sieb.dk DNS records

🖥️ Nameservers5 records 59ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1pri.webhosting.dk	157.250.160.80	ns1pri.webhosting.dk	AS3342 Cibicom A/S
ns2.mywebtonet.com	157.250.163.66	ns2.mywebtonet.com	AS3342 Cibicom A/S
ns2.webhosting.dk	157.250.163.65	ns2.webhosting.dk	AS3342 Cibicom A/S
ns3.webhosting.dk	2a01:4f9:c010:7e3d::1 95.217.166.205	— ns3.webhosting.dk	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
ns7.webhosting.dk	159.69.216.38 2a01:4f8:1c0c:6cd6::1	ns7.webhosting.dk —	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

🌍 A Records1 records 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
23.236.62.147	600s	147.62.236.23.bc.googleusercontent.com	AS396982	Google LLC	23.236.48.0/20	🇺🇸 United States	Council Bluffs

📧 MX Records1 records 53ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	sieb-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::e 2a01:111:f403:ca04::f 2a01:111:f403:ca09::f 52.101.103.140 52.101.68.27 52.101.73.1 52.101.73.155	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am7pr02cu00203.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
🔶 Autoconfig	tassta.sieb.dk → 5.186.37.87

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 360ms

TXT Record
7ElT0dhcVG4__n-vHKDZDwXgdEgBnajLDf9SGLI0gTs
MS=ms99946283
v=spf1 include:spf.protection.outlook.com include:spf.webhosting.dk -all

✉️ SPF

Policy	Record (sieb.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.webhosting.dk -all

📨 DMARC

Policy	Record (_dmarc.sieb.dk)
p=none (monitor only)	v=DMARC1;p=none;

📬 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
CNAME	_acme-challenge.sieb.dk	tassta.sieb.dk

🔗 TLSA / DANE

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

🔐 DNSSEC79ms

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

🏷️ SOA0ms

Field	Value
Serial	3308161279
Primary NS (MNAME)	ns1pri.webhosting.dk
Responsible (RNAME)	hostmaster@webhosting.dk
Refresh	21600s
Retry	3600s
Expire	14515200s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

59ms

A

45ms

MX

53ms

AAAA

59ms

TXT

360ms

CAA

43ms

HTTPS

40ms

TLSA

500ms

SOA

0ms

MTA-STS

71ms

DNSSEC

79ms

SRV

76ms

Total

1591ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 19:59:45	1591ms	5 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 04:41:22	1836ms	5 NS 1 A 1 MX	🔒 Secure	View
2026-07-23 14:47:30	3410ms	5 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 14:09:59	1238ms	5 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 12:15:40	1300ms	5 NS 1 A 1 MX	🔒 Secure	View