www.classcentral.com - robtex.com

www.classcentral.com

DNSSEC⚠️ Not signed
A2606:4700:10::6814:1fe9🇺🇸 Cloudflare2606:4700:10::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:10::ac42:9b5f🇺🇸 Cloudflare2606:4700:10::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.20.31.233Cloudflare104.20.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.66.155.95🇺🇸 Cloudflare172.66.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.20.31.233, 172.66.155.95
IPv6 hints2606:4700:10::6814:1fe9, 2606:4700:10::ac42:9b5f

classcentral.com

DNSSEC⚠️ Not signed
A2606:4700:10::6814:1fe9🇺🇸 Cloudflare2606:4700:10::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:10::ac42:9b5f🇺🇸 Cloudflare2606:4700:10::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.20.31.233Cloudflare104.20.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.66.155.95🇺🇸 Cloudflare172.66.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSarely.ns.cloudflare.com ⭐
NScash.ns.cloudflare.com
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(5)
MXalt2.aspmx.l.google.com(5)
MXalt3.aspmx.l.google.com(10)
MXalt4.aspmx.l.google.com(10)
TXTahrefs-site-verification_66d70d81cc769a17be729ca86b4b78a154ce5bdf05a959a3e24f...
TXTgoogle-site-verification=B5tS98xLS8LWKgF0jvgFT1ZMVFKHu2x2Bm1dDUkfZok
TXTgoogle-site-verification=MVj1x00m2Sfy8hd2NKzae4A9vNUeb56LeY8lbrCFFMw
TXTgoogle-site-verification=nti5KS3pWsqPVSly62k9EXN_K_20_cnQL9dJ0l7HAh0
TXTprowly-verification=b4b5eac2db73d1bf8336e0c31c0ad569d48bca13aa333785f3fc205c9...
TXTv=spf1 include:_spf.google.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.20.31.233, 172.66.155.95
IPv6 hints2606:4700:10::6814:1fe9, 2606:4700:10::ac42:9b5f
SOAarely.ns.cloudflare.comdns@cloudflare.com serial=2409640016
rank #13135 globally
rank #6354 in the tld
📈 Tranco rank: #26,588

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DNS History

9 records (4 active, 5 former)

20162017201820192020202120222023202420252026NSns1.classcentral.comns2.classcentral.comMXmail.classcentral.comA104.20.31.233172.66.155.952606:4700:10::6814:1fe92606:4700:10::ac42:9b5f75.103.109.225CNAMEclasscentral.com
○NSns1.classcentral.com2015-10-29 → 2017-04-08 · 4 obs
● 2015-10-29 23:38:10
● 2017-04-08 12:18:58
○ 2026-04-01 17:21:14
○ 2026-08-07 06:08:14
○NSns2.classcentral.com2015-10-29 → 2017-04-08 · 4 obs
● 2015-10-29 23:38:10
● 2017-04-08 12:18:58
○ 2026-04-01 17:21:14
○ 2026-08-07 06:08:14
○MXmail.classcentral.com2015-10-29 → 2017-04-08 · 4 obs
● 2015-10-29 23:38:10
● 2017-04-08 12:18:58
○ 2026-04-01 17:21:14
○ 2026-08-07 06:08:14
●A104.20.31.2332026-04-01 → 2026-08-07 · 3 obs
○ 2017-04-08 12:18:58
● 2026-04-01 17:21:14
● 2026-08-07 06:08:14
●A172.66.155.952026-04-01 → 2026-08-07 · 3 obs
○ 2017-04-08 12:18:58
● 2026-04-01 17:21:14
● 2026-08-07 06:08:14
●A2606:4700:10::6814:1fe92026-04-01 → 2026-08-07 · 3 obs
○ 2017-04-08 12:18:58
● 2026-04-01 17:21:14
● 2026-08-07 06:08:14
●A2606:4700:10::ac42:9b5f2026-04-01 → 2026-08-07 · 3 obs
○ 2017-04-08 12:18:58
● 2026-04-01 17:21:14
● 2026-08-07 06:08:14
○A75.103.109.2252015-06-14 → 2017-04-08 · 4 obs
● 2015-06-14 14:30:26
● 2017-04-08 12:18:58
○ 2026-04-01 17:21:14
○ 2026-08-07 06:08:14
○CNAMEclasscentral.com2015-06-14 → 2017-04-08 · 4 obs
● 2015-06-14 14:30:26
● 2017-04-08 12:18:58
○ 2026-04-01 17:21:14
○ 2026-08-07 06:08:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comi.gtld-servers.net, k.gtld-servers.net, a.gtld-servers.net, c.gtld-servers.net...-
classcentral.comcash.ns.cloudflare.com, arely.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.164

NS records: cash.ns.cloudflare.com, arely.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classcentral.com (unsigned zone)

⏱️ Timing

Total: 164ms | Queries: -

📄 Records

TypeCountSample Data
A2172.66.155.95, 104.20.31.233
AAAA22606:4700:10::6814:1fe9, 2606:4700:10::ac42:9b5f
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

www.classcentral.com has four IP addresses: 104.20.31.233, 172.66.155.95, 2606:4700:10::6814:1fe9 and 2606:4700:10::ac42:9b5f.

Among the host names that share IP numbers with www.classcentral.com are miestogijos.lt, codetwo.de, cygnusscan-dnfbp.crowe.ae.cdn.cloudflare.net and two others.