cardiothink.com - robtex.com
cardiothink.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=1774611507 | ||||||
Subdomains
Same first word
cardiothink.com |
DNS History
10 records (8 active, 2 former)
○NScardiothink.com.cardiothink.com2015-05-25 → 2017-09-03 · 4 obs
● 2017-09-03 02:49:40
○ 2026-02-17 12:42:12
○ 2026-03-27 12:00:08
●NSns1.cardiothink.com2015-05-25 → 2026-03-27 · 2 obs
● 2026-03-27 12:00:08
●NSns2.cardiothink.com2015-05-25 → 2026-03-27 · 2 obs
● 2026-03-27 12:00:08
●MXns1.cardiothink.com2015-05-25 → 2026-03-27 · 2 obs
● 2026-03-27 12:00:08
○A108.224.176.752015-05-25 → 2017-09-03 · 4 obs
● 2017-09-03 02:49:40
○ 2026-02-17 12:42:12
○ 2026-03-27 12:00:08
●A172.104.197.2512026-02-17 → 2026-03-27 · 3 obs
● 2026-02-17 12:42:12
● 2026-03-27 12:00:08
●A2600:3c00::f03c:92ff:fe27:e2902026-02-17 → 2026-03-27 · 3 obs
● 2026-02-17 12:42:12
● 2026-03-27 12:00:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net... | - |
| cardiothink.com | ns2.cardiothink.com, ns1.cardiothink.com, ns1.cecst.com, ns2.cecst.com | 8 records |
✅ Authoritative Response
Server:172.104.197.251
NS records: ns2.cardiothink.com, ns1.cardiothink.com, ns1.cecst.com, ns2.cecst.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 568ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 172.104.197.251 |
| AAAA | 1 | 2600:3c00::f03c:92ff:fe27:e290 |
| NS | 4 | ns1.cardiothink.com, ns2.cardiothink.com... |
| MX | 2 | ns1.cardiothink.com (pri: 0), ns1.cecst.com (pri: 10) |
| TXT | 2 | protonmail-verification=96bde82bfea5d609, v=spf1 include:_spf.protonmail.ch ip4:17 |
| SOA | 1 | ns1.cardiothink.com root.ns1.cardiothink |
📌 Glue Records Collected
Total: 8
In-bailiwick: 4 (ns2.cardiothink.com, ns2.cardiothink.com, ns1.cardiothink.com...)
Out-of-bailiwick: 4 (ns1.cecst.com, ns1.cecst.com, ns2.cecst.com...)
Analysis
Hierarchy
cardiothink.com has mail.cardiothink.com, ns1.cardiothink.com and ns2.cardiothink.com as children.
IP Addresses
cardiothink.com points to two IP numbers: 2600:3c00::f03c:92ff:fe27:e290 and 172.104.197.251.
Other host names such as thewidmans.org, ns2.cecst.com, thewidmans.com, mail.cardiothink.com and ns1.cardiothink.com share IPs with cardiothink.com.
Name Servers
cardiothink.com is delegated to four name servers: ns1.cardiothink.com, ns2.cardiothink.com, ns1.cecst.com and ns2.cecst.com.
cardiothink.com at least partially shares name servers with other domains, for example thewidmans.org, leafycreekfarm.com, thewidmans.com, ppcsafe.com and cecst.com.
These name servers are often used with ns1.cardiothink.com.thewidmans.org, ns1.cardiothink.com.thewidmans.com, ns1.cardiothink.com.koshergrassfedbeef.com, ns1.cardiothink.com.ppc-pal.com and einthoven.com.einthoven.com.
Host names with two IP numbers:
ns1.cardiothink.com points to 2600:3c00::f03c:92ff:fe27:e290 and 172.104.197.251.
ns2.cardiothink.com points to 2a01:7e01::f03c:92ff:fe27:e355 and 194.233.162.185.
ns1.cecst.com points to 2a01:7e01::f03c:92ff:fe27:e355 and 194.233.162.185.
ns2.cecst.com points to 2600:3c00::f03c:92ff:fe27:e290 and 172.104.197.251.
Host names that point to 2600:3c00::f03c:92ff:fe27:e290: ns1.cardiothink.com and ns2.cecst.com.
Host names that point to 172.104.197.251: ns1.cardiothink.com and ns2.cecst.com.
Host names that point to 2a01:7e01::f03c:92ff:fe27:e355: ns2.cardiothink.com and ns1.cecst.com.
Host names that point to 194.233.162.185: ns2.cardiothink.com and ns1.cecst.com.
Mail Servers
Two mail servers handle cardiothink.com: ns1.cardiothink.com and ns1.cecst.com.
cardiothink.com shares the same mail server setup as other domains, including ppcsafe.com, cecst.com, einthoven.com, koshergrassfedbeef.com and ppc-pal.com.