`postmaster.speed21.net`

CNAME	`speed21.net`
DNSSEC	⚠️ Not signed
A	211.41.79.44^{🇰🇷 KT-NET211.41.64.0/19 contact chejumen@hitel.net if necessary contact country1@hitel.net if necessary contact express@hitel.net if necessary contact ezmate@hitel.net if necessary contact han322@hitel.net if necessary}
NS	`speed21.net` ⭐
		A	211.41.79.44^{🇰🇷 KT-NET211.41.64.0/19 contact chejumen@hitel.net if necessary contact country1@hitel.net if necessary contact express@hitel.net if necessary contact ezmate@hitel.net if necessary contact han322@hitel.net if necessary}
NS	`ns1.cafe24.co.kr`
		A	112.175.246.232^{🇰🇷 KT-NET112.168.0.0/13}
			PTR	`gjit.kr`
			PTR	`snoweb.kr`
			PTR	`sinc2030.co.kr`
		A	112.175.246.233^{🇰🇷 KT-NET112.168.0.0/13}
		A	175.125.93.136^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
		A	175.125.93.137^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
NS	`ns1.cafe24.com`
		A	112.175.246.230^{🇰🇷 KT-NET112.168.0.0/13}
			PTR	`ip-112-175-246-230.defastlink.net`
		A	112.175.246.231^{🇰🇷 KT-NET112.168.0.0/13}
			PTR	`ip-112-175-246-231.defastlink.net`
		A	116.126.143.242^{🇰🇷 SKB-NET116.126.0.0/16 SK Broadband}
			PTR	`ip-116-126-143-242.defastlink.net`
		A	175.125.93.134^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
			PTR	`ip-175-125-93-134.defastlink.net`
		A	175.125.93.135^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
			PTR	`ip-175-125-93-135.defastlink.net`
NS	`ns2.cafe24.co.kr`
		A	112.175.247.232^{🇰🇷 KT-NET112.168.0.0/13}
			PTR	`snoweb.kr`
			PTR	`sarchi.co.kr`
		A	112.175.247.233^{🇰🇷 KT-NET112.168.0.0/13}
		A	175.125.93.146^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
		A	175.125.93.147^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
NS	`ns2.cafe24.com`
		A	1.226.85.4^{🇰🇷 SKB-NET1.224.0.0/13 auto-generated route object for 1.224.0.0/13}
			PTR	`ip-1-226-85-4.defastlink.net`
		A	1.234.0.4^{🇰🇷 SKB-NET1.232.0.0/13 auto-generated route object for 1.232.0.0/13}
			PTR	`ip-1-234-0-4.defastlink.net`
		A	112.175.11.4^{🇰🇷 KT-NET112.168.0.0/13}
			PTR	`ip-112-175-11-4.defastlink.net`
		A	112.175.12.4^{🇰🇷 KT-NET112.168.0.0/13}
			PTR	`ip-112-175-12-4.defastlink.net`
MX	`w-103.cafe24.com` ⭐
		A	220.73.160.224^{🇰🇷 KT-NET220.72.0.0/13 KORnet Powered BY Korea Telecom}
TXT	`v=spf1 ip4:220.73.160.224 ~all`
SOA	`speed21.net`postmaster@speed21.net serial=20061103

`speed21.net`

	DNSSEC	⚠️ Not signed
	A	211.41.79.44^{🇰🇷 KT-NET211.41.64.0/19 contact chejumen@hitel.net if necessary contact country1@hitel.net if necessary contact express@hitel.net if necessary contact ezmate@hitel.net if necessary contact han322@hitel.net if necessary}
	NS	`speed21.net` ⭐
	NS	`ns1.cafe24.co.kr`
	NS	`ns1.cafe24.com`
	NS	`ns2.cafe24.co.kr`
	NS	`ns2.cafe24.com`
	MX	`w-103.cafe24.com` ⭐
	TXT	`v=spf1 ip4:220.73.160.224 ~all`
	SOA	`speed21.net`postmaster@speed21.net serial=20061103

Same first word

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DNS History

8 records (1 active, 7 former)

○NSns1.cafe24.co.kr2015-10-30 → 2016-04-08 · 4 obs

● 2015-10-30 13:13:16
● 2016-04-08 03:27:06
○ 2026-03-18 16:57:50
○ 2026-03-20 22:33:44

