🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`stdtest.us`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:c7ac^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:15b2^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.21.178^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.199.172^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`carl.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b6a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carl.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c16a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`carl.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:216a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`carl.ns.cloudflare.com`
		A	108.162.193.106^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carl.ns.cloudflare.com`
		A	172.64.33.106^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carl.ns.cloudflare.com`
		A	173.245.59.106^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carl.ns.cloudflare.com`
NS	`ullis.ns.cloudflare.com`
		A	2606:4700:50::a29f:267f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ullis.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c27f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ullis.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:227f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ullis.ns.cloudflare.com`
		A	108.162.194.127^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ullis.ns.cloudflare.com`
		A	162.159.38.127^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ullis.ns.cloudflare.com`
		A	172.64.34.127^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ullis.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.21.178, 172.67.199.172
		IPv6 hints	2606:4700:3032::ac43:c7ac, 2606:4700:3037::6815:15b2
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=252, name=cloudflare-ech.com
SOA	`carl.ns.cloudflare.com`dns@cloudflare.com serial=2409049209

`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=1787501461

Same first word

stdtest.in

stdtest.ie

stdtest.com

stdtest.net

stdtest.org

stdtest.de

stdtest.us

stdtest.sg

Similar names

tsdtest.com

dtstest.nl

tdstest.com

dtstest.shop

testtds.com

Previous names

stddating.us

stdemetriosjc.us

stdenis.us

stdesign.us

stdev.us

stdgroup.us

stdimitrieeaston.us

stdio.us

stdlabs.us

stdland.us

stdmatch.us

stdom.us

stdominic.us

stdp.us

stdr.us

stds.us

stdsm.us

Next names

stdtesting.us

stdtestingoakland.us

stdunstans.us

stdw.us

stdy.us

ste-e.us

ste01.us

stead.us

steadfast.us

steadfastcalling.us

steadfastco.us

steadfastcompanies.us

steadfastglobal.us

steadfastgroup.us

steadicam.us

DNS History

20 records (6 active, 14 former)

●NScarl.ns.cloudflare.com2026-08-18 → 2026-08-23 · 3 obs

○ 2019-01-16 02:20:22
● 2026-08-18 10:34:48
● 2026-08-23 16:32:10

○NSns15.domaincontrol.com2015-06-19 → 2019-01-16 · 4 obs

● 2015-06-19 01:42:46
● 2019-01-16 02:20:22
○ 2026-08-18 10:34:48
○ 2026-08-23 16:32:10

○NSns16.domaincontrol.com2015-06-19 → 2019-01-16 · 4 obs

● 2015-06-19 01:42:46
● 2019-01-16 02:20:22
○ 2026-08-18 10:34:48
○ 2026-08-23 16:32:10

●NSullis.ns.cloudflare.com2026-08-18 → 2026-08-23 · 3 obs

○ 2019-01-16 02:20:22
● 2026-08-18 10:34:48
● 2026-08-23 16:32:10

○MXmailstore1.secureserver.net2015-06-19 → 2019-01-16 · 4 obs

● 2015-06-19 01:42:46
● 2019-01-16 02:20:22
○ 2026-08-18 10:34:48
○ 2026-08-23 16:32:10

○MXsmtp.secureserver.net2015-06-19 → 2019-01-16 · 4 obs

● 2015-06-19 01:42:46
● 2019-01-16 02:20:22
○ 2026-08-18 10:34:48
○ 2026-08-23 16:32:10

●A104.21.21.1782026-08-18 → 2026-08-23 · 3 obs

○ 2019-01-16 02:20:22
● 2026-08-18 10:34:48
● 2026-08-23 16:32:10

●A172.67.199.1722026-08-18 → 2026-08-23 · 3 obs

○ 2019-01-16 02:20:22
● 2026-08-18 10:34:48
● 2026-08-23 16:32:10

○A184.168.221.132019-01-16 → 2019-01-16 · 4 obs

○ 2017-01-28 18:04:36
● 2019-01-16 02:20:22
○ 2026-08-18 10:34:48
○ 2026-08-23 16:32:10

○A184.168.221.22019-01-16 → 2019-01-16 · 4 obs

○ 2017-01-28 18:04:36
● 2019-01-16 02:20:22
○ 2026-08-18 10:34:48
○ 2026-08-23 16:32:10

