`cardiotek.com`

DNSSEC	⚠️ Not signed
A	188.94.254.61^{🇩🇪 MITTWALD-AS188.94.248.0/21 Mittwald CM Service GmbH und Co. KG}
NS	`ns01.agenturserver.de` ⭐
		A	185.247.151.111^{🇩🇪 MITTWALD-AS185.247.151.0/24 Mittwald CM Service GmbH und Co. KG}
			PTR	`ns01.agenturserver.de`
NS	`ns01.agenturserver.co`
		A	185.247.150.113^{🇩🇪 CORE-BACKBONE185.247.150.0/24 Mittwald CM Service GmbH und Co. KG}
			PTR	`ns01.agenturserver.co`
NS	`ns01.agenturserver.it`
		A	185.247.151.112^{🇩🇪 MITTWALD-AS185.247.151.0/24 Mittwald CM Service GmbH und Co. KG}
			PTR	`ns01.agenturserver.it`
MX	`mx01.hornetsecurity.com` ⭐
		A	94.100.132.8^{🇩🇪 MK-NETZDIENSTE-AS94.100.132.0/23 ANTISPAMEUROPE-NET via AS25394}
			PTR	`mx01.hornetsecurity.com`
MX	`mx02.hornetsecurity.com`⁽²⁰⁾
		A	94.100.136.8^{🇩🇪 SSERV-AS94.100.136.0/23 ANTISPAMEUROPE via as24679.net}
			PTR	`mx02.hornetsecurity.com`
MX	`mx03.hornetsecurity.com`⁽³⁰⁾
		A	94.100.134.8^{🇩🇪 NCORE-AS94.100.134.0/24 antispameurope GmbH via as12676}
			PTR	`mx03.hornetsecurity.com`
MX	`mx04.hornetsecurity.com`⁽⁴⁰⁾
		A	94.100.136.7^{🇩🇪 SSERV-AS94.100.136.0/23 ANTISPAMEUROPE via as24679.net}
			PTR	`mx04.hornetsecurity.com`
TXT	`hibp-verify=dweb_ymmk68yp54wbjfe69lvfz64a`
TXT	`v=spf1 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all`
SOA	`ns01.agenturserver.de`support@mittwald.de serial=1762870918

`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=1771291435

Subdomains

smtp.cardiotek.com

Same first word

cardiotek.com

Similar names

DNS History

18 records (8 active, 10 former)

○NSdns1.vip.nl2015-09-01 → 2017-08-29 · 4 obs

● 2015-09-01 15:44:58
● 2017-08-29 05:04:58
○ 2026-02-15 03:26:22
○ 2026-03-23 00:49:42

○NSdns2.vip.eu2017-07-08 → 2017-08-29 · 5 obs

○ 2017-05-21 16:22:02
● 2017-07-08 05:16:52
● 2017-08-29 05:04:58
○ 2026-02-15 03:26:22
○ 2026-03-23 00:49:42

○NSdns2.vip.nl2015-09-01 → 2017-05-21 · 4 obs

● 2015-09-01 15:44:58
● 2017-05-21 16:22:02
○ 2017-07-08 05:16:52
○ 2026-03-23 00:49:42

○NSdns3.vip.nl2015-09-01 → 2017-05-21 · 4 obs

● 2015-09-01 15:44:58
● 2017-05-21 16:22:02
○ 2017-07-08 05:16:52
○ 2026-03-23 00:49:42

●NSns01.agenturserver.co2026-02-15 → 2026-03-23 · 3 obs

○ 2017-08-29 05:04:58
● 2026-02-15 03:26:22
● 2026-03-23 00:49:42

●NSns01.agenturserver.de2026-02-15 → 2026-03-23 · 3 obs

○ 2017-08-29 05:04:58
● 2026-02-15 03:26:22
● 2026-03-23 00:49:42

●NSns01.agenturserver.it2026-02-15 → 2026-03-23 · 3 obs

○ 2017-08-29 05:04:58
● 2026-02-15 03:26:22
● 2026-03-23 00:49:42

○NSvip.resolver.domains2017-07-08 → 2017-08-29 · 5 obs

○ 2017-05-21 16:22:02
● 2017-07-08 05:16:52
● 2017-08-29 05:04:58
○ 2026-02-15 03:26:22
○ 2026-03-23 00:49:42

○MXmailhub01.cloud01-netplans.de2016-11-04 → 2017-08-29 · 5 obs

○ 2016-09-24 18:10:20
● 2016-11-04 08:23:42
● 2017-08-29 05:04:58
○ 2026-02-15 03:26:22
○ 2026-03-23 00:49:42

