fiberlan.dk

Records from scan: 2026-10-03 10:44:17 · 1392ms total · last checked 2026-10-16 09:25 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fiberlan.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.246 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by fiberlan-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 40ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.246	3600s	linux5.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	fiberlan-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca09::22 2a01:111:f403:ca09::24 2a01:111:f403:ca48::e 52.101.103.137 52.101.103.140 52.101.68.12 52.101.91.162	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-am7pr02cu00302.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-miypr03cu00206.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-matpr04cu00302.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 → 52.98.154.152
🔶 Autoconfig	185.21.40.246

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 63ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

5 records 178ms

TXT Record
apple-domain-verification=MnS5w73cGwvOoms9
google-site-verification=fy8CMH84LxcQa3-c9xcW44DAYnW48U704xHWVV_0e9w
google-site-verification=KGYg29pjvIwucSTH1464sPXlK9ogzjl11kcCvt5tXP8
MS=ms24632980
v=spf1 ip4:85.27.199.79 ip4:49.12.102.67 ip4:212.130.93.160 ip4:212.130.93.191 ip4:212.130.93.100 include:spf.protection.outlook.com include:_spf.google.com include:spf-eu.emailsignatures365.com include:spf.dandomain.dk include:sendgrid.net -all

✉️ SPF#

Policy	Record (fiberlan.dk)
-all (hard fail)	v=spf1 ip4:85.27.199.79 ip4:49.12.102.67 ip4:212.130.93.160 ip4:212.130.93.191 ip4:212.130.93.100 include:spf.protection.outlook.com include:_spf.google.com include:spf-eu.emailsignatures365.com include:spf.dandomain.dk include:sendgrid.net -all

📨 DMARC#

Policy	Record (_dmarc.fiberlan.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:itdrift@fiberlan.dk; ruf=mailto:itdrift@fiberlan.dk; pct=100;

📬 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

🧩 Web & zone#

checked 2026-10-08 14:32:15

www	185.21.40.246 (AS48854) (address records, no CNAME)
www vs bare domain	Same network fiberlan.dk: 185.21.40.246 (AS48854) www.fiberlan.dk: 185.21.40.246 (AS48854)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

4 found

Selector	CNAME	Key
s1	s1.domainkey.u20431589.wl090.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u20431589.wl090.sendgrid.net	RSA · ~2048 bit
selector1	selector1-fiberlan-dk._domainkey.fiberlan.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-fiberlan-dk._domainkey.fiberlan.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 8/10 · policy: -all

warn 8 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

75ms

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

🏷️ SOA#

52ms

Field	Value
Serial	2026092701
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

40ms

35ms

37ms

AAAA

28ms

TXT

178ms

CAA

45ms

HTTPS

31ms

TLSA

923ms

SOA

52ms

MTA-STS

54ms

DNSSEC

75ms

SRV

63ms

Total

1392ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 10:44:17 shown	1392ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 23:19:38	1654ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-17 10:17:02	2541ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-03 18:41:43	1589ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 18:33:01	878ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 16:41:47	885ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-17 13:55:38	5784ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-28 14:25:08	1267ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-14 19:46:00	1154ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-03 14:04:31	1137ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-30 20:08:47	1461ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 01:38:21	1170ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 09:30:15	1111ms	2 NS 1 A 1 MX	🔒 Secure