`michael-schefczyk.de`

DNSSEC	🔒 Signed (DS record present)
A	24.134.7.185^{🇩🇪 VODANET24.134.0.0/16 Vodafone-gesamt}
		PTR	`srv.schefczyk.net`
NS	`srv1.schefczyk.net` ⭐
		A	87.128.89.29^{🇩🇪 DTAG87.128.0.0/10 Deutsche Telekom AG, Internet service provider}
			PTR	`srv1.schefczyk.net`
NS	`srv.b72.com`
		A	78.94.217.198^{🇩🇪 VODANET78.94.128.0/17 Vodafone West}
			PTR	`srv.b72.com`
NS	`srv.schefczyk.net`
		A	24.134.7.185^{🇩🇪 VODANET24.134.0.0/16 Vodafone-gesamt}
			PTR	`srv.schefczyk.net`
NS	`srv1.b72.com`
		A	87.128.10.46^{🇩🇪 DTAG87.128.0.0/10 Deutsche Telekom AG, Internet service provider}
			PTR	`srv1.b72.com`
MX	`srv1.schefczyk.net` ⭐
		A	87.128.89.29^{🇩🇪 DTAG87.128.0.0/10 Deutsche Telekom AG, Internet service provider}
			PTR	`srv1.schefczyk.net`
MX	`srv.schefczyk.net`⁽¹⁵⁾
		A	24.134.7.185^{🇩🇪 VODANET24.134.0.0/16 Vodafone-gesamt}
			PTR	`srv.schefczyk.net`
MX	`srv1.b72.com`⁽²⁰⁾
		A	87.128.10.46^{🇩🇪 DTAG87.128.0.0/10 Deutsche Telekom AG, Internet service provider}
			PTR	`srv1.b72.com`
MX	`srv.b72.com`⁽²⁵⁾
		A	78.94.217.198^{🇩🇪 VODANET78.94.128.0/17 Vodafone West}
			PTR	`srv.b72.com`
TXT	`v=spf1 a a:srv.schefczyk.net a:srv1.schefczyk.net a:srv.b72.com a:srv1.b72.co...`
SOA	`srv.schefczyk.net`postmaster@schefczyk.net serial=1503991738

`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=1776193233

🔒 HSTS Preload (+subdomains)

Same first word

michael-schefczyk.de

DNS History

14 records (9 active, 5 former)

○NSns5.kasserver.com2015-06-08 → 2017-04-24 · 4 obs

● 2015-06-08 19:58:50
● 2017-04-24 19:42:14
○ 2026-04-13 04:04:24
○ 2026-04-14 19:07:46

○NSns6.kasserver.com2015-06-08 → 2017-04-24 · 4 obs

● 2015-06-08 19:58:50
● 2017-04-24 19:42:14
○ 2026-04-13 04:04:24
○ 2026-04-14 19:07:46

●NSsrv.b72.com2026-04-13 → 2026-04-14 · 3 obs

○ 2017-04-24 19:42:14
● 2026-04-13 04:04:24
● 2026-04-14 19:07:46

●NSsrv.schefczyk.net2026-04-13 → 2026-04-14 · 3 obs

○ 2017-04-24 19:42:14
● 2026-04-13 04:04:24
● 2026-04-14 19:07:46

●NSsrv1.b72.com2026-04-13 → 2026-04-14 · 3 obs

○ 2017-04-24 19:42:14
● 2026-04-13 04:04:24
● 2026-04-14 19:07:46

●NSsrv1.schefczyk.net2026-04-13 → 2026-04-14 · 3 obs

○ 2017-04-24 19:42:14
● 2026-04-13 04:04:24
● 2026-04-14 19:07:46

○MXmail.michael-schefczyk.de2015-06-08 → 2016-04-29 · 4 obs

● 2015-06-08 19:58:50
● 2016-04-29 07:43:04
○ 2017-04-24 19:42:14
○ 2026-04-14 19:07:46

●MXsrv.b72.com2026-04-13 → 2026-04-14 · 3 obs

○ 2017-04-24 19:42:14
● 2026-04-13 04:04:24
● 2026-04-14 19:07:46

●MXsrv.schefczyk.net2026-04-13 → 2026-04-14 · 3 obs

○ 2017-04-24 19:42:14
● 2026-04-13 04:04:24
● 2026-04-14 19:07:46

●MXsrv1.b72.com2026-04-13 → 2026-04-14 · 3 obs

○ 2017-04-24 19:42:14
● 2026-04-13 04:04:24
● 2026-04-14 19:07:46

●MXsrv1.schefczyk.net2026-04-13 → 2026-04-14 · 3 obs

○ 2017-04-24 19:42:14
● 2026-04-13 04:04:24
● 2026-04-14 19:07:46

○MXw0059364.kasserver.com2017-04-24 → 2017-04-24 · 4 obs

○ 2016-04-29 07:43:04
● 2017-04-24 19:42:14
○ 2026-04-13 04:04:24
○ 2026-04-14 19:07:46

●A24.134.7.1852026-04-13 → 2026-04-14 · 3 obs

○ 2017-04-24 19:42:14
● 2026-04-13 04:04:24
● 2026-04-14 19:07:46

○A85.13.133.482015-06-08 → 2017-04-24 · 4 obs

● 2015-06-08 19:58:50
● 2017-04-24 19:42:14
○ 2026-04-13 04:04:24
○ 2026-04-14 19:07:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	f.nic.de, a.nic.de, z.nic.de	-
michael-schefczyk.de	srv.b72.com, srv.schefczyk.net, srv1.b72.com, srv1.schefczyk.net	-

✅ Authoritative Response

Server:87.128.10.46

NS records: srv.b72.com, srv.schefczyk.net, srv1.b72.com, srv1.schefczyk.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1260ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`24.134.7.185`
NS	4	`srv.schefczyk.net, srv1.schefczyk.net...`
MX	4	`srv.schefczyk.net (pri: 10), srv1.schefczyk.net (pri: 15)...`
TXT	1	`v=spf1 a a:srv.schefczyk.net a:srv1.sche`
SOA	1	`srv.schefczyk.net postmaster.schefczyk.n`

Analysis

IP Addresses

michael-schefczyk.de points to IP number 24.134.7.185.

For instance, other host names do67.net, dns1.schefczyk.net, srv2.schefczyk.netsrv1.schefczyk.net, schefczyk.eu and dezet-ev.de share IP numbers with michael-schefczyk.de.

Name Servers

michael-schefczyk.de is delegated to four name servers: srv1.b72.com, srv.b72.com, srv1.schefczyk.net and srv.schefczyk.net.

michael-schefczyk.de shares name servers with other domains at least partially, for example stb-schefczyk.ch, realum.eu, venturum.eu, schefczyk.com and xn--grnderlehrstuhl-0vb.de.

These name servers are commonly used with dns2.schefczyk.net, dns3.schefczyk.net and dns4.schefczyk.net.

Host names with a single IP:

srv1.b72.com points to 87.128.10.46

srv.b72.com points to 78.94.217.198

srv1.schefczyk.net points to 87.128.89.29

srv.schefczyk.net points to 24.134.7.185

Mail Servers

michael-schefczyk.de is handled by four mail servers: srv1.b72.com, srv.b72.com, srv1.schefczyk.net and srv.schefczyk.net.

michael-schefczyk.de shares mail servers with other domains at least partially; for instance (0x616e616c)yticum.net, venturum.net, do67.net, (0x616e616c)yticum.com and (0x616e616c)yticum.eu.

michael-schefczyk.de - robtex.com