fbu.dk

Records from scan: 2026-09-30 14:57:47 · 1276ms total · last checked 2026-10-17 07:21 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fbu.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 9 February 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.92 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by fbu-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#

4 records 37ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.92	3600s	linux214.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records#

1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	fbu-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::b 2a01:111:f403:ca04::d 2a01:111:f403:ca48::a 52.101.181.156 52.101.68.25 52.101.68.8 52.101.91.153	mail-dbapr03cu00100.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-matpr04cu00101.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 → 40.104.116.24
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 49ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 100ms

TXT Record
MS=ms32435103
v=spf1 include:spf.protection.outlook.com include:spf.simply.com ~all

✉️ SPF#

Policy	Record (fbu.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:spf.simply.com ~all

📨 DMARC#

Policy	Record (_dmarc.fbu.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 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 17:39:19

www	93.191.156.92 (AS48854) (address records, no CNAME)
www vs bare domain	Same network fbu.dk: 93.191.156.92 (AS48854) www.fbu.dk: 93.191.156.92 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

117ms

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

🏷️ SOA#

33ms

Field	Value
Serial	2026093000
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-09-30 15:42:27

Field	Value
Registrar	Simply.com A/S
Registered	1999-02-09
Expires	2027-03-31 (164d)

📋 WHOIS#

⏱️ Lookup Timing#

37ms

35ms

AAAA

40ms

TXT

100ms

CAA

26ms

HTTPS

29ms

TLSA

590ms

SOA

33ms

MTA-STS

56ms

DNSSEC

117ms

SRV

49ms

Total

1276ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 14:57:47 shown	1276ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-03 09:07:42	1203ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-27 23:09:05	1177ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-28 15:02:34	1594ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-26 01:33:37	926ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-19 21:25:44	4382ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-17 09:51:35	584ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-17 09:37:24	1865ms	4 NS 1 A 1 MX	🔒 Secure