smartuser.us - dns.ninja

`smartuser.us`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:17ee^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:d62a^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.23.238^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.214.42^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`bruce.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b4d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bruce.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c14d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`bruce.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:214d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`bruce.ns.cloudflare.com`
		A	108.162.193.77^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bruce.ns.cloudflare.com`
		A	172.64.33.77^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bruce.ns.cloudflare.com`
		A	173.245.59.77^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bruce.ns.cloudflare.com`
NS	`maria.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ac0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`maria.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0c0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`maria.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20c0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`maria.ns.cloudflare.com`
		A	108.162.192.192^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`maria.ns.cloudflare.com`
		A	172.64.32.192^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`maria.ns.cloudflare.com`
		A	173.245.58.192^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`maria.ns.cloudflare.com`
MX	`mxbiz1.qq.com` ⭐
MX	`mxbiz2.qq.com`⁽¹⁰⁾
TXT	`v=spf1 include:spf.mail.qq.com ~all`
TXT	`zoho-verification=zb31875198.zmverify.zoho.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.23.238, 172.67.214.42
		IPv6 hints	2606:4700:3032::6815:17ee, 2606:4700:3037::ac43:d62a
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=24, name=cloudflare-ech.com
SOA	`bruce.ns.cloudflare.com`dns@cloudflare.com serial=2407413576

`us`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.cctld.us` ⭐
	NS	`b.cctld.us`
	NS	`f.cctld.us`
	NS	`k.cctld.us`
	NS	`m.cctld.us`
	NS	`n.cctld.us`
	NS	`w.cctld.us`
	NS	`x.cctld.us`
	NS	`y.cctld.us`
	SOA	`a.cctld.us`admin@tldns.godaddy serial=1783772054

Same first word

smartuser.org

smartuser.eu

smartuser.ru

smartuser.com.vn

smartuser.in

smartuser.io

smartuser.com.br

smartuser.net

smartuser.com.au

smartuser.de

smartuser.co.uk

smartuser.com

smartuser.us

Similar names

DNS History

19 records (8 active, 11 former)

●NSbruce.ns.cloudflare.com2017-03-16 → 2026-07-11 · 2 obs

● 2017-03-16 14:36:54
● 2026-07-11 12:44:10

●NSmaria.ns.cloudflare.com2017-03-16 → 2026-07-11 · 2 obs

● 2017-03-16 14:36:54
● 2026-07-11 12:44:10

●MXmxbiz1.qq.com2017-03-16 → 2026-07-11 · 2 obs

● 2017-03-16 14:36:54
● 2026-07-11 12:44:10

●MXmxbiz2.qq.com2017-03-16 → 2026-07-11 · 2 obs

● 2017-03-16 14:36:54
● 2026-07-11 12:44:10

●A104.21.23.2382026-02-17 → 2026-07-11 · 9 obs

○ 2020-01-17 01:01:08
● 2026-02-17 06:52:36
● 2026-04-14 21:09:46
○ 2026-04-30 08:06:44
● 2026-05-31 05:29:42
● 2026-06-11 15:28:08
○ 2026-06-28 20:40:38
● 2026-07-11 12:44:08
● 2026-07-11 12:44:10

○A104.31.70.462017-03-16 → 2020-01-17 · 4 obs

● 2017-03-16 14:36:54
● 2020-01-17 01:01:08
○ 2026-02-17 06:52:36
○ 2026-07-11 12:44:10

○A104.31.71.462017-03-16 → 2020-01-17 · 4 obs

● 2017-03-16 14:36:54
● 2020-01-17 01:01:08
○ 2026-02-17 06:52:36
○ 2026-07-11 12:44:10

●A172.67.214.422026-02-17 → 2026-07-11 · 9 obs

○A188.114.96.02026-04-30 → 2026-06-28 · 7 obs

○ 2026-04-14 21:09:46
● 2026-04-30 08:06:44
○ 2026-05-31 05:29:42
○ 2026-06-11 15:28:08
● 2026-06-28 20:40:38
○ 2026-07-11 12:44:08
○ 2026-07-11 12:44:10

○A188.114.97.02026-04-30 → 2026-06-28 · 7 obs

○ 2026-04-14 21:09:46
● 2026-04-30 08:06:44
○ 2026-05-31 05:29:42
○ 2026-06-11 15:28:08
● 2026-06-28 20:40:38
○ 2026-07-11 12:44:08
○ 2026-07-11 12:44:10