●MXmx01.hornetsecurity.com2026-02-15 → 2026-03-23 · 3 obs

○ 2017-08-29 05:04:58
● 2026-02-15 03:26:22
● 2026-03-23 00:49:42

○MXmx01.provider.nl2015-09-01 → 2015-10-04 · 4 obs

● 2015-09-01 15:44:58
● 2015-10-04 12:08:06
○ 2015-10-20 11:28:18
○ 2026-03-23 00:49:42

●MXmx02.hornetsecurity.com2026-02-15 → 2026-03-23 · 3 obs

○ 2017-08-29 05:04:58
● 2026-02-15 03:26:22
● 2026-03-23 00:49:42

○MXmx02.provider.nl2015-09-01 → 2015-10-04 · 4 obs

● 2015-09-01 15:44:58
● 2015-10-04 12:08:06
○ 2015-10-20 11:28:18
○ 2026-03-23 00:49:42

●MXmx03.hornetsecurity.com2026-02-15 → 2026-03-23 · 3 obs

○ 2017-08-29 05:04:58
● 2026-02-15 03:26:22
● 2026-03-23 00:49:42

●MXmx04.hornetsecurity.com2026-02-15 → 2026-03-23 · 3 obs

○ 2017-08-29 05:04:58
● 2026-02-15 03:26:22
● 2026-03-23 00:49:42

○MXsmtp.cardiotek.com2015-09-01 → 2016-09-24 · 4 obs

● 2015-09-01 15:44:58
● 2016-09-24 18:10:20
○ 2016-11-04 08:23:42
○ 2026-03-23 00:49:42

○A148.251.194.612015-09-01 → 2016-11-04 · 4 obs

● 2015-09-01 15:44:58
● 2016-11-04 08:23:42
○ 2016-12-03 15:20:52
○ 2026-03-23 00:49:42

●A188.94.254.612016-12-03 → 2026-03-23 · 3 obs

○ 2016-11-04 08:23:42
● 2016-12-03 15:20:52
● 2026-03-23 00:49:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, h.gtld-servers.net, j.gtld-servers.net, d.gtld-servers.net...	-
cardiotek.com	ns01.agenturserver.de, ns01.agenturserver.it, ns01.agenturserver.co	-

✅ Authoritative Response

Server:185.247.151.111

NS records: ns01.agenturserver.de, ns01.agenturserver.it, ns01.agenturserver.co

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cardiotek.com (unsigned zone)

⏱️ Timing

Total: 446ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`188.94.254.61`
NS	3	`ns01.agenturserver.de, ns01.agenturserver.co...`
MX	4	`mx04.hornetsecurity.com (pri: 40), mx02.hornetsecurity.com (pri: 20)...`
TXT	2	`v=spf1 include:spf.protection.outlook.co, hibp-verify=dweb_ymmk68yp54wbjfe69lvfz64`
SOA	1	`ns01.agenturserver.de support.mittwald.d`

Analysis

Hierarchy

cardiotek.com is the parent of smtp.cardiotek.com.

IP Addresses

cardiotek.com points to IP number 188.94.254.61.

For instance, other host names gedw.org, scheuering.org, vieler-shop.de, net-lawyer.de and risk-and-evaluation.de share IP numbers with cardiotek.com.

Name Servers

The delegation for cardiotek.com is handled by three name servers: ns01.agenturserver.co, ns01.agenturserver.de and ns01.agenturserver.it.

cardiotek.com shares name servers with other domains at least partially, for example dr-fischer-freiberg.de, kinder(0x616e616c)ytiker.de, museen-brandenburg.de, karlsbad-bruehl.de and cahnhaeuser.de.

Host names with a single IP address: ns01.agenturserver.co points to 185.247.150.113; ns01.agenturserver.de points to 185.247.151.111; ns01.agenturserver.it points to 185.247.151.112.

Mail Servers

cardiotek.com is handled by four mail servers: mx01.hornetsecurity.com, mx02.hornetsecurity.com, mx03.hornetsecurity.com and mx04.hornetsecurity.com.

cardiotek.com shares mail servers with other domains at least partially; for instance abbruch-sauter.de, liphookgolfclub.com, hpohle-edv.de, kinderhospiz-loewenherz.de and gpe.de.

Host names with a single IP:

mx01.hornetsecurity.com points to 94.100.132.8

mx02.hornetsecurity.com points to 94.100.136.8

mx03.hornetsecurity.com points to 94.100.134.8

mx04.hornetsecurity.com points to 94.100.136.7

cardiotek.com - robtex.com

cardiotek.com

com

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`cardiotek.com`

`com`