rbfp.dk DNS records

🖥️ Nameservers5 records 79ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.brandshelter.com	193.227.117.9 2a04:2b00:14cc::9	ns1.brandshelter.com —	AS1921 ipcom GmbH AS1921 ipcom GmbH
ns2.brandshelter.de	194.50.187.11 2a04:2b00:14dd::11	ns2.brandshelter.de ns11.j.centralnic-dns.com	AS207021 ipcom GmbH AS207021 ipcom GmbH
ns3.brandshelter.info	194.0.182.12 2a04:2b00:14ee::12	ns3.brandshelter.info ns12.k.centralnic-dns.com	AS1921 ipcom GmbH AS1921 ipcom GmbH
ns4.brandshelter.net	193.227.117.10 2a04:2b00:14cc::10	ns4.brandshelter.net ns10.i.centralnic-dns.com	AS1921 ipcom GmbH AS1921 ipcom GmbH
ns5.brandshelter.us	194.50.187.14 2a04:2b00:14dd::14	ns5.brandshelter.us ns14.j.centralnic-dns.com	AS207021 ipcom GmbH AS207021 ipcom GmbH

🌍 A Records

🌍

No A records found

📧 MX Records1 records 75ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	rbfp-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::6 2a01:111:f403:ca04::8 2a01:111:f403:ca09::f 52.101.103.140 52.101.68.3 52.101.73.155 52.101.73.22	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am7pr02cu00203.inbound.protection.outlook.com mail-am7pr05cu00106.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 Records1 records 190ms

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

📝 TXT Records3 records 291ms

TXT Record
docusign=72868e14-91f3-460b-9a7f-54605a3c083c
MS=ms94455255
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (rbfp.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.rbfp.dk)
p=quarantine	v=DMARC1;p=quarantine;pct=100

📬 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

🔗 TLSA / DANE

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

🔐 DNSSEC204ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA0ms

Field	Value
Serial	2025114065
Primary NS (MNAME)	ns1.brandshelter.com
Responsible (RNAME)	tech@brandshelter.com
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

79ms

A

89ms

MX

75ms

AAAA

103ms

TXT

291ms

CAA

84ms

HTTPS

140ms

TLSA

1049ms

SOA

0ms

MTA-STS

102ms

DNSSEC

204ms

SRV

190ms

Total

2213ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 14:57:48	2213ms	5 NS 0 A 1 MX	🔒 Secure	View
2026-08-20 12:52:03	12002ms	5 NS 0 A 1 MX	🔒 Secure	View
2026-08-14 14:30:19	2264ms	5 NS 0 A 1 MX	🔒 Secure	View
2026-08-09 07:22:15	18388ms	5 NS 0 A 1 MX	🔒 Secure	View
2026-08-08 00:52:40	2004ms	5 NS 0 A 1 MX	🔒 Secure	View
2026-08-02 23:24:26	1595ms	5 NS 0 A 1 MX	🔒 Secure	View
2026-07-23 08:46:40	1789ms	5 NS 0 A 1 MX	🔒 Secure	View
2026-07-17 01:24:43	1323ms	5 NS 0 A 1 MX	🔒 Secure	View
2026-07-09 03:36:04	10558ms	5 NS 0 A 1 MX	🔒 Secure	View
2026-07-03 13:14:33	2733ms	5 NS 0 A 1 MX	🔒 Secure	View
2026-06-28 06:09:20	956ms	5 NS 0 A 1 MX	🔒 Secure	View
2026-06-21 19:38:56	1753ms	5 NS 0 A 1 MX	🔒 Secure	View
2026-06-21 06:21:23	1061ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 06:06:02	820ms	5 NS 0 A 1 MX	🔒 Secure	View
2026-06-18 12:06:08	1078ms	5 NS 0 A 1 MX	🔒 Secure	View
2026-06-17 19:13:34	941ms	5 NS 0 A 1 MX	🔒 Secure	View