`ustrong.cn`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:39e8^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:c17c^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.57.232^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.193.124^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`houston.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c34^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`houston.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c334^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`houston.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2334^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`houston.ns.cloudflare.com`
		A	108.162.195.52^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`houston.ns.cloudflare.com`
		A	162.159.44.52^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`houston.ns.cloudflare.com`
		A	172.64.35.52^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`houston.ns.cloudflare.com`
NS	`violet.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aed^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0ed^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`violet.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20ed^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`violet.ns.cloudflare.com`
		A	108.162.192.237^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
		A	172.64.32.237^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
		A	173.245.58.237^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.57.232, 172.67.193.124
		IPv6 hints	2606:4700:3033::6815:39e8, 2606:4700:3037::ac43:c17c
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=60, name=cloudflare-ech.com
SOA	`houston.ns.cloudflare.com`dns@cloudflare.com serial=2409381691

`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 2035-06-07 #85

Same first word

ustrong.org

ustrong.pro

ustrong.su

ustrong.biz

ustrong.asia

ustrong.cn

ustrong.com

ustrong.ru

Similar names

trosung.com

sngtour.ru

torsung.com

gronuts.com

ngtours.com.pt

sturgon.com

ngtours.com

suntorg.ru

trungso.com

trungso.net

gntours.com

truongs.com

strongu.com

gurtons.com

strongu.com.cn

runtogs.com

storung.be

gunstor.com

gotruns.com

grustno.ru

struong.ca

DNS History

25 records (6 active, 19 former)

○NSdm1.longmingdns.com2026-07-10 → 2026-07-10 · 4 obs

○ 2026-03-31 13:36:34
● 2026-07-10 10:26:40
○ 2026-07-13 20:32:12
○ 2026-07-19 14:21:08

○NSdm2.longmingdns.com2026-07-10 → 2026-07-10 · 4 obs

○ 2026-03-31 13:36:34
● 2026-07-10 10:26:40
○ 2026-07-13 20:32:12
○ 2026-07-19 14:21:08

○NSdns1.iidns.com2015-06-19 → 2016-01-23 · 4 obs

● 2015-06-19 08:05:02
● 2016-01-23 12:56:34
○ 2019-04-23 05:12:02
○ 2026-07-19 14:21:08

○NSdns2.iidns.com2015-06-19 → 2016-01-23 · 4 obs

● 2015-06-19 08:05:02
● 2016-01-23 12:56:34
○ 2019-04-23 05:12:02
○ 2026-07-19 14:21:08

○NSdns3.iidns.com2015-06-19 → 2016-01-23 · 4 obs

● 2015-06-19 08:05:02
● 2016-01-23 12:56:34
○ 2019-04-23 05:12:02
○ 2026-07-19 14:21:08

○NSdns4.iidns.com2015-06-19 → 2016-01-23 · 4 obs

● 2015-06-19 08:05:02
● 2016-01-23 12:56:34
○ 2019-04-23 05:12:02
○ 2026-07-19 14:21:08

○NSdns5.iidns.com2015-06-19 → 2016-01-23 · 4 obs

● 2015-06-19 08:05:02
● 2016-01-23 12:56:34
○ 2019-04-23 05:12:02
○ 2026-07-19 14:21:08

○NSdns6.iidns.com2015-06-19 → 2016-01-23 · 4 obs

● 2015-06-19 08:05:02
● 2016-01-23 12:56:34
○ 2019-04-23 05:12:02
○ 2026-07-19 14:21:08

●NShouston.ns.cloudflare.com2026-07-13 → 2026-07-19 · 3 obs

○ 2026-07-10 10:26:40
● 2026-07-13 20:32:12
● 2026-07-19 14:21:08

○NSns1.judns.com2026-03-31 → 2026-03-31 · 4 obs

○ 2019-04-23 05:12:02
● 2026-03-31 13:36:34
○ 2026-07-10 10:26:40
○ 2026-07-19 14:21:08

○NSns1.julydns.com2026-03-31 → 2026-03-31 · 4 obs

○ 2019-04-23 05:12:02
● 2026-03-31 13:36:34
○ 2026-07-10 10:26:40
○ 2026-07-19 14:21:08

○NSns2.judns.com2026-03-31 → 2026-03-31 · 4 obs

○ 2019-04-23 05:12:02
● 2026-03-31 13:36:34
○ 2026-07-10 10:26:40
○ 2026-07-19 14:21:08

○NSns2.julydns.com2026-03-31 → 2026-03-31 · 4 obs

○ 2019-04-23 05:12:02
● 2026-03-31 13:36:34
○ 2026-07-10 10:26:40
○ 2026-07-19 14:21:08

