prbc.dk

Records from scan: 2026-10-08 15:06:47 · 682ms total · last checked 2026-10-17 04:46 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

prbc.dk is a .dk domain served by 3 nameservers (ns1.c-system.dk, ns2.c-system.dk, ns3.c-system.dk). It was registered on 5 November 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 49.12.60.83 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by prbc-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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#

3 records 51ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.c-system.dk	49.12.60.90	ns1.c-system.dk	AS24940 Hetzner Online GmbH
ns2.c-system.dk	49.12.60.94	ns2.c-system.dk	AS24940 Hetzner Online GmbH
ns3.c-system.dk	130.162.220.97	—	AS31898 Oracle Corporation

🌍 A Records#

1 records 51ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
49.12.60.83	38400s	web01.c-system.dk	AS24940	Hetzner Online GmbH	49.12.0.0/15	🇩🇪 Germany	—

📧 MX Records#

1 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	38400s	prbc-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::e 2a01:111:f403:ca09::a 2a01:111:f403:ca38::8 52.101.68.15 52.101.68.27 52.101.73.153 52.101.73.155	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-am7pr02cu00203.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 → 40.104.116.56

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 100ms

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

📝 TXT Records#

2 records 295ms

TXT Record
MS=ms87845232
v=spf1 a:web01.c-system.dk include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (prbc.dk)
-all (hard fail)	v=spf1 a:web01.c-system.dk 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 2026-10-08 15:06:47

www CNAME	prbc.dk (all on prbc.dk) → 49.12.60.83 (AS24940)
www vs bare domain	Same network prbc.dk: 49.12.60.83 (AS24940) www.prbc.dk: 49.12.60.83 (AS24940)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-prbc-dk._domainkey.prbcdk.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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

81ms

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

🏷️ SOA#

58ms

Field	Value
Serial	2017111613
Primary NS (MNAME)	ns1.c-system.dk
Responsible (RNAME)	admin@c-system.dk
Refresh	10800s
Retry	3600s
Expire	1309600s
Minimum (neg-cache TTL)	38400s

📋 Registration#

WHOIS fetched 2026-10-07 20:33:48

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2017-11-05
Expires	2026-11-30 (44d)

📋 WHOIS#

⏱️ Lookup Timing#

51ms

AAAA

51ms

TXT

295ms

CAA

44ms

HTTPS

63ms

TLSA

86ms

SOA

58ms

MTA-STS

80ms

DNSSEC

81ms

SRV

100ms

Total

682ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 15:06:47 shown	682ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-28 00:13:54	1459ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-27 05:33:15	1738ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-25 16:09:45	1718ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-17 11:33:46	1092ms	3 NS 1 A 1 MX	🔓 Insecure