guldbosund.dk DNS records

🖥️ Nameservers2 records 38ms

Nameserver	IP addresses	PTR	ASN / ISP
ns3.hostworld.dk	217.160.222.205 2a02:247a:256:2c00:1::1	ip217.160.222.205.pbiaas.com ns3.hostworld.dk	AS8560 IONOS SE AS8560 IONOS SE
ns4.hostworld.dk	217.160.220.14 2a02:247a:256:2c00::1	ip217-160-220-14.pbiaas.com hostworld.dk	AS8560 IONOS SE AS8560 IONOS SE

🌍 A Records1 records 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.160.220.14	600s	ip217-160-220-14.pbiaas.com	AS8560	IONOS SE	217.160.0.0/16	🇩🇪 Germany	—

📧 MX Records1 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	guldbosund-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca04::c 2a01:111:f403:ca04::d 2a01:111:f403:ca09::3 52.101.181.153 52.101.73.11 52.101.73.22 52.101.73.4	mail-db4pr02cu00307.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-am0pr83cu00404.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.56

🔷 AAAA Records (IPv6)1 records 41ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:247a:256:2c00::1	600s	hostworld.dk	AS8560	IONOS SE	2a02:2478:0:0:0:0:0:0/29	🇩🇪 Germany	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 209ms

TXT Record
v=spf1 +a +mx +ip4:217.160.220.14 +include:spf.protection.outlook.com include:spf.eu.exclaimer.net -all

✉️ SPF

Policy	Record (guldbosund.dk)
-all (hard fail)	v=spf1 +a +mx +ip4:217.160.220.14 +include:spf.protection.outlook.com include:spf.eu.exclaimer.net -all

📨 DMARC

Policy	Record (_dmarc.guldbosund.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@lignum.dk; ruf=mailto:dmarc@lignum.dk

📬 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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.guldbosund.dk	XOlf4uxNw1B5FnP7UG4M0CyJNTIc2-1e8IGEogdhGx4

🔗 TLSA / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC115ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2026082500
Primary NS (MNAME)	ns3.hostworld.dk
Responsible (RNAME)	service@lignum.dk
Refresh	3600s
Retry	1800s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

38ms

A

32ms

MX

39ms

AAAA

41ms

TXT

209ms

CAA

40ms

HTTPS

36ms

TLSA

856ms

SOA

0ms

MTA-STS

48ms

DNSSEC

115ms

SRV

79ms

Total

1474ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 19:53:33	1474ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-25 06:27:08	9929ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-18 01:11:34	1653ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-30 19:30:40	872ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 20:21:34	1016ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-19 22:37:33	4366ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 10:36:58	889ms	2 NS 1 A 1 MX	🔓 Insecure	View