○NSns3.dns.com2019-04-23 → 2019-04-23 · 4 obs

○ 2016-01-23 12:56:34
● 2019-04-23 05:12:02
○ 2026-03-31 13:36:34
○ 2026-07-19 14:21:08

○NSns4.dns.com2019-04-23 → 2019-04-23 · 4 obs

○ 2016-01-23 12:56:34
● 2019-04-23 05:12:02
○ 2026-03-31 13:36:34
○ 2026-07-19 14:21:08

●NSviolet.ns.cloudflare.com2026-07-13 → 2026-07-19 · 3 obs

○ 2026-07-10 10:26:40
● 2026-07-13 20:32:12
● 2026-07-19 14:21:08

●A104.21.57.2322026-07-13 → 2026-07-19 · 3 obs

○ 2026-03-31 13:36:34
● 2026-07-13 20:32:12
● 2026-07-19 14:21:08

○A107.167.19.722016-01-14 → 2016-01-23 · 5 obs

○ 2015-06-19 08:05:02
● 2016-01-14 00:32:30
● 2016-01-23 12:56:34
○ 2019-04-23 05:12:02
○ 2026-07-19 14:21:08

○A107.167.19.732016-01-14 → 2016-01-23 · 5 obs

○ 2015-06-19 08:05:02
● 2016-01-14 00:32:30
● 2016-01-23 12:56:34
○ 2019-04-23 05:12:02
○ 2026-07-19 14:21:08

●A172.67.193.1242026-07-13 → 2026-07-19 · 3 obs

○ 2026-03-31 13:36:34
● 2026-07-13 20:32:12
● 2026-07-19 14:21:08

○A198.148.92.872015-06-19 → 2015-06-19 · 3 obs

● 2015-06-19 08:05:02
○ 2026-03-31 13:36:34
○ 2026-07-19 14:21:08

○A198.148.92.882015-06-19 → 2015-06-19 · 3 obs

● 2015-06-19 08:05:02
○ 2026-03-31 13:36:34
○ 2026-07-19 14:21:08

●A2606:4700:3033::6815:39e82026-07-13 → 2026-07-19 · 3 obs

○ 2026-03-31 13:36:34
● 2026-07-13 20:32:12
● 2026-07-19 14:21:08

●A2606:4700:3037::ac43:c17c2026-07-13 → 2026-07-19 · 3 obs

○ 2026-03-31 13:36:34
● 2026-07-13 20:32:12
● 2026-07-19 14:21:08

○CNAMEcs.ename.net2015-06-19 → 2019-04-23 · 7 obs

● 2015-06-19 08:05:02
● 2016-01-23 12:56:34
○ 2016-04-18 23:34:30
○ 2017-01-10 06:36:12
● 2019-04-23 05:12:02
○ 2026-03-31 13:36:34
○ 2026-07-19 14:21:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	b.dns.cn, d.dns.cn, a.dns.cn, c.dns.cn...	-
ustrong.cn	violet.ns.cloudflare.com, houston.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.237

NS records: violet.ns.cloudflare.com, houston.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ustrong.cn (unsigned zone)

⏱️ Timing

Total: 303ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.193.124, 104.21.57.232`
AAAA	2	`2606:4700:3037::ac43:c17c, 2606:4700:3033::6815:39e8`
NS	2	`houston.ns.cloudflare.com, violet.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`houston.ns.cloudflare.com dns.cloudflare`

Analysis

IP Addresses

ustrong.cn directs to four IP numbers, which are 104.21.57.232, 172.67.193.124, 2606:4700:3033::6815:39e8 and 2606:4700:3037::ac43:c17c.

sobrarte.com.br, luckyvn.com, www.dewatergroep.be.cdn.cloudflare.net and two other host names share IP numbers with ustrong.cn.

Name Servers

ustrong.cn is delegated to two name servers: houston.ns.cloudflare.com and violet.ns.cloudflare.com.

ustrong.cn uses the same name servers as several other domains — among them reliablebiz.cn, xbdu.cn, uayd.cn and two more.

There is at least partial name server overlap between ustrong.cn and other domains — shopreaper.com, tadalafilremedy.com, lookfantastic.online and two more among them.

These name servers are routinely deployed together with the name servers reese.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

houston.ns.cloudflare.com resolves to 108.162.195.52, 162.159.44.52, 172.64.35.52 and 3 other IP addresses.

violet.ns.cloudflare.com resolves to 108.162.192.237, 172.64.32.237, 173.245.58.237 and 3 other IP addresses.

ustrong.cn - robtex.com

ustrong.cn

cn

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`ustrong.cn`

`cn`