`cardiodoctors.com`

DNSSEC	⚠️ Not signed
A	76.76.21.21^{🇺🇸 Amazon76.76.21.0/24 EC2 Prefix}
NS	`ns27.domaincontrol.com` ⭐
		A	2603:5:2171::e^{🇺🇸 GODADDY-DNS2603:5:2170::/44}
			PTR	`ns27.domaincontrol.com`
		A	97.74.103.14^{🇺🇸 GODADDY-DNS97.74.102.0/23}
			PTR	`ns27.domaincontrol.com`
NS	`ns28.domaincontrol.com`
		A	2603:5:2271::e^{🇺🇸 GODADDY-DNS2603:5:2270::/44}
			PTR	`ns28.domaincontrol.com`
		A	173.201.71.14^{🇺🇸 GODADDY-DNS173.201.70.0/23}
			PTR	`ns28.domaincontrol.com`
MX	`mx1-us1.ppe-hosted.com` ⭐
		A	67.231.154.162^{🇺🇸 Proofpoint67.231.154.0/24 Inc.}
			PTR	`mx1-us1.ppe-hosted.com`
		A	148.163.129.50^{🇺🇸 AS13916148.163.129.0/24 Proofpoint Inc.}
			PTR	`mx1-us1.ppe-hosted.com`
MX	`mx2-us1.ppe-hosted.com` ⭐
		A	67.231.154.163^{🇺🇸 Proofpoint67.231.154.0/24 Inc.}
			PTR	`mx2-us1.ppe-hosted.com`
		A	148.163.129.51^{🇺🇸 AS13916148.163.129.0/24 Proofpoint Inc.}
			PTR	`mx2-us1.ppe-hosted.com`
TXT	`ppe-cdb04c1732c7a26d463b7a69ed0fea9395427971`
TXT	`v=spf1 include:_spf.epchosting.com ~all`
SOA	`ns27.domaincontrol.com`dns@jomax.net 2026-03-14 #1

`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.net`nstld@verisign-grs.com serial=1778745626

Same first word

cardiodoctors.com

cardiodoctors.net

DNS History

18 records (5 active, 13 former)

○NSa2s65.a2hosting.com2015-07-04 → 2016-12-30 · 4 obs

● 2015-07-04 03:28:08
● 2016-12-30 22:58:42
○ 2019-04-25 21:35:46
○ 2026-05-14 08:11:38

○NSns1.a2hosting.com2019-04-25 → 2019-04-25 · 4 obs

○ 2016-12-30 22:58:42
● 2019-04-25 21:35:46
○ 2026-04-09 10:06:24
○ 2026-05-14 08:11:38

○NSns2.a2hosting.com2019-04-25 → 2019-04-25 · 4 obs

○ 2016-12-30 22:58:42
● 2019-04-25 21:35:46
○ 2026-04-09 10:06:24
○ 2026-05-14 08:11:38

●NSns27.domaincontrol.com2026-04-09 → 2026-05-14 · 3 obs

○ 2019-04-25 21:35:46
● 2026-04-09 10:06:24
● 2026-05-14 08:11:38

●NSns28.domaincontrol.com2026-04-09 → 2026-05-14 · 3 obs

○ 2019-04-25 21:35:46
● 2026-04-09 10:06:24
● 2026-05-14 08:11:38

○NSns3.a2hosting.com2015-07-04 → 2019-04-25 · 4 obs

● 2015-07-04 03:28:08
● 2019-04-25 21:35:46
○ 2026-04-09 10:06:24
○ 2026-05-14 08:11:38

○NSns4.a2hosting.com2015-07-04 → 2019-04-25 · 4 obs

● 2015-07-04 03:28:08
● 2019-04-25 21:35:46
○ 2026-04-09 10:06:24
○ 2026-05-14 08:11:38

○MXasp.reflexion.net2015-07-04 → 2016-02-02 · 4 obs

● 2015-07-04 03:28:08
● 2016-02-02 02:53:04
○ 2016-04-28 02:03:12
○ 2026-05-14 08:11:38

○MXmail.epchosting.com2016-04-28 → 2019-04-25 · 5 obs

○ 2016-02-02 02:53:04
● 2016-04-28 02:03:12
● 2019-04-25 21:35:46
○ 2026-04-09 10:06:24
○ 2026-05-14 08:11:38

