guhring.dk
Last scanned: 2026-08-26 23:03:03  ·  2936ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers5 records   63ms
NameserverIP addressesPTRASN / ISP
ns.gbc.gmbh 49.12.121.173 ns.gbc.gmbh AS24940 Hetzner Online GmbH
ns.gbc.green 192.174.68.104
2001:67c:1bc::104		 ns1.anycastdns.ch
ns.domrobot.com		 AS1921 ipcom GmbH
AS1921 ipcom GmbH
ns.gbc.jetzt 2a02:d500::53
45.87.158.53		 c.xnameserver.de
c.xnameserver.de		 AS48596 InterNetworX Management GmbH
AS48596 InterNetworX Management GmbH
ns.gbc.red 176.97.158.104
2001:67c:10b8::104		 b.xnameserver.de
b.xnameserver.de		 AS207021 ipcom GmbH
AS207021 ipcom GmbH
ns.gbc.systems 212.97.96.154 ns.gbc.systems AS24766 GBC GmbH Internet Service Center Ingenieurgesellschaft fuer Systemsoftware und Kommunikation
🌍 A Records1 records   69ms
IPTTLPTRASNISP / OrgCIDRCountryCity
212.97.109.131 3600s guehring.com AS24766 GBC GmbH Internet Service Center Ingenieurgesellschaft fuer Systemsoftware und Kommunikation 212.97.96.0/19 🇩🇪 Germany —
📧 MX Records2 records   70ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx1.guehring.de 212.97.120.79 mx1.guehring.de AS24766 GBC GmbH Internet Service Center Ingenieurgesellschaft fuer Systemsoftware und Kommunikation
20 3600s mailsecure2.gbc.net 212.97.96.211 mailsecure2.gbc.net AS24766 GBC GmbH Internet Service Center Ingenieurgesellschaft fuer Systemsoftware und Kommunikation
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   272ms
TXT Record
v=spf1 include:spf.guehring.de -all
✉️ SPF
PolicyRecord (guhring.dk)
-all (hard fail) v=spf1 include:spf.guehring.de -all
📨 DMARC
✗ No DMARC record — mail spoofing not restricted
📬 MTA-STS
✗ No MTA-STS policy — SMTP TLS not enforced
📈 TLSRPT
✗ No TLSRPT record — no SMTP TLS failure reporting
📜 CAA Records
✗ No CAA records — any CA may issue certificates
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC132ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2025061708
Primary NS (MNAME)ns.gbc.systems
Responsible (RNAME)support@gbc.net
Refresh3600s
Retry900s
Expire1209600s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
63ms
A
69ms
MX
70ms
AAAA
95ms
TXT
272ms
CAA
61ms
HTTPS
88ms
TLSA
138ms
SOA
0ms
MTA-STS
111ms
DNSSEC
132ms
SRV
138ms
Total
2936ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 23:03:03 2936ms 5 NS 1 A 2 MX 🔓 Insecure View
2026-06-23 06:14:39 1733ms 5 NS 1 A 2 MX 🔓 Insecure View
2026-06-21 10:42:20 1115ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-17 10:07:55 5543ms 5 NS 1 A 2 MX 🔓 Insecure View
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