classcentral.com - dns.ninja
classcentral.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1786351549 | ||||||
rank #6257 in the tld
📈 Tranco rank: #27,055
Subdomains
www.classcentral.com |
Same first word
classcentral.net |
classcentral.org |
classcentral.com |
Similar names
DNS History
15 records (11 active, 4 former)
●NSarely.ns.cloudflare.com2026-02-16 → 2026-08-10 · 3 obs
● 2026-02-16 07:34:54
● 2026-08-10 08:46:58
●NScash.ns.cloudflare.com2026-02-16 → 2026-08-10 · 3 obs
● 2026-02-16 07:34:54
● 2026-08-10 08:46:58
○NSns1.classcentral.com2015-07-03 → 2016-12-07 · 4 obs
● 2016-12-07 01:22:10
○ 2026-02-16 07:34:54
○ 2026-08-10 08:46:58
○NSns2.classcentral.com2015-07-03 → 2016-12-07 · 4 obs
● 2016-12-07 01:22:10
○ 2026-02-16 07:34:54
○ 2026-08-10 08:46:58
●MXalt1.aspmx.l.google.com2026-02-16 → 2026-08-10 · 3 obs
● 2026-02-16 07:34:54
● 2026-08-10 08:46:58
●MXalt2.aspmx.l.google.com2026-02-16 → 2026-08-10 · 3 obs
● 2026-02-16 07:34:54
● 2026-08-10 08:46:58
●MXalt3.aspmx.l.google.com2026-02-16 → 2026-08-10 · 3 obs
● 2026-02-16 07:34:54
● 2026-08-10 08:46:58
●MXalt4.aspmx.l.google.com2026-02-16 → 2026-08-10 · 3 obs
● 2026-02-16 07:34:54
● 2026-08-10 08:46:58
●MXaspmx.l.google.com2026-02-16 → 2026-08-10 · 3 obs
● 2026-02-16 07:34:54
● 2026-08-10 08:46:58
○MXmail.classcentral.com2015-07-03 → 2016-12-07 · 4 obs
● 2016-12-07 01:22:10
○ 2026-02-16 07:34:54
○ 2026-08-10 08:46:58
●A104.20.31.2332026-02-16 → 2026-08-10 · 3 obs
● 2026-02-16 07:34:54
● 2026-08-10 08:46:58
●A172.66.155.952026-02-16 → 2026-08-10 · 3 obs
● 2026-02-16 07:34:54
● 2026-08-10 08:46:58
●A2606:4700:10::6814:1fe92026-02-16 → 2026-08-10 · 3 obs
● 2026-02-16 07:34:54
● 2026-08-10 08:46:58
●A2606:4700:10::ac42:9b5f2026-02-16 → 2026-08-10 · 3 obs
● 2026-02-16 07:34:54
● 2026-08-10 08:46:58
○A75.103.109.2252015-07-03 → 2016-12-07 · 4 obs
● 2016-12-07 01:22:10
○ 2026-02-16 07:34:54
○ 2026-08-10 08:46:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, d.gtld-servers.net, m.gtld-servers.net, f.gtld-servers.net... | - |
| classcentral.com | cash.ns.cloudflare.com, arely.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.193.81
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: 179ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.66.155.95, 104.20.31.233 |
| AAAA | 2 | 2606:4700:10::6814:1fe9, 2606:4700:10::ac42:9b5f |
| NS | 2 | arely.ns.cloudflare.com, cash.ns.cloudflare.com |
| MX | 5 | aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)... |
| TXT | 6 | ahrefs-site-verification_66d70d81cc769a1, google-site-verification=B5tS98xLS8LWKgF... |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | arely.ns.cloudflare.com dns.cloudflare.c |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (cash.ns.cloudflare.com, cash.ns.cloudflare.com, cash.ns.cloudflare.com...)
Analysis
Hierarchy
classcentral.com is the parent zone for www.classcentral.com.
IP Addresses
classcentral.com resolves to four IP addresses: 104.20.31.233, 172.66.155.95, 2606:4700:10::6814:1fe9 and 2606:4700:10::ac42:9b5f.
cygnusscan-dnfbp.crowe.ae.cdn.cloudflare.net, www.richardblumenthal.com, savitarna.miestogijos.lt and two other host names share IP numbers with classcentral.com.
Name Servers
DNS delegation for classcentral.com points to two name servers: arely.ns.cloudflare.com and cash.ns.cloudflare.com.
classcentral.com uses the same name servers as several other domains — among them silversquare.co.in, etsltd.co.uk, treinamentolinux.com.br and two more.
classcentral.com partially shares its NS delegation with several other domains, including flora-crimea.ru, nxzhgl.com, poshmaal.org and two others.
These name servers often co-occur with the name servers jerome.ns.cloudflare.com.
Hostnames that resolve to 6 IP addresses:
arely.ns.cloudflare.com has IP addresses 108.162.194.164, 162.159.38.164 and 172.64.34.164, plus 3 other.
cash.ns.cloudflare.com has IP addresses 108.162.193.81, 172.64.33.81 and 173.245.59.81, plus 3 other.
Mail Servers
classcentral.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.
classcentral.com has at least partial mail server overlap with other domains such as matthewlloyd.co.uk, recoequip.net, pingtheory.net and two more.
These mail servers commonly co-occur with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 others.
Hostnames that resolve to two IP addresses:
aspmx.l.google.com has two IP addresses: 142.251.179.26 and 2607:f8b0:4004:c21::1b.
alt1.aspmx.l.google.com has two IP addresses: 192.178.234.26 and 2800:3f0:4003:c14::1b.
alt2.aspmx.l.google.com has two IP addresses: 172.253.116.26 and 2a00:1450:400b:c02::1a.
alt3.aspmx.l.google.com has two IP addresses: 192.178.223.27 and 2a00:1450:4009:c0f::1b.
alt4.aspmx.l.google.com has two IP addresses: 172.253.157.26 and 2a00:1450:400c:c23::1b.