b6.dk

📜 Historical scan 2026-08-31 19:55:28 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

b6.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 16 February 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.237 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by b6-dk.mail.protection.outlook.com. 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#

4 records 40ms

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 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.237	600s	linux31.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	455s	b6-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca04::9 2a01:111:f403:ca09:: 2a01:111:f403:ca09::9 52.101.103.137 52.101.73.22 52.101.73.28 52.101.73.30	mail-db4pr02cu00307.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com mail-am7pr05cu00306.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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 167ms

TXT Record
v=spf1 ip4:86.52.52.167 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (b6.dk)
-all (hard fail)	v=spf1 ip4:86.52.52.167 include:spf.protection.outlook.com -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#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-12 14:39:55

www	185.21.41.237 (AS48854) (address records, no CNAME)
www vs bare domain	Same network b6.dk: 185.21.41.237 (AS48854) www.b6.dk: 185.21.41.237 (AS48854)
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

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector2	selector2-b6-dk._domainkey.b6gruppen.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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

107ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026062500
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 2026-10-12 15:03:21

Field	Value
Registrar	Simply.com A/S
Registered	1998-02-16
Expires	2027-03-31 (165d)

🔗 Same registrant#

2 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).

Domain	Registrar
b6furniture.dk	Simply.com A/S
b6gruppen.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

40ms

45ms

44ms

AAAA

41ms

TXT

167ms

CAA

81ms

HTTPS

49ms

TLSA

311ms

SOA

0ms

MTA-STS

82ms

DNSSEC

107ms

SRV

80ms

Total

825ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 14:39:55	1498ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-01 20:29:39	2660ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-25 19:32:58	848ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-31 19:55:28 shown	825ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-26 20:10:20	2054ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-24 15:05:38	1094ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-24 09:16:49	906ms	4 NS 1 A 1 MX	⚠️ Bogus
2026-06-24 02:49:37	1162ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 13:57:25	947ms	4 NS 1 A 1 MX	🔒 Secure