classroom6x.us.com - robtex.com
classroom6x.us.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::6815:4d04🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::ac43:cac3🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.77.4Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.202.195🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | jihoon.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::a29f:2ce9🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jihoon.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c3e9🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | jihoon.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:23e9🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | jihoon.ns.cloudflare.com | ||||||
| A | 108.162.195.233🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jihoon.ns.cloudflare.com | ||||||
| A | 162.159.44.233Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jihoon.ns.cloudflare.com | ||||||
| A | 172.64.35.233🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jihoon.ns.cloudflare.com | ||||||
| NS | liz.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3abd🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | liz.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0bd🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | liz.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20bd🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | liz.ns.cloudflare.com | ||||||
| A | 108.162.192.189🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | liz.ns.cloudflare.com | ||||||
| A | 172.64.32.189🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | liz.ns.cloudflare.com | ||||||
| A | 173.245.58.189🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | liz.ns.cloudflare.com | ||||||
| TXT | google-site-verification=A2tvpvK4UCLiADZGC6HUX5I7Tx3ZSfhRDVjCNSHuCXU | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.77.4, 172.67.202.195 | ||||||
| IPv6 hints | 2606:4700:3033::6815:4d04, 2606:4700:3035::ac43:cac3 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=227, name=cloudflare-ech.com | ||||||
| SOA | jihoon.ns.cloudflare.comdns@cloudflare.com serial=2398628732 | ||||||
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.nethostmaster@centralnic.net serial=3000750444 | ||||||
rank #205 in the tld
This domain "us.com" is a commercial domain name which could be used by any individual or organization primarily for commercial purposes. It uses a country code top-level domain (ccTLD) for the United States, but it is not restricted to use by entities in the United States. The specific use or owner of "us.com" depends on who has registered it.WOT: SAFE (48/100)
📈 Tranco rank: #1,078
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSjihoon.ns.cloudflare.com2026-04-23 → 2026-04-24 · 2 obs
● 2026-04-24 23:17:54
●NSliz.ns.cloudflare.com2026-04-23 → 2026-04-24 · 2 obs
● 2026-04-24 23:17:54
●A104.21.77.42026-04-23 → 2026-04-24 · 2 obs
● 2026-04-24 23:17:54
●A172.67.202.1952026-04-23 → 2026-04-24 · 2 obs
● 2026-04-24 23:17:54
●A2606:4700:3033::6815:4d042026-04-23 → 2026-04-24 · 2 obs
● 2026-04-24 23:17:54
●A2606:4700:3035::ac43:cac32026-04-23 → 2026-04-24 · 2 obs
● 2026-04-24 23:17:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | h.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net, k.gtld-servers.net... | - |
| us.com | ns1.centralnic.net, ns2.centralnic.net, ns3.centralnic.net, ns4.centralnic.net | - |
| classroom6x.us.com | liz.ns.cloudflare.com, jihoon.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.192.189
NS records: liz.ns.cloudflare.com, jihoon.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for classroom6x.us.com (unsigned zone)
⏱️ Timing
Total: 779ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.77.4, 172.67.202.195 |
| AAAA | 2 | 2606:4700:3033::6815:4d04, 2606:4700:3035::ac43:cac3 |
| NS | 2 | jihoon.ns.cloudflare.com, liz.ns.cloudflare.com |
| TXT | 1 | google-site-verification=A2tvpvK4UCLiADZ |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | jihoon.ns.cloudflare.com dns.cloudflare. |
Analysis
IP Addresses
classroom6x.us.com points to four IP numbers: 2606:4700:3033::6815:4d04, 2606:4700:3035::ac43:cac3, 104.21.77.4 and 172.67.202.195.
Other host names, for instance vkzd.cn, acpavingandmasonry.com, www.aseemamatrimony.in, www.ra.de and my.octatrading.net share IP numbers with classroom6x.us.com.
Name Servers
classroom6x.us.com's delegation is to two name servers jihoon.ns.cloudflare.com and liz.ns.cloudflare.com.
classroom6x.us.com shares the same name server configuration as other domains, such as porza.de, classroom6x.gg, zetcasino-de.net, 1v1lol.us.com and porza.nl.
classroom6x.us.com at least partially shares its name servers with other domains, for instance ripplexrp-events.com, ifsahane.com, amsterdambrightcity.nl, polyimg.com and corporateofficecenters.com.
these name servers are commonly used with the name servers dave.ns.cloudflare.com, alice.ns.cloudflare.com, desiree.ns.cloudflare.com, kareem.ns.cloudflare.com and guy.ns.cloudflare.com.
Host names with six IP numbers:
jihoon.ns.cloudflare.com points to: 2606:4700:58::a29f:2ce9, 2803:f800:50::6ca2:c3e9, 2a06:98c1:50::ac40:23e9, 108.162.195.233, 162.159.44.233 and 172.64.35.233.
liz.ns.cloudflare.com points to: 2606:4700:50::adf5:3abd, 2803:f800:50::6ca2:c0bd, 2a06:98c1:50::ac40:20bd, 108.162.192.189, 172.64.32.189 and 173.245.58.189.