`ncktw.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:d12e^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:172e^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.23.46^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.209.46^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dorthy.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3af9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dorthy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dorthy.ns.cloudflare.com`
		A	108.162.192.249^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	172.64.32.249^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	173.245.58.249^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
NS	`rayden.ns.cloudflare.com`
		A	2606:4700:58::a29f:2ca3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rayden.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3a3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rayden.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23a3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rayden.ns.cloudflare.com`
		A	108.162.195.163^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rayden.ns.cloudflare.com`
		A	162.159.44.163^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rayden.ns.cloudflare.com`
		A	172.64.35.163^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rayden.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.23.46, 172.67.209.46
		IPv6	2606:4700:3030::ac43:d12e, 2606:4700:3037::6815:172e
SOA	`dorthy.ns.cloudflare.com`dns@cloudflare.com serial=2398137644

`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=1771291435

Same first word

ncktw.com

Similar names

nwktc.org

ktwcn.com

wkntc.org

cnkwt.com

ktnwc.org

ntckw.com

cnktw.com.cn

nwktc.com

nwktc.edu

cnktw.com

cntwk.com

DNS History

18 records (6 active, 12 former)

○NSdns7.hichina.com2015-08-20 → 2016-02-01 · 4 obs

● 2015-08-20 08:41:42
● 2016-02-01 13:20:54
○ 2016-04-26 16:56:38
○ 2026-03-23 21:33:02

○NSdns8.hichina.com2015-08-20 → 2016-02-01 · 4 obs

● 2015-08-20 08:41:42
● 2016-02-01 13:20:54
○ 2016-04-26 16:56:38
○ 2026-03-23 21:33:02

●NSdorthy.ns.cloudflare.com2026-03-23 → 2026-03-23 · 2 obs

○ 2016-11-25 15:03:54
● 2026-03-23 21:33:02

○NSexpirens3.hichina.com2016-04-26 → 2016-05-09 · 5 obs

○ 2016-02-01 13:20:54
● 2016-04-26 16:56:38
● 2016-05-09 22:22:54
○ 2016-08-17 01:04:32
○ 2026-03-23 21:33:02

○NSexpirens4.hichina.com2016-04-26 → 2016-05-09 · 5 obs

○ 2016-02-01 13:20:54
● 2016-04-26 16:56:38
● 2016-05-09 22:22:54
○ 2016-11-25 15:03:54
○ 2026-03-23 21:33:02

○NSjuming.dnsdun.com2016-08-17 → 2016-11-25 · 4 obs

○ 2016-05-09 22:22:54
● 2016-08-17 01:04:32
● 2016-11-25 15:03:54
○ 2026-03-23 21:33:02

○NSjuming.dnsdun.net2016-11-25 → 2016-11-25 · 3 obs

○ 2016-08-17 01:04:32
● 2016-11-25 15:03:54
○ 2026-03-23 21:33:02

○NSns1.julydns.com2026-03-23 → 2026-03-23 · 1 obs

○ 2026-03-23 21:33:02

○NSns2.julydns.com2026-03-23 → 2026-03-23 · 1 obs

○ 2026-03-23 21:33:02

●NSrayden.ns.cloudflare.com2026-03-23 → 2026-03-23 · 2 obs

○ 2016-11-25 15:03:54
● 2026-03-23 21:33:02

○MXmail.ncktw.com2015-08-20 → 2016-02-01 · 4 obs

● 2015-08-20 08:41:42
● 2016-02-01 13:20:54
○ 2016-04-26 16:56:38
○ 2026-03-23 21:33:02

●A104.21.23.462026-03-23 → 2026-03-23 · 2 obs

○ 2016-11-25 15:03:54
● 2026-03-23 21:33:02

●A172.67.209.462026-03-23 → 2026-03-23 · 2 obs

○ 2016-11-25 15:03:54
● 2026-03-23 21:33:02

○A223.7.173.172015-08-20 → 2016-02-01 · 4 obs

● 2015-08-20 08:41:42
● 2016-02-01 13:20:54
○ 2016-04-26 16:56:38
○ 2026-03-23 21:33:02

●A2606:4700:3030::ac43:d12e2026-03-23 → 2026-03-23 · 2 obs

○ 2016-11-25 15:03:54
● 2026-03-23 21:33:02

●A2606:4700:3037::6815:172e2026-03-23 → 2026-03-23 · 2 obs

○ 2016-11-25 15:03:54
● 2026-03-23 21:33:02

○A42.120.158.782016-04-26 → 2016-05-09 · 5 obs

○ 2016-02-01 13:20:54
● 2016-04-26 16:56:38
● 2016-05-09 22:22:54
○ 2016-08-17 01:04:32
○ 2026-03-23 21:33:02

○A43.249.175.1992016-08-17 → 2016-11-25 · 4 obs

○ 2016-05-09 22:22:54
● 2016-08-17 01:04:32
● 2016-11-25 15:03:54
○ 2026-03-23 21:33:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, f.gtld-servers.net, i.gtld-servers.net, d.gtld-servers.net...	-
ncktw.com	dorthy.ns.cloudflare.com, rayden.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.249

NS records: dorthy.ns.cloudflare.com, rayden.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ncktw.com (unsigned zone)

⏱️ Timing

Total: 228ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.209.46, 104.21.23.46`
AAAA	2	`2606:4700:3037::6815:172e, 2606:4700:3030::ac43:d12e`
NS	2	`dorthy.ns.cloudflare.com, rayden.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dorthy.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (dorthy.ns.cloudflare.com, dorthy.ns.cloudflare.com, dorthy.ns.cloudflare.com...)

Analysis

IP Addresses

ncktw.com maps to four IP numbers: 2606:4700:3030::ac43:d12e, 2606:4700:3037::6815:172e, 104.21.23.46 and 172.67.209.46.

Other host names, for instance spinelite.co.uk, www.86858.net, www.ulab.edu.bd, tiantianwuliucom.com and comber.irish share IP numbers with ncktw.com.

Name Servers

Two name servers dorthy.ns.cloudflare.com and rayden.ns.cloudflare.com are delegated to ncktw.com.

ncktw.com uses the same name server configuration as other domains, such as keshu56.com, dianhuahuiyi.net, eastenews.com, asus58.com and youyayunwei.com.

ncktw.com at least partially shares name servers with other domains such as aircraft-materials.co.uk, maddiemcmahon.com, rh81888.com, nepalisme.com and nexalybit-solution.com.

These name servers are commonly used with jen.ns.cloudflare.com and norman.ns.cloudflare.com.

Host names with six IP numbers: Host name dorthy.ns.cloudflare.com points to 2606:4700:50::adf5:3af9, 2803:f800:50::6ca2:c0f9, 2a06:98c1:50::ac40:20f9, 108.162.192.249, 172.64.32.249 and 173.245.58.249; host name rayden.ns.cloudflare.com points to 2606:4700:58::a29f:2ca3, 2803:f800:50::6ca2:c3a3, 2a06:98c1:50::ac40:23a3, 108.162.195.163, 162.159.44.163 and 172.64.35.163.

ncktw.com - robtex.com

ncktw.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`ncktw.com`

`com`