4bc.dk

📜 Historical scan 2026-10-01 08:09:59 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

4bc.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 29 December 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.158.133.1 is hosted by Cloudflare, Inc. (AS13335) in Germany. Mail is handled by 4bc-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#

2 records 31ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.dandomain.dk	185.25.141.3 2a02:2339:4006:109::dd	ns.dandomain.dk ns.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dandomain.dk	2a02:2339:1:108::dd:dd 91.197.248.66	ns2.dandomain.dk ns2.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.158.133.1	3600s	lovable-app-cd-1-4.p.l5e.io	AS13335	Cloudflare, Inc.	185.158.133.0/24	🇩🇪 Germany	Frankfurt am Main

📧 MX Records#

1 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	60s	4bc-dk.mail.protection.outlook.com	2a01:111:f403:c967::c 2a01:111:f403:ca04::c 2a01:111:f403:ca48::10 2a01:111:f403:ca48::8 52.101.185.114 52.101.209.31 52.101.68.29 52.101.91.153	mail-cpjpr05cu00204.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-miypr05cu00100.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-zrxpr04cu00102.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-matpr04cu00101.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 → 52.98.154.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 128ms

TXT Record
google-site-verification=MnTsZnKlYdNtYVYY_WV4aAgk4NZbd6fF4RkvZ_teW90
v=spf1 include:spf.protection.outlook.com include:_spf.lovable.dev ~all

✉️ SPF#

Policy	Record (4bc.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:_spf.lovable.dev ~all

📨 DMARC#

Policy	Record (_dmarc.4bc.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:jn@4bc.dk

📬 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 11:49:05

www	185.158.133.1 (AS13335) (address records, no CNAME)
www vs bare domain	Same network 4bc.dk: 185.158.133.1 (AS13335) www.4bc.dk: 185.158.133.1 (AS13335)
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

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-4bc-dk._domainkey.4bcdk.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-4bc-dk._domainkey.4bcdk.onmicrosoft.com	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: 2/10 · policy: ~all

error include:_spf.lovable.dev has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

86ms

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

🏷️ SOA#

32ms

Field	Value
Serial	2026052901
Primary NS (MNAME)	ns.dandomain.dk
Responsible (RNAME)	hostmaster@dandomain.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-14 05:22:03

Field	Value
Registrar	DANDOMAIN A/S
Registered	2020-12-29
Expires	2026-12-31 (73d)

🔗 Same registrant#

1 domain

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
setpunkt.dk	DANDOMAIN A/S

📋 WHOIS#

⏱️ Lookup Timing#

31ms

30ms

39ms

AAAA

35ms

TXT

128ms

CAA

40ms

HTTPS

39ms

TLSA

313ms

SOA

32ms

MTA-STS

36ms

DNSSEC

86ms

SRV

43ms

Total

815ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 11:49:05	843ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 08:09:59 shown	815ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 23:27:24	1180ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 17:10:37	817ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-02 01:27:39	1118ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-02 00:28:39	2771ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 12:47:12	803ms	2 NS 1 A 1 MX	🔒 Secure