classroom66.com - robtex.com

classroom66.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:ca8b🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::6815:3cef🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.60.239Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.202.139🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSsara.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a90🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsara.ns.cloudflare.com
A2803:f800:50::6ca2:c090🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsara.ns.cloudflare.com
A2a06:98c1:50::ac40:2090🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsara.ns.cloudflare.com
A108.162.192.144🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsara.ns.cloudflare.com
A172.64.32.144🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsara.ns.cloudflare.com
A173.245.58.144🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsara.ns.cloudflare.com
NSvern.ns.cloudflare.com
A2606:4700:58::adf5:3bf3🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvern.ns.cloudflare.com
A2803:f800:50::6ca2:c1f3🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRvern.ns.cloudflare.com
A2a06:98c1:50::ac40:21f3🇺🇸 Cloudflare2a06:98c1:50::/45
PTRvern.ns.cloudflare.com
A108.162.193.243🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvern.ns.cloudflare.com
A172.64.33.243🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvern.ns.cloudflare.com
A173.245.59.243🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvern.ns.cloudflare.com
MXmail.classroom66.com ⭐
TXTv=spf1 a mx ip4:109.236.84.155 ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.60.239, 172.67.202.139
IPv62606:4700:3030::ac43:ca8b, 2606:4700:3033::6815:3cef
SOAsara.ns.cloudflare.comdns@cloudflare.com serial=2400027946

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1774711657
📈 Tranco rank: #83,043

Same first word

classroom66.com

DNS History

7 records (7 active, 0 former)

NSsara.ns.cloudflare.comvern.ns.cloudflare.comMXmail.classroom66.comA104.21.60.239172.67.202.1392606:4700:3030::ac43:ca8b2606:4700:3033::6815:3cef
●NSsara.ns.cloudflare.com2026-03-04 → 2026-03-28 · 2 obs
● 2026-03-04 11:50:26
● 2026-03-28 15:52:32
●NSvern.ns.cloudflare.com2026-03-04 → 2026-03-28 · 2 obs
● 2026-03-04 11:50:26
● 2026-03-28 15:52:32
●MXmail.classroom66.com2026-03-04 → 2026-03-28 · 2 obs
● 2026-03-04 11:50:26
● 2026-03-28 15:52:32
●A104.21.60.2392026-03-04 → 2026-03-28 · 2 obs
● 2026-03-04 11:50:26
● 2026-03-28 15:52:32
●A172.67.202.1392026-03-04 → 2026-03-28 · 2 obs
● 2026-03-04 11:50:26
● 2026-03-28 15:52:32
●A2606:4700:3030::ac43:ca8b2026-03-04 → 2026-03-28 · 2 obs
● 2026-03-04 11:50:26
● 2026-03-28 15:52:32
●A2606:4700:3033::6815:3cef2026-03-04 → 2026-03-28 · 2 obs
● 2026-03-04 11:50:26
● 2026-03-28 15:52:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
classroom66.comsara.ns.cloudflare.com, vern.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.144

NS records: sara.ns.cloudflare.com, vern.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classroom66.com (unsigned zone)

⏱️ Timing

Total: 112ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.202.139, 104.21.60.239
AAAA22606:4700:3033::6815:3cef, 2606:4700:3030::ac43:ca8b
NS2sara.ns.cloudflare.com, vern.ns.cloudflare.com
MX1mail.classroom66.com (pri: 10)
TXT1v=spf1 a mx ip4:109.236.84.155 ~all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1sara.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (sara.ns.cloudflare.com, sara.ns.cloudflare.com, sara.ns.cloudflare.com...)

Analysis

IP Addresses

classroom66.com refers to four IP numbers: 2606:4700:3030::ac43:ca8b, 2606:4700:3033::6815:3cef, 104.21.60.239 and 172.67.202.139.

Other host names, for instance www.myld.pl, wrestlingbiographies.com, travelaholics.biz, temptationwithin.com and visionslots247.com share IP numbers with classroom66.com.

Name Servers

classroom66.com's delegation uses two name servers: sara.ns.cloudflare.com and vern.ns.cloudflare.com.

classroom66.com uses the same name server setup as other domains, such as insureranch.com, investingfuel.com, computionary.com, perfumespararegalo.com and uimadura.ac.id.

classroom66.com at least partially shares name servers with other domains, including peinard.fr, cidadejunior.com, verse.codes, showtube.co and am9344.com.

These name servers are commonly used with carter.ns.cloudflare.com.

Host names with six IP numbers:

sara.ns.cloudflare.com points to 2606:4700:50::adf5:3a90, 2803:f800:50::6ca2:c090, 2a06:98c1:50::ac40:2090, 108.162.192.144, 172.64.32.144 and 173.245.58.144.

vern.ns.cloudflare.com points to 2606:4700:58::adf5:3bf3, 2803:f800:50::6ca2:c1f3, 2a06:98c1:50::ac40:21f3, 108.162.193.243, 172.64.33.243 and 173.245.59.243.

Mail Servers

A single mail server handles classroom66.com, mail.classroom66.com.