`c-k-u.org`

DNSSEC	⚠️ Not signed
A	3.33.139.32^{🇺🇸 Amazon3.33.128.0/20}
		PTR	`aeedc42b70c898c66.awsglobalaccelerator.com`
NS	`ns1.markmonitor.com` ⭐
		A	2620:10a:80a8::1^{🇨🇦 CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.160.1^{🇨🇦 CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
NS	`ns2.markmonitor.com`
		A	2001:67c:10b8::1^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns2.markmonitor.com`
		A	176.97.158.1^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns2.markmonitor.com`
NS	`ns3.markmonitor.com`
		A	2620:10a:80a9::1^{🇨🇦 CIRA-32620:10a:80a9::/48 markmonitor v6 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.161.1^{🇨🇦 CIRA-3149.112.161.0/24 markmonitor v4 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
NS	`ns4.markmonitor.com`
		A	2001:67c:1bc::1^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast}
			PTR	`ns1.markmonitor.com`
		A	192.174.68.1^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net}
NS	`ns5.markmonitor.com`
		A	2620:10a:80a8::2^{🇨🇦 CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.160.2^{🇨🇦 CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
NS	`ns6.markmonitor.com`
		A	2001:67c:10b8::3^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns6.markmonitor.com`
		A	176.97.158.3^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns6.markmonitor.com`
NS	`ns7.markmonitor.com`
		A	2620:10a:80a9::2^{🇨🇦 CIRA-32620:10a:80a9::/48 markmonitor v6 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.161.2^{🇨🇦 CIRA-3149.112.161.0/24 markmonitor v4 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
SOA	`ns1.markmonitor.com`hostmaster@markmonitor.com 2019-11-13 #2

`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=1784395138

Same first word

c-k-u.net

c-k-u.org

c-k-u.com

Similar names

k-c-u.de

DNS History

9 records (8 active, 1 former)

●NSns1.markmonitor.com2015-08-22 → 2026-07-18 · 2 obs

● 2015-08-22 09:46:20
● 2026-07-18 17:37:18

●NSns2.markmonitor.com2015-08-22 → 2026-07-18 · 2 obs

● 2015-08-22 09:46:20
● 2026-07-18 17:37:18

●NSns3.markmonitor.com2015-08-22 → 2026-07-18 · 2 obs

● 2015-08-22 09:46:20
● 2026-07-18 17:37:18

●NSns4.markmonitor.com2015-08-22 → 2026-07-18 · 2 obs

● 2015-08-22 09:46:20
● 2026-07-18 17:37:18

●NSns5.markmonitor.com2015-08-22 → 2026-07-18 · 2 obs

● 2015-08-22 09:46:20
● 2026-07-18 17:37:18

●NSns6.markmonitor.com2015-08-22 → 2026-07-18 · 2 obs

● 2015-08-22 09:46:20
● 2026-07-18 17:37:18

●NSns7.markmonitor.com2015-08-22 → 2026-07-18 · 2 obs

● 2015-08-22 09:46:20
● 2026-07-18 17:37:18

●A3.33.139.322026-07-01 → 2026-07-18 · 3 obs

○ 2020-02-18 11:00:32
● 2026-07-01 08:39:02
● 2026-07-18 17:37:18

○A72.52.10.142015-08-22 → 2020-02-18 · 4 obs

● 2015-08-22 09:46:20
● 2020-02-18 11:00:32
○ 2026-07-01 08:39:02
○ 2026-07-18 17:37:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
c-k-u.org	ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com...	-

✅ Authoritative Response

Server:149.112.160.1

NS records: ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com, ns7.markmonitor.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for c-k-u.org (unsigned zone)

⏱️ Timing

Total: 737ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`3.33.139.32`
NS	7	`ns1.markmonitor.com, ns2.markmonitor.com...`
SOA	1	`ns1.markmonitor.com hostmaster.markmonit`

Analysis

IP Addresses

c-k-u.org directs to one IP number, which is 3.33.139.32.

Among the host names that share IP numbers with c-k-u.org are thomsonreutersaumentum.info, quinlan.com, estudocoracaopeso.com and two others.

Name Servers

DNS for c-k-u.org is handled by 7 name servers: ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com and 4 others.

c-k-u.org shares at least some of its name servers with other domains, including expressbyholidayinn.es, limitedsupportgroup.us, ecigsliquids.net and two others.

These name servers are frequently seen alongside the name servers ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com and ns7.markmonitor.com.

Hosts with two IP numbers each:

ns1.markmonitor.com has two IP addresses: 149.112.160.1 and 2620:10a:80a8::1.

ns2.markmonitor.com has two IP addresses: 176.97.158.1 and 2001:67c:10b8::1.

ns3.markmonitor.com has two IP addresses: 149.112.161.1 and 2620:10a:80a9::1.

ns4.markmonitor.com has two IP addresses: 192.174.68.1 and 2001:67c:1bc::1.

ns5.markmonitor.com has two IP addresses: 149.112.160.2 and 2620:10a:80a8::2.

ns6.markmonitor.com has two IP addresses: 176.97.158.3 and 2001:67c:10b8::3.

ns7.markmonitor.com has two IP addresses: 149.112.161.2 and 2620:10a:80a9::2.