○NSns1.cafe24.com2015-10-30 → 2016-04-08 · 4 obs

● 2015-10-30 13:13:16
● 2016-04-08 03:27:06
○ 2026-03-18 16:57:50
○ 2026-03-20 22:33:44

○NSns2.cafe24.co.kr2015-10-30 → 2016-04-08 · 4 obs

● 2015-10-30 13:13:16
● 2016-04-08 03:27:06
○ 2026-03-18 16:57:50
○ 2026-03-20 22:33:44

○NSns2.cafe24.com2015-10-30 → 2016-04-08 · 4 obs

● 2015-10-30 13:13:16
● 2016-04-08 03:27:06
○ 2026-03-18 16:57:50
○ 2026-03-20 22:33:44

○NSspeed21.net2015-10-30 → 2016-04-08 · 4 obs

● 2015-10-30 13:13:16
● 2016-04-08 03:27:06
○ 2026-03-18 16:57:50
○ 2026-03-20 22:33:44

○MXw-103.cafe24.com2015-10-30 → 2016-04-08 · 4 obs

● 2015-10-30 13:13:16
● 2016-04-08 03:27:06
○ 2026-03-18 16:57:50
○ 2026-03-20 22:33:44

○A220.73.160.2242015-06-20 → 2016-04-08 · 4 obs

● 2015-06-20 10:49:02
● 2016-04-08 03:27:06
○ 2026-03-18 16:57:50
○ 2026-03-20 22:33:44

●CNAMEspeed21.net2015-06-20 → 2026-03-20 · 2 obs

● 2015-06-20 10:49:02
● 2026-03-20 22:33:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	k.gtld-servers.net, m.gtld-servers.net, g.gtld-servers.net, i.gtld-servers.net...	-
speed21.net	ns2.cafe24.com, ns1.cafe24.com, ns2.cafe24.co.kr, ns1.cafe24.co.kr	-

✅ Authoritative Response

Server: 112.175.246.233

NS records: ns2.cafe24.com, ns1.cafe24.com, ns2.cafe24.co.kr, ns1.cafe24.co.kr

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for speed21.net (unsigned zone)

⏱️ Timing

Total: 1676ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`speed21.net`

Analysis

IP Addresses

postmaster.speed21.net points to an IP address: 211.41.79.44.

other host names include raychem.co.kr, xn--980b961au2djys.com, ellimct.com, cricket.or.kr and hpdm-small-p4-0035.cafe24.com; they share IP numbers with postmaster.speed21.net.

Name Servers

postmaster.speed21.net is delegated to five name servers: speed21.net, ns1.cafe24.com, ns2.cafe24.com, ns1.cafe24.co.kr and ns2.cafe24.co.kr.

postmaster.speed21.net at least partially shares name servers with other domains, for instance apt-care.com, jsastar.com, xn--9i1b2b51us7fivh0wehudca645i.com, trianon.kr and sageorimarket.kr.

These name servers are commonly used with ns.cafe24.com, ns0.cafe24.com, dns1.cafe24.com, dns2.cafe24.com, dns1.cafe24.co.kr and dns2.cafe24.co.kr.

Host names with five IP numbers:

ns1.cafe24.com points to 112.175.246.230, 112.175.246.231, 116.126.143.242, 175.125.93.134 and 175.125.93.135.

Host names with four IP numbers:

ns2.cafe24.com points to 1.226.85.4, 1.234.0.4, 112.175.11.4 and 112.175.12.4; ns1.cafe24.co.kr points to 112.175.246.232, 112.175.246.233, 175.125.93.136 and 175.125.93.137; ns2.cafe24.co.kr points to 112.175.247.232, 112.175.247.233, 175.125.93.146 and 175.125.93.147.

Host names with one IP number:

speed21.net points to 211.41.79.44.

Mail Servers

postmaster.speed21.net is handled by a single mail server, w-103.cafe24.com.

postmaster.speed21.net shares the same mail server setup as other domains such as speed21.net, isonan.com and bitbank.co.kr.

The host name w-103.cafe24.com points to IP 220.73.160.224.

postmaster.speed21.net - robtex.com