buo.dk

📜 Historical scan 2026-10-01 03:39:07 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

buo.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 8 May 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 136.243.166.204 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by buo-dk.mail.eo.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#

3 records 27ms

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

🌍 A Records#

1 records 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
136.243.166.204	3600s	dedi5036.your-server.de	AS24940	Hetzner Online GmbH	136.243.0.0/16	🇩🇪 Germany	Nuremberg

📧 MX Records#

1 records 24ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	buo-dk.mail.eo.outlook.com	2a01:111:f403:ca04::f 2a01:111:f403:ca09::26 2a01:111:f403:ca3c::6 2a01:111:f403:ca48::8 52.101.103.162 52.101.103.36 52.101.185.21 52.101.68.21	mail-db7pr03cu00507.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-zrxpr04cu00106.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-miypr03cu00202.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-zrxpr05cu00105.inbound.protection.outlook.com mail-db4pr02cu00205.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 → 40.104.116.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 163ms

TXT Record
MS=ms68823501
v=spf1 include:spf.protection.outlook.com ip4:87.53.121.149 ip4:93.90.117.138 a:relay164.mysmtp.mobi include:servers.mcsv.net include:web.shared.mysmtp.com -all

✉️ SPF#

Policy	Record (buo.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:87.53.121.149 ip4:93.90.117.138 a:relay164.mysmtp.mobi include:servers.mcsv.net include:web.shared.mysmtp.com -all

📨 DMARC#

Policy	Record (_dmarc.buo.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:fejl@buo.dk, mailto:fejl@buo.dk; pct=100; adkim=s; aspf=s

📬 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 2026-10-12 15:38:45

www	136.243.166.204 (AS24940) (address records, no CNAME)
www vs bare domain	Same network buo.dk: 136.243.166.204 (AS24940) www.buo.dk: 136.243.166.204 (AS24940)
Wildcard	No
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: 7/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

62ms

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

🏷️ SOA#

31ms

Field	Value
Serial	2026012101
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 2026-10-17 05:52:08

Field	Value
Registrar	Simply.com A/S
Registered	2001-05-08
Expires	2027-06-30 (254d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

27ms

40ms

24ms

AAAA

26ms

TXT

163ms

CAA

30ms

HTTPS

33ms

TLSA

87ms

SOA

31ms

MTA-STS

37ms

DNSSEC

62ms

SRV

55ms

Total

578ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 15:38:44	1239ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-09 09:35:14	1559ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-03 04:09:17	1739ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-01 03:39:07 shown	578ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-26 17:16:05	4867ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-19 23:30:27	8294ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-16 17:46:03	1598ms	3 NS 1 A 1 MX	🔒 Secure