curious-classroom.com - robtex.com

curious-classroom.com

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:4daf🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3031::ac43:d29e🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.77.175Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.210.158🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdemi.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a5f🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdemi.ns.cloudflare.com
A2803:f800:50::6ca2:c05f🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdemi.ns.cloudflare.com
A2a06:98c1:50::ac40:205f🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdemi.ns.cloudflare.com
A108.162.192.95🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdemi.ns.cloudflare.com
A172.64.32.95🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdemi.ns.cloudflare.com
A173.245.58.95🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdemi.ns.cloudflare.com
NSyichun.ns.cloudflare.com
A2606:4700:58::adf5:3bf8🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRyichun.ns.cloudflare.com
A2803:f800:50::6ca2:c1f8🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRyichun.ns.cloudflare.com
A2a06:98c1:50::ac40:21f8🇺🇸 Cloudflare2a06:98c1:50::/45
PTRyichun.ns.cloudflare.com
A108.162.193.248🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRyichun.ns.cloudflare.com
A172.64.33.248🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRyichun.ns.cloudflare.com
A173.245.59.248🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRyichun.ns.cloudflare.com
MXaspmx.l.google.com ⭐
A2a00:1450:4009:c19::1a🇬🇧 Google2a00:1450:4009::/48
PTRyulhrp-in-f26.1e100.net
A192.178.223.26🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f26.1e100.net
MXalt1.aspmx.l.google.com(5)
A2607:f8b0:4023:2801::1b🇺🇸 Google2607:f8b0::/32
PTRlcausi-in-f27.1e100.net
A192.178.128.27🇺🇸 Google192.178.128.0/24
PTRlcausi-in-f27.1e100.net
MXalt2.aspmx.l.google.com(5)
A2607:f8b0:4023:1015::1a🇺🇸 Google2607:f8b0::/32
PTRyudfwta-in-f26.1e100.net
A172.253.135.26🇺🇸 Google172.253.135.0/24
PTRyudfwta-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1a🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f26.1e100.net
A192.178.223.26🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2607:f8b0:4003:c4a::1b🇺🇸 Google2607:f8b0:4003::/48
PTRyutulth-in-f27.1e100.net
A142.251.96.26🇺🇸 Google142.250.0.0/15
PTRyutulth-in-f26.1e100.net
TXTgoogle-site-verification=DYWvfp-w2cP18K2rI2ydvG2EavROc_LtqwY9ywMOD0E
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.77.175, 172.67.210.158
IPv62606:4700:3030::6815:4daf, 2606:4700:3031::ac43:d29e
SOAdemi.ns.cloudflare.comdns@cloudflare.com serial=2399435990

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=1775090282

Same first word

curious-classroom.com

DNS History

16 records (11 active, 5 former)

2020202120222023202420252026NSdemi.ns.cloudflare.comyichun.ns.cloudflare.comns1.wordpress.comns2.wordpress.comns3.wordpress.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comA104.21.77.175172.67.210.1582606:4700:3030::6815:4daf2606:4700:3031::ac43:d29e192.0.78.24192.0.78.25
●NSdemi.ns.cloudflare.com2026-03-20 → 2026-04-02 · 3 obs
○ 2019-12-17 17:15:14
● 2026-03-20 11:17:28
● 2026-04-02 00:48:24
○NSns1.wordpress.com2019-12-17 → 2019-12-17 · 3 obs
● 2019-12-17 17:15:14
○ 2026-03-20 11:17:28
○ 2026-04-02 00:48:24
○NSns2.wordpress.com2019-12-17 → 2019-12-17 · 3 obs
● 2019-12-17 17:15:14
○ 2026-03-20 11:17:28
○ 2026-04-02 00:48:24
○NSns3.wordpress.com2019-12-17 → 2019-12-17 · 3 obs
● 2019-12-17 17:15:14
○ 2026-03-20 11:17:28
○ 2026-04-02 00:48:24
●NSyichun.ns.cloudflare.com2026-03-20 → 2026-04-02 · 3 obs
○ 2019-12-17 17:15:14
● 2026-03-20 11:17:28
● 2026-04-02 00:48:24
●MXalt1.aspmx.l.google.com2026-03-20 → 2026-04-02 · 2 obs
● 2026-03-20 11:17:28
● 2026-04-02 00:48:24
●MXalt2.aspmx.l.google.com2026-03-20 → 2026-04-02 · 2 obs
● 2026-03-20 11:17:28
● 2026-04-02 00:48:24
●MXalt3.aspmx.l.google.com2026-03-20 → 2026-04-02 · 2 obs
● 2026-03-20 11:17:28
● 2026-04-02 00:48:24
●MXalt4.aspmx.l.google.com2026-03-20 → 2026-04-02 · 2 obs
● 2026-03-20 11:17:28
● 2026-04-02 00:48:24
●MXaspmx.l.google.com2026-03-20 → 2026-04-02 · 2 obs
● 2026-03-20 11:17:28
● 2026-04-02 00:48:24
●A104.21.77.1752026-03-20 → 2026-04-02 · 3 obs
○ 2019-12-17 17:15:14
● 2026-03-20 11:17:28
● 2026-04-02 00:48:24
●A172.67.210.1582026-03-20 → 2026-04-02 · 3 obs
○ 2019-12-17 17:15:14
● 2026-03-20 11:17:28
● 2026-04-02 00:48:24
○A192.0.78.242019-12-17 → 2019-12-17 · 3 obs
● 2019-12-17 17:15:14
○ 2026-03-20 11:17:28
○ 2026-04-02 00:48:24
○A192.0.78.252019-12-17 → 2019-12-17 · 3 obs
● 2019-12-17 17:15:14
○ 2026-03-20 11:17:28
○ 2026-04-02 00:48:24
●A2606:4700:3030::6815:4daf2026-03-20 → 2026-04-02 · 3 obs
○ 2019-12-17 17:15:14
● 2026-03-20 11:17:28
● 2026-04-02 00:48:24
●A2606:4700:3031::ac43:d29e2026-03-20 → 2026-04-02 · 3 obs
○ 2019-12-17 17:15:14
● 2026-03-20 11:17:28
● 2026-04-02 00:48:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, k.gtld-servers.net, j.gtld-servers.net, i.gtld-servers.net...-
curious-classroom.comdemi.ns.cloudflare.com, yichun.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.248

