Microsoft52.224.0.0/11 MICROSOFT}
			PTR	`cloud2.jiransecurity.com`
MX	`d21-org.mail.protection.outlook.com`⁽⁵⁾
		A	2a01:111:f403:cc35::^{🇰🇷 Microsoft2a01:111:f000::/36}
			PTR	`mail-slxp216cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:cc35::1^{🇰🇷 Microsoft2a01:111:f000::/36}
			PTR	`mail-sevp216cu00101.inbound.protection.outlook.com`
		A	2a01:111:f403:cc35::2^{🇰🇷 Microsoft2a01:111:f000::/36}
			PTR	`mail-se2p216cu00602.inbound.protection.outlook.com`
		A	2a01:111:f403:cc37::^{🇰🇷 Microsoft2a01:111:f000::/36}
			PTR	`mail-puwp216cu00200.inbound.protection.outlook.com`
		A	52.101.153.0^{🇰🇷 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-slxp216cu00200.inbound.protection.outlook.com`
		A	52.101.153.1^{🇰🇷 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sevp216cu00101.inbound.protection.outlook.com`
		A	52.101.153.2^{🇰🇷 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-se2p216cu00602.inbound.protection.outlook.com`
		A	52.101.155.0^{🇰🇷 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-puwp216cu00200.inbound.protection.outlook.com`
TXT	`google-site-verification=kVHNedUQdem3pVUchpSalzoLKIabRpaiR1Jus_Ulh78`
TXT	`MS=90B178149D7DC6756A35AC0E715003BCDE046024`
TXT	`v=spf1 include:spf.protection.outlook.com ~all`
SOA	`a1-190.akam.net`hostmaster@d21.org 2024-07-02 #23

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1782934299

Subdomains

www.d21.org

ns.d21.org

Same first word

d21.hu

d21.pl

d21.org

d21.ir

d21.media

d21.nu

d21.com

d21.jp

d21.ru

d21.k12.il.us

d21.info

d21.ca

d21.asia

d21.it

d21.site

d21.me

d21.com.cn

d21.co.jp

d21.team

d21.cz

d21.es

d21.wang

d21.de

d21.eu

d21.im

d21.com.br

d21.top

d21.cn

d21.biz

d21.fun

d21.bg

d21.cl

Similar names

21d.com

d12.cc

d12.com.br

d12.pl

d12.ch

21d.jp

1d2.com

d12.me

2d1.biz

12d.org

12d.net

d12.org

d12.com

2d1.org

2d1.eu

2d1.de

21d.com.br

1d2.fr

21d.link

12d.biz

d12.at

d12.be

d12.co.za

12d.com

d12.net

d12.uk

d12.jp

21d.ai

d12.se

d12.co

21d.co.uk

12d.ai

1d2.net

d12.ca

2d1.net

d12.cz

d12.fr

12d.ru

d12.de

d12.nl

12d.tv

d12.eu

12d.it

2d1.cn

d12.es

12d.ir

21d.cn

d12.com.tr

21d.org

21d.net

1d2.de

d12.vn

12d.co

1d2.cc

12d.com.cn

12d.de

21d.eu

21d.de

DNS History

15 records (10 active, 5 former)

●NSa1-190.akam.net2026-03-07 → 2026-07-01 · 3 obs

○ 2019-08-25 01:21:38
● 2026-03-07 00:28:26
● 2026-07-01 19:46:34

●NSa13-67.akam.net2026-03-07 → 2026-07-01 · 3 obs

○ 2019-08-25 01:21:38
● 2026-03-07 00:28:26
● 2026-07-01 19:46:34

●NSa20-67.akam.net2026-03-07 → 2026-07-01 · 3 obs

○ 2019-08-25 01:21:38
● 2026-03-07 00:28:26
● 2026-07-01 19:46:34

●NSa26-65.akam.net2026-03-07 → 2026-07-01 · 3 obs

○ 2019-08-25 01:21:38
● 2026-03-07 00:28:26
● 2026-07-01 19:46:34

●NSa4-67.akam.net2026-03-07 → 2026-07-01 · 3 obs

○ 2019-08-25 01:21:38
● 2026-03-07 00:28:26
● 2026-07-01 19:46:34

●NSa7-64.akam.net2026-03-07 → 2026-07-01 · 3 obs

○ 2019-08-25 01:21:38
● 2026-03-07 00:28:26
● 2026-07-01 19:46:34

○NSns.d21.org2015-08-21 → 2019-08-25 · 4 obs

● 2015-08-21 05:37:04
● 2019-08-25 01:21:38
○ 2026-03-07 00:28:26
○ 2026-07-01 19:46:34

