`checkedtakemyclassonline.us.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:1be3^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:a9cb^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.27.227^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.169.203^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ada.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a36^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c036^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ada.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2036^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ada.ns.cloudflare.com`
		A	108.162.192.54^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
		A	172.64.32.54^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
		A	173.245.58.54^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
NS	`scott.ns.cloudflare.com`
		A	2606:4700:58::adf5:3be6^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`scott.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1e6^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`scott.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21e6^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`scott.ns.cloudflare.com`
		A	108.162.193.230^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`scott.ns.cloudflare.com`
		A	172.64.33.230^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`scott.ns.cloudflare.com`
		A	173.245.59.230^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`scott.ns.cloudflare.com`
MX	`checkedtakemyclassonline-us-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db3pr0202cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::1^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db7pr03cu00401.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::1^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as9pr07cu00301.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::2^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am0pr83cu00402.inbound.protection.outlook.com`
		A	52.101.68.0^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db3pr0202cu00100.inbound.protection.outlook.com`
		A	52.101.68.15^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db6pr03cu00107.inbound.protection.outlook.com`
		A	52.101.73.4^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am0pr83cu00404.inbound.protection.outlook.com`
		A	52.101.73.8^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am0pr04cu00500.inbound.protection.outlook.com`
TXT	`MS=ms90671053`
TXT	`v=spf1 include:spf.protection.outlook.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.27.227, 172.67.169.203
		IPv6 hints	2606:4700:3033::6815:1be3, 2606:4700:3036::ac43:a9cb
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=242, name=cloudflare-ech.com
SOA	`ada.ns.cloudflare.com`dns@cloudflare.com serial=2410778556

`us.com`

	DNSSEC	🔒 Signed (DS record present)
	A	54.153.56.183^{🇺🇸 Amazon54.153.0.0/17 EC2 SFO prefix}
	NS	`ns0.centralnic.net` ⭐
	NS	`ns1.centralnic.net`
	NS	`ns2.centralnic.net`
	NS	`ns3.centralnic.net`
	NS	`ns4.centralnic.net`
	MX	`mx-01.emailme.com` ⭐
	TXT	`v=spf1 mx -all`
	TXT	`google-site-verification=TQ9DQVGZ4sDKfEbBIAiflq7ZKjGuCOC_vEpwyw_XsW8`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=3000791120

rank #349 globally
rank #223 in the tld

us.com

us.comis a private domain registry operated by CentralNic (now Team Internet Group plc) that offers third-level registrations as an alternative to the official.usor.comextensions. Unlike the official.uscountry-code top-level domain, registrations underus.comare unrestricted and available to anyone globally.

Key facts

Owner / operator: CentralNic (Team Internet Group plc)
TLD:.com— gTLD
Primary purpose: Domain registry for third-level subdomains
Status: active

History

Year	Event
1995	The`us.com`registry is established to offer third-level domain registrations.
1996	CentralNic, the operator of the registry, is founded.
2023	CentralNic Group plc officially rebrands to Team Internet Group plc.

⚠️ On DNS blocklist: spam-tlds
WOT: SAFE (48/100)
📈 Tranco rank: #1,119

Same first word

checkedtakemyclassonline.us.com

DNS History

9 records (7 active, 2 former)

●NSada.ns.cloudflare.com2026-04-21 → 2026-08-06 · 2 obs

● 2026-04-21 03:19:22
● 2026-08-06 02:54:44

●NSscott.ns.cloudflare.com2026-04-21 → 2026-08-06 · 2 obs

● 2026-04-21 03:19:22
● 2026-08-06 02:54:44

●MXcheckedtakemyclassonline-us-com.mail.protection.outlook.com2026-07-26 → 2026-08-06 · 2 obs

● 2026-07-26 18:58:16
● 2026-08-06 02:54:44

●A104.21.27.2272026-04-21 → 2026-08-06 · 2 obs

● 2026-04-21 03:19:22
● 2026-08-06 02:54:44

●A172.67.169.2032026-04-21 → 2026-08-06 · 2 obs

● 2026-04-21 03:19:22
● 2026-08-06 02:54:44

○A2606:4700:3030::6815:1be32026-04-21 → 2026-04-21 · 3 obs

● 2026-04-21 03:19:22
○ 2026-07-01 18:34:32
○ 2026-08-06 02:54:44

○A2606:4700:3030::ac43:a9cb2026-04-21 → 2026-04-21 · 3 obs

● 2026-04-21 03:19:22
○ 2026-07-01 18:34:32
○ 2026-08-06 02:54:44

●A2606:4700:3033::6815:1be32026-07-01 → 2026-08-06 · 3 obs

○ 2026-04-21 03:19:22
● 2026-07-01 18:34:32
● 2026-08-06 02:54:44

●A2606:4700:3036::ac43:a9cb2026-07-01 → 2026-08-06 · 3 obs

○ 2026-04-21 03:19:22
● 2026-07-01 18:34:32
● 2026-08-06 02:54:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, i.gtld-servers.net, g.gtld-servers.net, a.gtld-servers.net...	-
us.com	ns1.centralnic.net, ns2.centralnic.net, ns3.centralnic.net, ns4.centralnic.net	-
checkedtakemyclassonline.us.com	scott.ns.cloudflare.com, ada.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.230

NS records: scott.ns.cloudflare.com, ada.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for checkedtakemyclassonline.us.com (unsigned zone)

⏱️ Timing

Total: 544ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.169.203, 104.21.27.227`
AAAA	2	`2606:4700:3033::6815:1be3, 2606:4700:3036::ac43:a9cb`
NS	2	`ada.ns.cloudflare.com, scott.ns.cloudflare.com`
MX	1	`checkedtakemyclassonline-us-com.mail.pro`
TXT	2	`MS=ms90671053, v=spf1 include:spf.protection.outlook.co`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ada.ns.cloudflare.com dns.cloudflare.com`

Analysis

IP Addresses

checkedtakemyclassonline.us.com has four IP addresses: 104.21.27.227, 172.67.169.203, 2606:4700:3033::6815:1be3 and 2606:4700:3036::ac43:a9cb.

Among the host names that share IP numbers with checkedtakemyclassonline.us.com are jssail.com, lawtw.com, pscontacts.com and two others.

Name Servers

Two name servers handle the delegation for checkedtakemyclassonline.us.com: ada.ns.cloudflare.com and scott.ns.cloudflare.com.

checkedtakemyclassonline.us.com has the same name server delegation as a number of other domains, such as armroofing.com, geniusclip.eu.com, tudthrone.cn.com and two more.

checkedtakemyclassonline.us.com has at least partial name server overlap with other domains, such as israeltravel.tours, brussels-charleroi-airport.com, biosmile.us and two others.

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

Host names resolving to 6 IP numbers:

ada.ns.cloudflare.com resolves to 108.162.192.54, 172.64.32.54 and 173.245.58.54 among others, with 3 other IP addresses in total.

scott.ns.cloudflare.com resolves to 108.162.193.230, 172.64.33.230 and 173.245.59.230 among others, with 3 other IP addresses in total.

Mail Servers

checkedtakemyclassonline.us.com routes its mail through a single mail server, checkedtakemyclassonline-us-com.mail.protection.outlook.com.

checkedtakemyclassonline-us-com.mail.protection.outlook.com directs to 8 IP numbers, including 52.101.68.0, 52.101.68.15 and 52.101.73.4, along with 5 other.

checkedtakemyclassonline.us.com - robtex.com