sb.dk

Records from scan: 2026-10-03 14:08:32 · 1027ms total · last checked 2026-10-17 01:50 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sb.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 11 March 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 144.76.135.224 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by sb-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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 28ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 31ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
144.76.135.224	3600s	static01.bubbleweb.dk	AS24940	Hetzner Online GmbH	144.76.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records#

1 records 30ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	sb-dk.mail.protection.outlook.com	2a01:111:f403:c967::a 2a01:111:f403:ca04::a 2a01:111:f403:ca09::28 2a01:111:f403:ca21::8 52.101.103.140 52.101.103.143 52.101.181.153 52.101.91.21	mail-cpjpr05cu00102.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-matpr04cu00100.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-matpr05cu00105.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 → 52.98.149.136

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 51ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

3 records 120ms

TXT Record
MS=ms24992065
MS=ms48350655
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (sb.dk)
-all (hard fail)	v=spf1 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#

checked 2026-10-14 21:17:03

www CNAME	sb.dk (all on sb.dk) → 144.76.135.224 (AS24940)
www vs bare domain	Same network sb.dk: 144.76.135.224 (AS24940) www.sb.dk: 144.76.135.224 (AS24940)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 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#

54ms

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

🏷️ SOA#

17ms

Field	Value
Serial	2023061501
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-05 13:59:08

Field	Value
Registrar	CURANET A/S
Registered	1997-03-11
Expires	2027-03-31 (164d)

📋 WHOIS#

⏱️ Lookup Timing#

28ms

31ms

30ms

AAAA

30ms

TXT

120ms

CAA

30ms

HTTPS

26ms

TLSA

667ms

SOA

17ms

MTA-STS

45ms

DNSSEC

54ms

SRV

51ms

Total

1027ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 14:08:32 shown	1027ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-28 00:13:49	853ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 04:29:52	747ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-27 07:42:35	2100ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 02:20:13	759ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 00:24:18	918ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 23:33:15	896ms	2 NS 1 A 1 MX	🔒 Secure