fbu.dk

📜 Historical scan 2026-06-17 09:37:24 · ← Latest scan

⬇ 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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records 148ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	—	—	—
ns2.simply.com	—	—	—
ns3.simply.com	—	—	—
ns4.simply.com	—	—	—

🌍 A Records#

1 records 185ms

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

📧 MX Records#

1 records 130ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	fbu-dk.mail.protection.outlook.com	52.101.68.29 52.101.73.11 52.101.73.153 52.101.73.2	mail-dbapr03cu00105.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 311ms

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#

latest probe, not this scan · 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#

325ms

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

🏷️ SOA#

203ms

Field	Value
Serial	2025042300
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#

148ms

185ms

130ms

AAAA

168ms

TXT

311ms

CAA

207ms

HTTPS

198ms

TLSA

297ms

SOA

203ms

MTA-STS

228ms

DNSSEC

325ms

SRV

0ms

Total

1865ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 14:57:47	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 shown	1865ms	4 NS 1 A 1 MX	🔒 Secure