guco.dk DNS records

🖥️ Nameservers3 records 47ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.contabo.net	2a02:c207:ff00:1200::1 5.180.150.13	— ns1.contabo.net	AS51167 Contabo GmbH AS51167 Contabo GmbH
ns2.contabo.net	195.179.224.10 2a02:c202:5028:1200::1	ns2.contabo.net —	AS51167 Contabo GmbH AS51167 Contabo GmbH
ns3.contabo.net	209.126.15.15 2605:a140:5028:1200::1	ns3.contabo.net —	AS40021 Contabo Inc. AS40021 Contabo Inc.

🌍 A Records1 records 47ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
161.97.117.158	86400s	server.happyclient.dk	AS51167	Contabo GmbH	161.97.64.0/18	🇫🇷 France	Lauterbourg

📧 MX Records1 records 47ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	86400s	mail.guco.dk	161.97.117.158	server.happyclient.dk	AS51167 Contabo GmbH

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	161.97.117.158
🔶 Autoconfig	161.97.117.158

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 289ms

TXT Record
v=spf1 +mx +a +ip4:161.97.117.158 ~all

✉️ SPF

Policy	Record (guco.dk)
~all (soft fail)	v=spf1 +mx +a +ip4:161.97.117.158 ~all

📨 DMARC

Policy	Record (_dmarc.guco.dk)
p=quarantine	v=DMARC1;p=quarantine;

📬 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)

🔐 DNSSEC115ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	1788152835
Primary NS (MNAME)	ns1.contabo.net
Responsible (RNAME)	hostmaster@contabo.de
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

47ms

A

47ms

MX

47ms

AAAA

40ms

TXT

289ms

CAA

137ms

HTTPS

42ms

TLSA

85ms

SOA

0ms

MTA-STS

70ms

DNSSEC

115ms

SRV

185ms

Total

806ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 07:07:16	806ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-29 07:57:04	1331ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-28 01:27:01	902ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-26 18:56:32	1127ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-25 13:29:20	2168ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-24 13:14:58	1654ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-23 05:37:16	1192ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-22 05:24:44	5797ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-21 05:07:40	2530ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-20 04:15:30	5331ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-19 01:55:29	9906ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-17 09:47:33	4309ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-16 04:14:05	3235ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-14 11:43:26	953ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-13 08:27:40	8930ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-11 17:38:29	1311ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-09 20:03:26	2840ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-07 11:24:16	9050ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-02 09:05:46	930ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-01 05:11:39	1098ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-07-30 13:35:37	1021ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-07-28 21:21:34	9766ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-07-27 16:38:38	1014ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-07-26 16:03:37	1037ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-07-25 15:33:23	8964ms	3 NS 1 A 1 MX	🔓 Insecure	View