○A2400:cb00:2048:1::681f:462e2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 14:36:54
○ 2020-01-17 01:01:08
○ 2026-07-11 12:44:10

○A2400:cb00:2048:1::681f:472e2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 14:36:54
○ 2020-01-17 01:01:08
○ 2026-07-11 12:44:10

○A2606:4700:3031::681f:462e2020-01-17 → 2020-01-17 · 4 obs

○ 2017-03-16 14:36:54
● 2020-01-17 01:01:08
○ 2026-02-17 06:52:36
○ 2026-07-11 12:44:10

○A2606:4700:3031::ac43:d62a2026-02-17 → 2026-06-11 · 8 obs

○ 2020-01-17 01:01:08
● 2026-02-17 06:52:36
● 2026-04-14 21:09:46
○ 2026-04-30 08:06:44
● 2026-05-31 05:29:42
● 2026-06-11 15:28:08
○ 2026-06-28 20:40:38
○ 2026-07-11 12:44:10

●A2606:4700:3032::6815:17ee2026-02-17 → 2026-07-11 · 9 obs

○A2606:4700:3036::681f:472e2020-01-17 → 2020-01-17 · 4 obs

○ 2017-03-16 14:36:54
● 2020-01-17 01:01:08
○ 2026-02-17 06:52:36
○ 2026-07-11 12:44:10

●A2606:4700:3037::ac43:d62a2026-07-11 → 2026-07-11 · 3 obs

○ 2026-06-28 20:40:38
● 2026-07-11 12:44:08
● 2026-07-11 12:44:10

○A2a06:98c1:3120::2026-04-30 → 2026-06-28 · 7 obs

○ 2026-04-14 21:09:46
● 2026-04-30 08:06:44
○ 2026-05-31 05:29:42
○ 2026-06-11 15:28:08
● 2026-06-28 20:40:38
○ 2026-07-11 12:44:08
○ 2026-07-11 12:44:10

○A2a06:98c1:3121::2026-04-30 → 2026-06-28 · 7 obs

○ 2026-04-14 21:09:46
● 2026-04-30 08:06:44
○ 2026-05-31 05:29:42
○ 2026-06-11 15:28:08
● 2026-06-28 20:40:38
○ 2026-07-11 12:44:08
○ 2026-07-11 12:44:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	b.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us...	-
smartuser.us	maria.ns.cloudflare.com, bruce.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.77

NS records: maria.ns.cloudflare.com, bruce.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for smartuser.us (unsigned zone)

⏱️ Timing

Total: 522ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.214.42, 104.21.23.238`
AAAA	2	`2606:4700:3037::ac43:d62a, 2606:4700:3032::6815:17ee`
NS	2	`bruce.ns.cloudflare.com, maria.ns.cloudflare.com`
MX	2	`mxbiz2.qq.com (pri: 10), mxbiz1.qq.com (pri: 5)`
TXT	2	`v=spf1 include:spf.mail.qq.com ~all, zoho-verification=zb31875198.zmverify.zo`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`bruce.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

smartuser.us has four IP addresses: 104.21.23.238, 172.67.214.42, 2606:4700:3032::6815:17ee and 2606:4700:3037::ac43:d62a.

Two other host names, along with fsjt-gov.com, fpaladar.com.br and sparknetsynergy.digital, also share IP numbers with smartuser.us.

Name Servers

DNS delegation for smartuser.us points to two name servers: bruce.ns.cloudflare.com and maria.ns.cloudflare.com.

smartuser.us shares its NS records with other domains, for example bpbay.com, blogshoot.com, vikzon.com and two others.

smartuser.us has at least partial name server overlap with other domains, such as pstna.com, sportunacasino.eu, luieruitslag.com and two others.

It is common to see these name servers used together with name servers isabel.ns.cloudflare.com and bart.ns.cloudflare.com.

DNS names with 6 IP addresses:

bruce.ns.cloudflare.com has IP addresses 108.162.193.77, 172.64.33.77 and 173.245.59.77, plus 3 other.

maria.ns.cloudflare.com has IP addresses 108.162.192.192, 172.64.32.192 and 173.245.58.192, plus 3 other.

Mail Servers

smartuser.us is served by two mail servers, mxbiz1.qq.com and mxbiz2.qq.com.

Among the domains sharing a mail server setup with smartuser.us are cg1993.com, zmit.cn, szjuhang.com and two others.

At least some of smartuser.us's mail servers are shared with other domains, among them cad2688.com, tth5.cn, cngc.cn and saasqiye.com.