ctrn.com - dns.ninja
ctrn.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=1785123867 | ||||||
Subdomains
cd3.ctrn.com |
cd5.ctrn.com |
googlecdn.ctrn.com |
Same first word
Similar names
DNS History
9 records (8 active, 1 former)
●NSns51.domaincontrol.com2015-07-15 → 2026-07-27 · 2 obs
● 2026-07-27 03:52:56
●NSns52.domaincontrol.com2015-07-15 → 2026-07-27 · 2 obs
● 2026-07-27 03:52:56
●MXalt2.aspmx.l.google.com2015-07-15 → 2026-07-27 · 2 obs
● 2026-07-27 03:52:56
●MXaspmx.l.google.com2015-07-15 → 2026-07-27 · 2 obs
● 2026-07-27 03:52:56
●MXaspmx2.googlemail.com2015-07-15 → 2026-07-27 · 2 obs
● 2026-07-27 03:52:56
●MXaspmx3.googlemail.com2015-07-15 → 2026-07-27 · 2 obs
● 2026-07-27 03:52:56
●MXmailstore1.secureserver.netalt1.aspmx.l.google.com2015-07-15 → 2026-07-27 · 2 obs
● 2026-07-27 03:52:56
●A104.196.68.812026-02-16 → 2026-07-27 · 3 obs
● 2026-02-16 17:01:00
● 2026-07-27 03:52:56
○A50.97.247.502015-07-15 → 2017-03-18 · 4 obs
● 2017-03-18 03:48:22
○ 2026-02-16 17:01:00
○ 2026-07-27 03:52:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, i.gtld-servers.net, f.gtld-servers.net, e.gtld-servers.net... | - |
| ctrn.com | ns51.domaincontrol.com, ns52.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:173.201.73.26
NS records: ns51.domaincontrol.com, ns52.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctrn.com (unsigned zone)
⏱️ Timing
Total: 127ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 104.196.68.81 |
| NS | 2 | ns51.domaincontrol.com, ns52.domaincontrol.com |
| MX | 5 | alt2.aspmx.l.google.com (pri: 30), aspmx.l.google.com (pri: 10)... |
| TXT | 1 | google-site-verification=4EcjQQPvTuVbc1v |
| SOA | 1 | ns51.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns51.domaincontrol.com, ns51.domaincontrol.com, ns52.domaincontrol.com...)
Analysis
Hierarchy
cd3.ctrn.com, cd5.ctrn.com and googlecdn.ctrn.com are all subdomains of ctrn.com.
IP Addresses
ctrn.com resolves to just one IP address, 104.196.68.81.
Other hosts including 81.68.196.104.bc.googleusercontent.com, changethatsrightnow.com and fear-of-public-speaking.changethatsrightnow.com share IP addresses with ctrn.com.
Name Servers
ctrn.com has two authoritative name servers — ns51.domaincontrol.com and ns52.domaincontrol.com.
ctrn.com shares its NS records with other domains, for example onlineofac.com, jamaicards.com, mentallens.com and two others.
Both ns51.domaincontrol.com and ns52.domaincontrol.com have two IP addresses each. ns51.domaincontrol.com resolves to 97.74.105.26 and 2603:5:2192::1a; ns52.domaincontrol.com resolves to 173.201.73.26 and 2603:5:2292::1a.
Mail Servers
ctrn.com has five mail servers, which are aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.
There is at least a partial MX overlap between ctrn.com and other domains, including herip.net, johnsfencing.com, cesmags.com and two others.
These mail servers tend to appear in combination with mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 others.
The hosts aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and alt2.aspmx.l.google.com each have two IP addresses: aspmx2.googlemail.com has 108.177.123.27 and 2800:3f0:4003:c0f::1b, aspmx3.googlemail.com has 172.253.116.27 and 2a00:1450:400b:c02::1b, aspmx.l.google.com has 64.233.180.27 and 2607:f8b0:4004:c1b::1b and alt2.aspmx.l.google.com has 172.253.116.27 and 2a00:1450:400b:c02::1b.
The host names aspmx3.googlemail.com and alt2.aspmx.l.google.com both resolve to 2a00:1450:400b:c02::1b IP addresses.
The host names aspmx3.googlemail.com and alt2.aspmx.l.google.com both resolve to 172.253.116.27 IP addresses.