`21clock.com`

DNSSEC	⚠️ Not signed
A	31.220.77.139^{🇩🇪 CONTABO31.220.72.0/21}
		PTR	`vmi2115727.contaboserver.net`
NS	`dns2.nsdns.info` ⭐
		A	2a04:2b00:14dd::33^{🇬🇧 RCODEZERO-ANYCAST-SEC22a04:2b00:14dd::/48}
			PTR	`dns2.nsdns.info`
			PTR	`ns33.j.centralnic-dns.com`
		A	194.50.187.33^{🇩🇪 RCODEZERO-ANYCAST-SEC2194.50.187.0/24}
			PTR	`ns1.pdns.ispapi.net`
NS	`dns1.nsdns.info`
		A	2a04:2b00:14cc::33^{🇬🇧 RCODEZERO-ANYCAST-SEC1-TLD2a04:2b00:14cc::/48}
			PTR	`dns1.nsdns.info`
			PTR	`ns33.i.centralnic-dns.com`
		A	193.227.117.33^{🇩🇪 RCODEZERO-ANYCAST-SEC1-TLD193.227.117.0/24}
NS	`dns3.nsdns.info`
		A	2a04:2b00:14ee::33^{🇬🇧 RCODEZERO-ANYCAST-SEC22a04:2b00:14ee::/48}
			PTR	`dns3.nsdns.info`
			PTR	`ns33.k.centralnic-dns.com`
		A	194.0.182.33^{🇩🇪 RCODEZERO-ANYCAST-SEC2194.0.182.0/24}
MX	`mx-01.mail-forwarder.io` ⭐
		A	2a00:18e0:5:2:7577:4e4d:413b:f507^{🇩🇪 Amazon2a00:18e0:5::/48 EC2 Prefix}
			PTR	`relay.mail-forwarder.io`
		A	2a00:18e0:5:3:dfe2:c743:85aa:61bc^{🇩🇪 Amazon2a00:18e0:5::/48 EC2 Prefix}
			PTR	`relay.mail-forwarder.io`
		A	5.22.145.16^{🇩🇪 Amazon5.22.145.0/24}
			PTR	`relay.mail-forwarder.io`
		A	5.22.145.121^{🇩🇪 Amazon5.22.145.0/24}
			PTR	`relay.mail-forwarder.io`
MX	`mx-02.mail-forwarder.io` ⭐
		A	2a00:18e0:5:2:7577:4e4d:413b:f507^{🇩🇪 Amazon2a00:18e0:5::/48 EC2 Prefix}
			PTR	`relay.mail-forwarder.io`
		A	2a00:18e0:5:3:dfe2:c743:85aa:61bc^{🇩🇪 Amazon2a00:18e0:5::/48 EC2 Prefix}
			PTR	`relay.mail-forwarder.io`
		A	5.22.145.16^{🇩🇪 Amazon5.22.145.0/24}
			PTR	`relay.mail-forwarder.io`
		A	5.22.145.121^{🇩🇪 Amazon5.22.145.0/24}
			PTR	`relay.mail-forwarder.io`
TXT	`google-site-verification=DN0Qzv5JTHpxECM__ynNuHxYX7Lx0P6CoDdBUgKBZIU`
TXT	`google-site-verification=h9x9nuGz2AzE41E2sFa0oY4wXcg7_OGRcMpeIXGRg8E`
TXT	`v=spf1 mx a ip4:31.220.77.139 include:spf.mailjet.com ~all`
SOA	`dns2.nsdns.info`tech@key-systems.net 2026-02-12 #0

`com`

	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=1775735707

Same first word

21clock.com

DNS History

13 records (6 active, 7 former)