○MXmx-100.reflexion.net2015-07-04 → 2016-02-02 · 4 obs

● 2015-07-04 03:28:08
● 2016-02-02 02:53:04
○ 2016-04-28 02:03:12
○ 2026-05-14 08:11:38

○MXmx-110.reflexion.net2015-07-04 → 2016-02-02 · 4 obs

● 2015-07-04 03:28:08
● 2016-02-02 02:53:04
○ 2016-04-28 02:03:12
○ 2026-05-14 08:11:38

●MXmx1-us1.ppe-hosted.com2026-04-09 → 2026-05-14 · 3 obs

○ 2019-04-25 21:35:46
● 2026-04-09 10:06:24
● 2026-05-14 08:11:38

●MXmx2-us1.ppe-hosted.com2026-04-09 → 2026-05-14 · 3 obs

○ 2019-04-25 21:35:46
● 2026-04-09 10:06:24
● 2026-05-14 08:11:38

○A15.197.148.332026-04-09 → 2026-05-14 · 2 obs

○ 2026-04-09 10:06:24
○ 2026-05-14 08:11:38

○A3.33.130.1902026-04-09 → 2026-05-14 · 2 obs

○ 2026-04-09 10:06:24
○ 2026-05-14 08:11:38

○A68.66.200.2062019-04-25 → 2019-04-25 · 4 obs

○ 2016-12-30 22:58:42
● 2019-04-25 21:35:46
○ 2026-04-09 10:06:24
○ 2026-05-14 08:11:38

○A75.98.166.1942015-07-04 → 2016-12-30 · 4 obs

● 2015-07-04 03:28:08
● 2016-12-30 22:58:42
○ 2019-04-25 21:35:46
○ 2026-05-14 08:11:38

●A76.76.21.212026-04-09 → 2026-05-14 · 3 obs

○ 2019-04-25 21:35:46
● 2026-04-09 10:06:24
● 2026-05-14 08:11:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
cardiodoctors.com	ns27.domaincontrol.com, ns28.domaincontrol.com	4 records

✅ Authoritative Response

Server:173.201.71.14

NS records: ns27.domaincontrol.com, ns28.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cardiodoctors.com (unsigned zone)

⏱️ Timing

Total: 216ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`76.76.21.21`
NS	2	`ns27.domaincontrol.com, ns28.domaincontrol.com`
MX	2	`mx2-us1.ppe-hosted.com (pri: 10), mx1-us1.ppe-hosted.com (pri: 10)`
TXT	2	`ppe-cdb04c1732c7a26d463b7a69ed0fea939542, v=spf1 include:_spf.epchosting.com ~all`
SOA	1	`ns27.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns27.domaincontrol.com, ns27.domaincontrol.com, ns28.domaincontrol.com...)

Analysis

IP Addresses

cardiodoctors.com points to an IP address: 76.76.21.21.

other host names include entradio.cz, cxo.ai, javorina.eu, funt.in and fragment440.com; they share IP numbers with cardiodoctors.com.

Name Servers

Two name servers ns27.domaincontrol.com and ns28.domaincontrol.com handle the delegation for cardiodoctors.com.

cardiodoctors.com shares the same name server setup as other domains, for instance cochrannation.com, hctools.com, holi24.org, bootlegcrusher.com and nephrologyassociate.com.

cardiodoctors.com shares name servers with other domains at least partially, for example dachdecker-hipper.de.

Host names with two IP numbers:

ns27.domaincontrol.com points to 2603:5:2171::e and 97.74.103.14.

ns28.domaincontrol.com points to 2603:5:2271::e and 173.201.71.14.

Mail Servers

cardiodoctors.com is handled by two mail servers: mx1-us1.ppe-hosted.com and mx2-us1.ppe-hosted.com.

cardiodoctors.com uses the same mail server setup as other domains, for instance dronazon.com, erichson.com, dornbossign.com, laurelms.com and metzbank.bank.

cardiodoctors.com shares some mail servers with other domains, including janetandgreg.com, paragonvineyard.com, northtexaswellness.com and bubblecommunications.com.

Host names with two IP numbers:

mx1-us1.ppe-hosted.com points to 67.231.154.162 and 148.163.129.50.

mx2-us1.ppe-hosted.com points to 67.231.154.163 and 148.163.129.51.

cardiodoctors.com - robtex.com