`heartwaretools.de`

DNSSEC	⚠️ Not signed
A	91.136.8.144^{🇨🇦 INFB-AS911591.136.0.0/17 Internet Names For Business}
		PTR	`hostedc52.megawebservers.eu`
NS	`ns1.telefonica.de` ⭐
		A	62.53.237.12^{🇩🇪 TDDE-ASN162.52.0.0/14 Telefonica Deutschland GmbH}
			PTR	`ns1.telefonica.de`
NS	`ns2.telefonica.de`
		A	213.20.172.204^{🇩🇪 TDDE-ASN1213.20.0.0/16 Telefonica Deutschland GmbH}
			PTR	`ns2.telefonica.de`
NS	`ns3.telefonica.de`
		A	195.71.243.188^{🇩🇪 TDDE-ASN1195.71.0.0/16 Telefonica Germany GmbH & Co. OHG}
			PTR	`ns3.telefonica.de`
MX	`mx.alice-dsl.net` ⭐
		A	91.136.8.194^{🇨🇦 INFB-AS911591.136.0.0/17 Internet Names For Business}
			PTR	`mx1c52.megamailservers.eu`
SOA	`ns1.telefonica.de`hostmaster@telefonica.de serial=157

`de`

	DNSSEC	🔒 Signed (DS record present)
	NS	`f.nic.de` ⭐
	NS	`a.nic.de`
	NS	`l.de.net` ⚠️ Not in parent delegation
	NS	`n.de.net` ⚠️ Not in parent delegation
	NS	`s.de.net` ⚠️ Not in parent delegation
	NS	`z.nic.de`
	SOA	`f.nic.de`dns-operations@denic.de serial=1774637807

Same first word

heartwaretools.de

DNS History

7 records (5 active, 2 former)

○NSns1.hansenet.de2015-07-23 → 2016-12-20 · 4 obs

● 2015-07-23 17:31:10
● 2016-12-20 21:19:22
○ 2018-01-11 10:57:18
○ 2026-03-27 19:25:56

●NSns1.telefonica.de2018-01-11 → 2026-03-27 · 3 obs

○ 2016-12-20 21:19:22
● 2018-01-11 10:57:18
● 2026-03-27 19:25:56

○NSns2.hansenet.de2015-07-23 → 2016-12-20 · 4 obs

● 2015-07-23 17:31:10
● 2016-12-20 21:19:22
○ 2018-01-11 10:57:18
○ 2026-03-27 19:25:56

●NSns2.telefonica.de2018-01-11 → 2026-03-27 · 3 obs

○ 2016-12-20 21:19:22
● 2018-01-11 10:57:18
● 2026-03-27 19:25:56

●NSns3.telefonica.de2018-01-11 → 2026-03-27 · 3 obs

○ 2016-12-20 21:19:22
● 2018-01-11 10:57:18
● 2026-03-27 19:25:56

●MXmx.alice-dsl.net2015-07-23 → 2026-03-27 · 2 obs

● 2015-07-23 17:31:10
● 2026-03-27 19:25:56

●A91.136.8.1442015-07-23 → 2026-03-27 · 2 obs

● 2015-07-23 17:31:10
● 2026-03-27 19:25:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
heartwaretools.de	ns3.telefonica.de, ns1.telefonica.de, ns2.telefonica.de	3 records

✅ Authoritative Response

Server:62.53.237.12

NS records: ns3.telefonica.de, ns1.telefonica.de, ns2.telefonica.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for heartwaretools.de (unsigned zone)

⏱️ Timing

Total: 725ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.136.8.144`
NS	3	`ns2.telefonica.de, ns3.telefonica.de...`
MX	1	`mx.alice-dsl.net (pri: 10)`
SOA	1	`ns1.telefonica.de hostmaster.telefonica.`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.telefonica.de, ns2.telefonica.de, ns3.telefonica.de)

Analysis

IP Addresses

heartwaretools.de resolves to one IP number: 91.136.8.144.

other host names including sehenswert-ab.de, thomasbehrmann.de, blhh.de, shimazu1.de and bastijo.de share IP numbers with heartwaretools.de.

Name Servers

heartwaretools.de is delegated to three name servers ns1.telefonica.de, ns2.telefonica.de and ns3.telefonica.de.

heartwaretools.de at least partially shares name servers with other domains, for instance main-course.de, ittelecom.de, ralas.de, 241.15.89.in-addr.arpa and bitcollection.de.

Host names with one IP number: ns1.telefonica.de points to 62.53.237.12; ns2.telefonica.de points to 213.20.172.204; ns3.telefonica.de points to 195.71.243.188.

Mail Servers

heartwaretools.de is handled by a single mail server, mx.alice-dsl.net.

heartwaretools.de shares the same mail server setup as other domains, for instance hausrissen.de, ondag.net, roomrocker.de, uhrwerk-gmbh.de and urpop.org.

mx.alice-dsl.net resolves to IP 91.136.8.194.

heartwaretools.de - robtex.com