`33721.cn`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:b778^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:53f2^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.83.242^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.183.120^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`jillian.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:262c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jillian.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c22c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jillian.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:222c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jillian.ns.cloudflare.com`
		A	108.162.194.44^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jillian.ns.cloudflare.com`
		A	162.159.38.44^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jillian.ns.cloudflare.com`
		A	172.64.34.44^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jillian.ns.cloudflare.com`
NS	`nash.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bd1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1d1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nash.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21d1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nash.ns.cloudflare.com`
		A	108.162.193.209^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
		A	172.64.33.209^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
		A	173.245.59.209^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.83.242, 172.67.183.120
		IPv6 hints	2606:4700:3034::ac43:b778, 2606:4700:3035::6815:53f2
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=93, name=cloudflare-ech.com
SOA	`jillian.ns.cloudflare.com`dns@cloudflare.com serial=2406658580

`cn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2035095265

Same first word

33721.cn

33721.com

Similar names

73231.vip

73231.com

23173.com

21337.com

32731.co

21337.us

17323.com

13237.com

12733.com

21373.cn

13732.com

71233.cn

73321.cc

73123.com

13237.cn

37312.com

27133.com

21373.com

12373.jp

72313.cn

12337.com

13723.cc

13372.com

21373.gg

73231.cn

13273.com

31732.cn

13273.cn

23317.com

37321.us

12337.vip

31327.com

17332.us

33127.us

27313.df.gov.br

31723.cc

23371.us

72313.us

32713.casino

33271.cfd

32173.us

33712.com

13327.com

37321.com

73123.us

17233.net

72313.net

27313.de

33172.us

12733.cn

33127.com

DNS History

18 records (6 active, 12 former)

○NSdns1.iidns.com2015-11-27 → 2016-05-09 · 4 obs

● 2015-11-27 06:52:26
● 2016-05-09 05:14:00
○ 2018-11-09 03:18:56
○ 2026-07-27 05:43:38

○NSdns2.iidns.com2015-11-27 → 2016-05-09 · 4 obs

● 2015-11-27 06:52:26
● 2016-05-09 05:14:00
○ 2018-11-09 03:18:56
○ 2026-07-27 05:43:38

○NSdns3.iidns.com2015-11-27 → 2016-05-09 · 4 obs

● 2015-11-27 06:52:26
● 2016-05-09 05:14:00
○ 2018-11-09 03:18:56
○ 2026-07-27 05:43:38

○NSdns4.iidns.com2015-11-27 → 2016-05-09 · 4 obs

● 2015-11-27 06:52:26
● 2016-05-09 05:14:00
○ 2018-11-09 03:18:56
○ 2026-07-27 05:43:38

○NSdns5.iidns.com2015-11-27 → 2016-05-09 · 4 obs

● 2015-11-27 06:52:26
● 2016-05-09 05:14:00
○ 2018-11-09 03:18:56
○ 2026-07-27 05:43:38

○NSdns6.iidns.com2015-11-27 → 2016-05-09 · 4 obs

● 2015-11-27 06:52:26
● 2016-05-09 05:14:00
○ 2018-11-09 03:18:56
○ 2026-07-27 05:43:38

●NSjillian.ns.cloudflare.com2026-07-21 → 2026-07-27 · 3 obs

○ 2018-11-09 03:18:56
● 2026-07-21 12:20:40
● 2026-07-27 05:43:38

●NSnash.ns.cloudflare.com2026-07-21 → 2026-07-27 · 3 obs

○ 2018-11-09 03:18:56
● 2026-07-21 12:20:40
● 2026-07-27 05:43:38

●A104.21.83.2422026-07-21 → 2026-07-27 · 3 obs

○ 2018-11-09 03:18:56
● 2026-07-21 12:20:40
● 2026-07-27 05:43:38

●A172.67.183.1202026-07-21 → 2026-07-27 · 3 obs

○ 2018-11-09 03:18:56
● 2026-07-21 12:20:40
● 2026-07-27 05:43:38

○A198.148.92.532015-08-04 → 2015-08-04 · 3 obs

● 2015-08-04 11:40:44
○ 2018-11-09 03:18:56
○ 2026-07-27 05:43:38

○A198.148.92.562015-08-04 → 2015-08-04 · 3 obs

● 2015-08-04 11:40:44
○ 2018-11-09 03:18:56
○ 2026-07-27 05:43:38

○A198.148.92.582015-08-04 → 2015-08-04 · 3 obs

● 2015-08-04 11:40:44
○ 2018-11-09 03:18:56
○ 2026-07-27 05:43:38

○A198.148.92.622015-08-04 → 2015-08-04 · 3 obs

● 2015-08-04 11:40:44
○ 2018-11-09 03:18:56
○ 2026-07-27 05:43:38

●A2606:4700:3034::ac43:b7782026-07-21 → 2026-07-27 · 3 obs

○ 2018-11-09 03:18:56
● 2026-07-21 12:20:40
● 2026-07-27 05:43:38

●A2606:4700:3035::6815:53f22026-07-21 → 2026-07-27 · 3 obs

○ 2018-11-09 03:18:56
● 2026-07-21 12:20:40
● 2026-07-27 05:43:38

○CNAMEfw.ename.net2015-08-04 → 2015-08-04 · 3 obs

● 2015-08-04 11:40:44
○ 2015-11-27 06:52:26
○ 2026-07-27 05:43:38

○CNAMEpk.22.cn2018-11-09 → 2018-11-09 · 4 obs

○ 2015-11-27 06:52:26
● 2018-11-09 03:18:56
○ 2026-07-21 12:20:40
○ 2026-07-27 05:43:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
33721.cn	nash.ns.cloudflare.com, jillian.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.209

NS records: nash.ns.cloudflare.com, jillian.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 33721.cn (unsigned zone)

⏱️ Timing

Total: 965ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.83.242, 172.67.183.120`
AAAA	2	`2606:4700:3035::6815:53f2, 2606:4700:3034::ac43:b778`
NS	2	`jillian.ns.cloudflare.com, nash.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`jillian.ns.cloudflare.com dns.cloudflare`

Analysis

IP Addresses

33721.cn has four IP addresses: 104.21.83.242, 172.67.183.120, 2606:4700:3034::ac43:b778 and 2606:4700:3035::6815:53f2.

Among the host names that share IP numbers with 33721.cn are sailhunter.com, fywxw.com, ferrumit.net and two others.

Name Servers

DNS delegation for 33721.cn points to two name servers: jillian.ns.cloudflare.com and nash.ns.cloudflare.com.

33721.cn has the same name server delegation as a number of other domains, such as 24freeonlineblackjack.com, pcforautism.org, bestspiele.com and two more.

33721.cn shares at least some of its name servers with other domains, including webmadam.ru, authstep44-booking.info, nlpcn.org and two others.

These name servers are frequently paired with the name servers aspen.ns.cloudflare.com, meiling.ns.cloudflare.com and gabriel.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

jillian.ns.cloudflare.com has IP addresses 108.162.194.44, 162.159.38.44 and 172.64.34.44, plus 3 other.

nash.ns.cloudflare.com has IP addresses 108.162.193.209, 172.64.33.209 and 173.245.59.209, plus 3 other.

33721.cn - robtex.com

33721.cn

cn

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`33721.cn`

`cn`