●NSdns1.nsdns.info2026-04-09 → 2026-04-09 · 2 obs

○ 2017-03-23 09:28:48
● 2026-04-09 12:01:46

●NSdns2.nsdns.info2026-04-09 → 2026-04-09 · 2 obs

○ 2017-03-23 09:28:48
● 2026-04-09 12:01:46

●NSdns3.nsdns.info2026-04-09 → 2026-04-09 · 2 obs

○ 2017-03-23 09:28:48
● 2026-04-09 12:01:46

○NSjuming.dnsdun.com2017-03-23 → 2017-03-23 · 3 obs

○ 2016-06-24 09:15:58
● 2017-03-23 09:28:48
○ 2026-04-09 12:01:46

○NSjuming.dnsdun.net2017-03-23 → 2017-03-23 · 3 obs

○ 2016-06-24 09:15:58
● 2017-03-23 09:28:48
○ 2026-04-09 12:01:46

○NSns3.01isp.com2015-06-11 → 2016-06-24 · 5 obs

○ 2008-11-14 01:35:00
● 2015-06-11 15:42:26
● 2016-06-24 09:15:58
○ 2017-03-23 09:28:48
○ 2026-04-09 12:01:46

○NSns4.01isp.net2015-06-11 → 2016-06-24 · 5 obs

○ 2008-11-14 01:35:00
● 2015-06-11 15:42:26
● 2016-06-24 09:15:58
○ 2017-03-23 09:28:48
○ 2026-04-09 12:01:46

●MXmx-01.mail-forwarder.io2026-04-09 → 2026-04-09 · 1 obs

● 2026-04-09 12:01:46

●MXmx-02.mail-forwarder.io2026-04-09 → 2026-04-09 · 1 obs

● 2026-04-09 12:01:46

○A107.148.102.2092017-03-23 → 2017-03-23 · 3 obs

○ 2016-06-24 09:15:58
● 2017-03-23 09:28:48
○ 2026-04-09 12:01:46

○A111.221.108.962015-10-27 → 2016-06-24 · 5 obs

○ 2008-11-14 01:35:00
● 2015-10-27 03:59:44
● 2016-06-24 09:15:58
○ 2017-03-23 09:28:48
○ 2026-04-09 12:01:46

○A174.128.228.1002015-06-11 → 2015-06-11 · 4 obs

○ 2008-11-14 01:35:00
● 2015-06-11 15:42:26
○ 2015-10-27 03:59:44
○ 2026-04-09 12:01:46

●A31.220.77.1392026-04-09 → 2026-04-09 · 2 obs

○ 2017-03-23 09:28:48
● 2026-04-09 12:01:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
21clock.com	dns2.nsdns.info, dns1.nsdns.info, dns3.nsdns.info	-

✅ Authoritative Response

Server:193.227.117.33

NS records: dns2.nsdns.info, dns1.nsdns.info, dns3.nsdns.info

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21clock.com (unsigned zone)

⏱️ Timing

Total: 666ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`31.220.77.139`
NS	3	`dns1.nsdns.info, dns2.nsdns.info...`
MX	2	`mx-01.mail-forwarder.io (pri: 10), mx-02.mail-forwarder.io (pri: 10)`
TXT	3	`google-site-verification=DN0Qzv5JTHpxECM, google-site-verification=h9x9nuGz2AzE41E...`
SOA	1	`dns2.nsdns.info tech.key-systems.net`

Analysis

IP Addresses

21clock.com maps to IP address 31.220.77.139.

Other host names for instance vmi2115727.contaboserver.net and karty.com share IP numbers with 21clock.com.

Name Servers

21clock.com is delegated to name servers dns1.nsdns.info, dns2.nsdns.info and dns3.nsdns.info.

21clock.com at least partially shares name servers with other domains such as geostoronto.com, ialana.de, medical-hotels.de, zyberware.org and temco-group.de.

these name servers are commonly used with the name servers ns1.domaindiscount24.net.

Host names with two IP numbers:

dns1.nsdns.info points to 2a04:2b00:14cc::33 and 193.227.117.33.

dns2.nsdns.info points to 2a04:2b00:14dd::33 and 194.50.187.33.

dns3.nsdns.info points to 2a04:2b00:14ee::33 and 194.0.182.33.

Mail Servers

Two mail servers handle 21clock.com: mx-01.mail-forwarder.io and mx-02.mail-forwarder.io.

21clock.com shares the same mail server setup as other domains, including weltderwunder-abonnieren.de, lusiardi.eu, dasberg1982.at, lustig-tv.com and freizeitwoche-online.de.

21clock.com shares mail servers with other domains, at least partially, for instance fcbayern-tours.de, amovens.org, mysunrising.com and skovgaard.ca.