rblkm.dk

📜 Historical scan 2026-10-08 11:06:24 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rblkm.dk is a .dk domain served by 5 nameservers (ns1.brandshelter.com, ns2.brandshelter.de, ns3.brandshelter.info and 2 more). It was registered on 26 February 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.22.145.121 is hosted by Amazon.com, Inc. (AS16509) in Germany. Mail is handled by rblkm-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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#

5 records 121ms

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 AS1921 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 AS1921 ipcom GmbH

🌍 A Records#

2 records 145ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.22.145.121	600s	relay.mail-forwarder.io	AS16509	Amazon.com, Inc.	5.22.145.0/24	🇩🇪 Germany	—
5.22.145.16	600s	relay.mail-forwarder.io	AS16509	Amazon.com, Inc.	5.22.145.0/24	🇩🇪 Germany	—

📧 MX Records#

1 records 72ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	rblkm-dk.mail.protection.outlook.com	2a01:111:f403:ca04::f 2a01:111:f403:ca21::8 2a01:111:f403:ca21::e 2a01:111:f403:ca48::c 52.101.103.143 52.101.68.29 52.101.73.153 52.101.91.21	mail-db7pr03cu00507.inbound.protection.outlook.com mail-matpr04cu00100.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00401.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 → 52.98.154.136

🔷 AAAA Records (IPv6)#

2 records 147ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a00:18e0:5:2:7577:4e4d:413b:f507	600s	relay.mail-forwarder.io	AS16509	Amazon.com, Inc.	2a00:18e0:5:0:0:0:0:0/48	🇩🇪 Germany	—
2a00:18e0:5:3:dfe2:c743:85aa:61bc	600s	relay.mail-forwarder.io	AS16509	Amazon.com, Inc.	2a00:18e0:5:0:0:0:0:0/48	🇩🇪 Germany	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 367ms

TXT Record
MS=ms48915640
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.rblkm.dk)
p=reject	v=DMARC1; p=reject; sp=reject;

📬 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 2026-10-24 12:16:56

www	5.22.145.121 5.22.145.16 2a00:18e0:5:2:7577:4e4d:413b:f507 2a00:18e0:5:3:dfe2:c743:85aa:61bc (AS16509) (address records, no CNAME)
www vs bare domain	Same network rblkm.dk: 5.22.145.121 5.22.145.16 2a00:18e0:5:2:7577:4e4d:413b:f507 2a00:18e0:5:3:dfe2:c743:85aa:61bc (AS16509) www.rblkm.dk: 5.22.145.121 5.22.145.16 2a00:18e0:5:2:7577:4e4d:413b:f507 2a00:18e0:5:3:dfe2:c743:85aa:61bc (AS16509)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
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#

189ms

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

🏷️ SOA#

126ms

Field	Value
Serial	2025035780
Primary NS (MNAME)	ns1.brandshelter.com
Responsible (RNAME)	tech@brandshelter.com
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-09 23:14:32

Field	Value
Registrar	Key-Systems GmbH
Registered	2005-02-26
Expires	2027-02-28 (124d)

📋 WHOIS#

⏱️ Lookup Timing#

121ms

145ms

72ms

AAAA

147ms

TXT

367ms

CAA

102ms

HTTPS

102ms

TLSA

347ms

SOA

126ms

MTA-STS

163ms

DNSSEC

189ms

SRV

403ms

Total

1546ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-24 12:16:56	711ms	5 NS 2 A 1 MX	🔒 Secure
2026-10-23 00:03:05	2900ms	5 NS 2 A 1 MX	🔒 Secure
2026-10-21 02:35:27	1255ms	5 NS 2 A 1 MX	🔒 Secure
2026-10-15 15:03:40	1548ms	5 NS 2 A 1 MX	🔒 Secure
2026-10-08 11:06:24 shown	1546ms	5 NS 2 A 1 MX	🔒 Secure
2026-10-01 06:24:51	1818ms	5 NS 2 A 1 MX	🔒 Secure
2026-09-24 03:58:16	1450ms	5 NS 2 A 1 MX	🔒 Secure
2026-09-19 23:35:36	1318ms	5 NS 2 A 1 MX	🔒 Secure
2026-09-12 21:25:49	1145ms	5 NS 2 A 1 MX	🔒 Secure
2026-09-06 19:31:10	2634ms	5 NS 2 A 1 MX	🔒 Secure
2026-08-27 10:50:11	1612ms	5 NS 2 A 1 MX	🔒 Secure
2026-08-20 11:07:43	2026ms	5 NS 2 A 1 MX	🔒 Secure
2026-08-14 02:08:27	1663ms	5 NS 2 A 1 MX	🔒 Secure
2026-08-09 15:29:24	1506ms	5 NS 2 A 1 MX	🔒 Secure
2026-08-03 09:50:54	3280ms	5 NS 2 A 1 MX	🔒 Secure
2026-07-23 20:58:42	10164ms	5 NS 2 A 1 MX	🔒 Secure
2026-07-18 13:48:42	9690ms	5 NS 2 A 1 MX	🔒 Secure
2026-07-09 15:41:01	11935ms	5 NS 2 A 1 MX	🔒 Secure
2026-07-03 10:41:58	1234ms	5 NS 2 A 1 MX	🔒 Secure
2026-07-01 10:06:24	1452ms	5 NS 2 A 1 MX	🔒 Secure
2026-06-30 17:35:36	1252ms	5 NS 2 A 1 MX	🔒 Secure
2026-06-23 18:46:39	2084ms	5 NS 2 A 1 MX	🔒 Secure
2026-06-18 00:21:42	1190ms	5 NS 2 A 1 MX	🔒 Secure