○NSns2.d21.org2015-08-21 → 2018-11-26 · 4 obs

● 2015-08-21 05:37:04
● 2018-11-26 09:59:32
○ 2019-08-25 01:21:38
○ 2026-07-01 19:46:34

●MXcloud.jiransecurity.com2017-02-15 → 2026-07-01 · 3 obs

○ 2015-08-21 05:37:04
● 2017-02-15 23:20:26
● 2026-07-01 19:46:34

●MXcloud2.jiransecurity.com2017-02-15 → 2026-07-01 · 3 obs

○ 2015-08-21 05:37:04
● 2017-02-15 23:20:26
● 2026-07-01 19:46:34

●MXd21-org.mail.protection.outlook.com2026-03-07 → 2026-07-01 · 3 obs

○ 2019-08-25 01:21:38
● 2026-03-07 00:28:26
● 2026-07-01 19:46:34

○MXmail.d21.org2015-08-21 → 2019-08-25 · 4 obs

● 2015-08-21 05:37:04
● 2019-08-25 01:21:38
○ 2026-03-07 00:28:26
○ 2026-07-01 19:46:34

○MXmail1.d21.org2015-08-21 → 2018-11-26 · 4 obs

● 2015-08-21 05:37:04
● 2018-11-26 09:59:32
○ 2019-08-25 01:21:38
○ 2026-07-01 19:46:34

○MXmail2.d21.org2019-08-25 → 2019-08-25 · 4 obs

○ 2018-11-26 09:59:32
● 2019-08-25 01:21:38
○ 2026-03-07 00:28:26
○ 2026-07-01 19:46:34

●A61.106.211.842015-08-21 → 2026-07-01 · 2 obs

● 2015-08-21 05:37:04
● 2026-07-01 19:46:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org	-
d21.org	a4-67.akam.net, a7-64.akam.net, a1-190.akam.net, a13-67.akam.net...	-

✅ Authoritative Response

Server:72.246.46.67

NS records: a4-67.akam.net, a7-64.akam.net, a1-190.akam.net, a13-67.akam.net, a20-67.akam.net, a26-65.akam.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for d21.org (unsigned zone)

⏱️ Timing

Total: 516ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`61.106.211.84`
NS	6	`a1-190.akam.net, a20-67.akam.net...`
MX	3	`d21-org.mail.protection.outlook.com (pri, cloud.jiransecurity.com (pri: 0)...`
TXT	3	`google-site-verification=kVHNedUQdem3pVU, MS=90B178149D7DC6756A35AC0E715003BCDE046...`
SOA	1	`a1-190.akam.net hostmaster.d21.org`

Analysis

Hierarchy

d21.org is the parent domain of www.d21.org and ns.d21.org.

IP Addresses

d21.org points to a single IP number: 61.106.211.84.

Additional host names — www.einkerem.or.kr, einkerem.or.kr, einkerem.kr and two others — share IP numbers with d21.org.

Name Servers

d21.org delegates authority to 6 name servers: a1-190.akam.net, a13-67.akam.net, a20-67.akam.net plus 3 other.

d21.org shares at least some of its name servers with other domains, including esbrietevents.com, steadre.com, makesomethinggreat.com and two others.

These name servers are frequently seen alongside a7-64.akam.net, a4-67.akam.net, a26-65.akam.net and 7 other name servers.

Host names with two IP numbers:

a1-190.akam.net directs traffic to 193.108.91.190 and 2600:1401:2::be.

a13-67.akam.net directs traffic to 2.22.230.67 and 2600:1480:800::43.

a20-67.akam.net directs traffic to 95.100.175.67 and 2a02:26f0:67::43.

a26-65.akam.net directs traffic to 23.74.25.65 and 2600:1480:b800::41.

a4-67.akam.net directs traffic to 72.246.46.67 and 2600:1480:9000::43.

a7-64.akam.net directs traffic to 23.61.199.64 and 2600:1406:32::40.