NS records: demi.ns.cloudflare.com, yichun.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for curious-classroom.com (unsigned zone)

⏱️ Timing

Total: 232ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.77.175, 172.67.210.158
AAAA22606:4700:3030::6815:4daf, 2606:4700:3031::ac43:d29e
NS2demi.ns.cloudflare.com, yichun.ns.cloudflare.com
MX5aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
TXT1google-site-verification=DYWvfp-w2cP18K2
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1demi.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

curious-classroom.com resolves to four IPs: 2606:4700:3030::6815:4daf, 2606:4700:3031::ac43:d29e, 104.21.77.175 and 172.67.210.158.

Other host names such as www.klummbros.com, www.4rr4.com, ben.ai, themeatpackersnyc.com and miedziany.net share IP numbers with curious-classroom.com.

Name Servers

curious-classroom.com is delegated to two name servers: demi.ns.cloudflare.com and yichun.ns.cloudflare.com.

curious-classroom.com uses the same name server setup as other domains, including soudesign.com.br, javguru.click, revive.md, acamarket.com and shiou.page.

At least part of the name servers for curious-classroom.com are shared with other domains, for instance ivmcloud.com.br, edovpn.com, orpyxis.com, pg999st01.vip and palatin.at.

These name servers are commonly used alongside anastasia.ns.cloudflare.com and cory.ns.cloudflare.com.

Host names with six IP numbers:

demi.ns.cloudflare.com points to: 2606:4700:50::adf5:3a5f, 2803:f800:50::6ca2:c05f, 2a06:98c1:50::ac40:205f, 108.162.192.95, 172.64.32.95 and 173.245.58.95.

yichun.ns.cloudflare.com points to: 2606:4700:58::adf5:3bf8, 2803:f800:50::6ca2:c1f8, 2a06:98c1:50::ac40:21f8, 108.162.193.248, 172.64.33.248 and 173.245.59.248.

Mail Servers

curious-classroom.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

curious-classroom.com shares at least some mail servers with other domains, for example ianmackelvie.com, ns500742.ns500754.ns500671.ns500742.ns500688.ns500704.ns500704.ns500678.ns500688.ns500688.ns500705.ns500671.ns500671.ns500649.ns500291.ns500131.lustychickser.com, roobley.com, eddisons.us and ns500742.ns500671.ns500731.ns500731.ns500704.ns500671.ns500671.ns500678.ns500678.ns500666.ns500291.ns500131.lustychickser.com.

These mail servers are commonly used alongside aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.

Host names with two IP numbers

aspmx.l.google.com points to 2a00:1450:4009:c19::1a and 192.178.223.26

alt1.aspmx.l.google.com points to 2607:f8b0:4023:2801::1b and 192.178.128.27

alt2.aspmx.l.google.com points to 2607:f8b0:4023:1015::1a and 172.253.135.26

alt3.aspmx.l.google.com points to 2a00:1450:4009:c0f::1a and 192.178.223.26

alt4.aspmx.l.google.com points to 2607:f8b0:4003:c4a::1b and 142.251.96.26

Host names that point to 192.178.223.26: aspmx.l.google.com and alt3.aspmx.l.google.com

Note: 192.178.223.26 is used by both aspmx.l.google.com and alt3.aspmx.l.google.com