cbbt.dk

📜 Historical scan 2026-09-20 19:00:54 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cbbt.dk is a .dk domain served by 2 nameservers (ns3.hostworld.dk, ns4.hostworld.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.160.220.14 is hosted by IONOS SE (AS8560) in Germany. Mail is handled by cbbt-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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#

2 records 42ms

Nameserver	IP addresses	PTR	ASN / ISP
ns3.hostworld.dk	217.160.222.205 2a02:247a:256:2c00:1::1	ip217.160.222.205.pbiaas.com ns3.hostworld.dk	AS8560 IONOS SE AS8560 IONOS SE
ns4.hostworld.dk	217.160.220.14 2a02:247a:256:2c00::1	ip217-160-220-14.pbiaas.com hostworld.dk	AS8560 IONOS SE AS8560 IONOS SE

🌍 A Records#

1 records 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.160.220.14	600s	ip217-160-220-14.pbiaas.com	AS8560	IONOS SE	217.160.0.0/16	🇩🇪 Germany	—

📧 MX Records#

1 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	cbbt-dk.mail.protection.outlook.com	2a01:111:f403:c967::c 2a01:111:f403:ca04::10 2a01:111:f403:ca04::6 2a01:111:f403:ca09::22 52.101.181.156 52.101.68.15 52.101.68.36 52.101.91.162	mail-cpjpr05cu00204.inbound.protection.outlook.com mail-dbapr03cu00100.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-am7pr02cu00302.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-matpr04cu00302.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
🔶 Autoconfig	217.160.220.14

🔷 AAAA Records (IPv6)#

1 records 50ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:247a:256:2c00::1	600s	hostworld.dk	AS8560	IONOS SE	2a02:2478:0:0:0:0:0:0/29	🇩🇪 Germany	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 91ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	cpanelemaildiscovery.cpanel.net

📝 TXT Records#

1 records 250ms

TXT Record
v=spf1 +a +mx +ip4:217.160.220.14 +ip4:139.162.165.153 +include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (cbbt.dk)
-all (hard fail)	v=spf1 +a +mx +ip4:217.160.220.14 +ip4:139.162.165.153 +include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.cbbt.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 2026-10-10 12:29:00

www CNAME	cbbt.dk (all on cbbt.dk) → 217.160.220.14 2a02:247a:256:2c00::1 (AS8560)
www vs bare domain	Same network cbbt.dk: 217.160.220.14 2a02:247a:256:2c00::1 (AS8560) www.cbbt.dk: 217.160.220.14 2a02:247a:256:2c00::1 (AS8560)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	RSA · ~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: 3/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.cbbt.dk	Y8RQxnNX1-926t7r7SPMgicBt69noyXj_eQXXcWRiQA

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2059ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2026090601
Primary NS (MNAME)	ns3.hostworld.dk
Responsible (RNAME)	service@lignum.dk
Refresh	3600s
Retry	1800s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

42ms

48ms

54ms

AAAA

50ms

TXT

250ms

CAA

55ms

HTTPS

63ms

TLSA

178ms

SOA

0ms

MTA-STS

81ms

DNSSEC

2059ms

SRV

91ms

Total

2656ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 05:26:26	1048ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-20 19:00:54 shown	2656ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-11 09:28:21	10182ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-08 22:28:38	1848ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-27 00:45:41	1198ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-09 01:47:45	3464ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-02 15:23:13	1668ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-25 00:50:21	921ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-24 07:22:12	1205ms	2 NS 1 A 1 MX	❓ Unknown
2026-06-16 19:50:45	685ms	2 NS 1 A 1 MX	🔓 Insecure