○A184.168.221.272016-04-30 → 2017-01-28 · 5 obs

○ 2016-02-04 22:35:02
● 2016-04-30 06:51:36
● 2017-01-28 18:04:36
○ 2019-01-16 02:20:22
○ 2026-08-23 16:32:10

○A184.168.221.92019-01-16 → 2019-01-16 · 4 obs

○ 2017-01-28 18:04:36
● 2019-01-16 02:20:22
○ 2026-08-18 10:34:48
○ 2026-08-23 16:32:10

●A2606:4700:3032::ac43:c7ac2026-08-18 → 2026-08-23 · 3 obs

○ 2019-01-16 02:20:22
● 2026-08-18 10:34:48
● 2026-08-23 16:32:10

●A2606:4700:3037::6815:15b22026-08-18 → 2026-08-23 · 3 obs

○ 2019-01-16 02:20:22
● 2026-08-18 10:34:48
● 2026-08-23 16:32:10

○A50.63.202.142019-01-16 → 2019-01-16 · 4 obs

○ 2017-01-28 18:04:36
● 2019-01-16 02:20:22
○ 2026-08-18 10:34:48
○ 2026-08-23 16:32:10

○A50.63.202.192015-06-19 → 2019-01-16 · 6 obs

● 2015-06-19 01:42:46
● 2016-02-04 22:35:02
○ 2016-04-30 06:51:36
● 2019-01-16 02:20:22
○ 2026-08-18 10:34:48
○ 2026-08-23 16:32:10

○A50.63.202.222019-01-16 → 2019-01-16 · 4 obs

○ 2017-01-28 18:04:36
● 2019-01-16 02:20:22
○ 2026-08-18 10:34:48
○ 2026-08-23 16:32:10

○A50.63.202.282019-01-16 → 2019-01-16 · 4 obs

○ 2017-01-28 18:04:36
● 2019-01-16 02:20:22
○ 2026-08-18 10:34:48
○ 2026-08-23 16:32:10

○A50.63.202.72019-01-16 → 2019-01-16 · 4 obs

○ 2017-01-28 18:04:36
● 2019-01-16 02:20:22
○ 2026-08-18 10:34:48
○ 2026-08-23 16:32:10

○A50.63.202.92019-01-16 → 2019-01-16 · 4 obs

○ 2017-01-28 18:04:36
● 2019-01-16 02:20:22
○ 2026-08-18 10:34:48
○ 2026-08-23 16:32:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	b.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us...	16 records
stdtest.us	carl.ns.cloudflare.com, ullis.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.106

NS records: carl.ns.cloudflare.com, ullis.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stdtest.us (unsigned zone)

⏱️ Timing

Total: 1240ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.199.172, 104.21.21.178`
AAAA	2	`2606:4700:3032::ac43:c7ac, 2606:4700:3037::6815:15b2`
NS	2	`carl.ns.cloudflare.com, ullis.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`carl.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 16

In-bailiwick: 16 (b.cctld.us, b.cctld.us, f.cctld.us...)

Analysis

IP Addresses

stdtest.us directs to four IP numbers, which are 104.21.21.178, 172.67.199.172, 2606:4700:3032::ac43:c7ac and 2606:4700:3037::6815:15b2.

mail.calclerkofcourt.com, alexistyr.shop, mail.stepnet.top and two other host names share IP numbers with stdtest.us.

Name Servers

stdtest.us is served by two delegated name servers, carl.ns.cloudflare.com and ullis.ns.cloudflare.com.

stdtest.us uses the same name servers as several other domains — among them admin-f27.workers.dev, vanshvijay1016.workers.dev, doll.pt and two more.

At least some of stdtest.us's name servers are shared with other domains, for example newchurchwebsite.org, douyinsparkflow-setting-pages.pages.dev, azurialento.com and two more.

These name servers tend to be used in conjunction with the name servers teagan.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

carl.ns.cloudflare.com carries IP addresses 108.162.193.106, 172.64.33.106 and 173.245.59.106, with 3 other addresses beyond those.

ullis.ns.cloudflare.com carries IP addresses 108.162.194.127, 162.159.38.127 and 172.64.34.127, with 3 other addresses beyond those.

stdtest.us - robtex.com

stdtest.us

us

Same first word

Similar names

Previous names

Next names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`stdtest.us`

`us`