openfiber.dk

📜 Historical scan 2026-10-02 19:00:14 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

openfiber.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 21 December 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 83.151.154.44 is hosted by GlobalConnect A/S (AS31027) in Denmark. Mail is handled by openfiber-dk.mail.protection.outlook.com, dk.mx1.mailanyone.net and 3 more. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 65ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.dandomain.dk	185.25.141.3 2a02:2339:4006:109::dd	ns.dandomain.dk ns.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dandomain.dk	2a02:2339:1:108::dd:dd 91.197.248.66	ns2.dandomain.dk ns2.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
83.151.154.44	3600s	—	AS31027	GlobalConnect A/S	83.151.128.0/18	🇩🇰 Denmark	—

📧 MX Records#

5 records 60ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	openfiber-dk.mail.protection.outlook.com	2a01:111:f403:c967::a 2a01:111:f403:ca04::e 2a01:111:f403:ca04::f 2a01:111:f403:ca09::20 52.101.103.36 52.101.73.123 52.101.91.156 52.101.91.21	mail-cpjpr05cu00102.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-maspr04cu00104.inbound.protection.outlook.com mail-matpr05cu00105.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
10	3600s	dk.mx1.mailanyone.net	192.162.219.155 2a01:77c0:1619:4100:6fa6:1315:2bd2:51cd	mx41.electric.net mx11.electric.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
20	3600s	dk.mx2.mx25.net	192.162.219.49	mx41.electric.net	AS16509 Amazon.com, Inc.
30	3600s	dk.mx3.mailanyone.net	192.162.219.255 2a01:77c0:1619:4101:d99:c22:fb4d:290e	mx41.electric.net mx10.electric.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
40	3600s	dk.mx4.mx25.net	192.162.219.255	mx41.electric.net	AS16509 Amazon.com, Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.149.136
🔶 Autoconfig	84.151.154.44

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

8 records 175ms

TXT Record
_globalsign-domain-verification=8HwFg9MCvEfnJKIVu1ezlqy1D4bYm1fHpStgptF47q
_globalsign-domain-verification=9SHUk2kvEA9uqqZu3FXIHF_HTKOm6B-mlK4v1baI-_
_globalsign-domain-verification=aXviHunv8HkMw9bdiAIyVrcvbGYt-j-5cfPmNkVRkG
_globalsign-domain-verification=hgi1R6--MTowFwD4u30oolaPGdcnNdxOEME87ZzmSu
57mhst6bgvbqk0czvrf7jzqd05nrkds0
MS=ms84130760
v=spf1 include:spf.protection.outlook.com include:spf.eu.signature365.net -all
vpe=794dd118

✉️ SPF#

Policy	Record (openfiber.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.eu.signature365.net -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#

4 records 76ms

Flags	Tag	Value
0	issue	digicert.com
0	issue	globalsign.com
0	issuewild	digicert.com
0	issuewild	globalsign.com

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-11 09:25:17

www	84.151.154.44 (AS3320) (address records, no CNAME)
www vs bare domain	Different networks openfiber.dk: 83.151.154.44 (AS31027) www.openfiber.dk: 84.151.154.44 (AS3320) (all like this)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

8 records 402ms

Service / Owner	Type	Cert association
SMTP _25._tcp.dk.mx1.mailanyone.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx1.mailanyone.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx2.mx25.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx2.mx25.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx3.mailanyone.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx3.mailanyone.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx4.mx25.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx4.mx25.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…

🔐 DNSSEC#

121ms

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

🏷️ SOA#

17ms

Field	Value
Serial	2026100201
Primary NS (MNAME)	ns.dandomain.dk
Responsible (RNAME)	hostmaster@dandomain.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-06 20:36:23

Field	Value
Registrar	DANDOMAIN A/S
Registered	2022-12-21
Expires	2026-12-20 (60d)

📋 WHOIS#

⏱️ Lookup Timing#

65ms

33ms

60ms

AAAA

55ms

TXT

175ms

CAA

76ms

HTTPS

52ms

TLSA

402ms

SOA

17ms

MTA-STS

89ms

DNSSEC

121ms

SRV

92ms

Total

1242ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-06 20:12:37	3152ms	2 NS 1 A 5 MX	🔒 Secure
2026-10-05 19:14:26	1148ms	2 NS 1 A 5 MX	🔒 Secure
2026-10-02 19:00:14 shown	1242ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-29 18:37:14	1193ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-15 22:15:50	1492ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-27 00:35:49	1678ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-22 22:25:26	1115ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-17 23:35:57	1560ms	2 NS 1 A 5 MX	⚠️ Bogus