rd-b.dk

📜 Historical scan 2026-06-20 15:36:38 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rd-b.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 12 September 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 162.159.135.42 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by smtp.google.com. The zone is DNSSEC-signed and validates, has no 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 175ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 319ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.159.135.42	3600s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	—	—

📧 MX Records#

1 records 239ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	smtp.google.com	142.251.1.26 142.251.1.27 173.194.221.26 173.194.221.27 173.194.222.27 2a00:1450:4010:c0a::1a 2a00:1450:4010:c0a::1a 2a00:1450:4010:c0a::1b 2a00:1450:4010:c0a::1b 2a00:1450:4010:c1e::1a 2a00:1450:4010:c1e::1b	lb-in-f26.1e100.net lb-in-f27.1e100.net lm-in-f26.1e100.net lm-in-f27.1e100.net lo-in-f27.1e100.net lm-in-x1a.1e100.net lm-in-f26.1e100.net lm-in-x1b.1e100.net lm-in-f27.1e100.net lb-in-f26.1e100.net lb-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	162.159.135.42
🔶 Autoconfig	162.159.135.42

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 576ms

TXT Record
google-site-verification=-r0Z7HP3nd9Ui81UQjKhBXgCA7wRBRj8d6Dzb82Oaw8
google-site-verification=7zaM-Uj6kjpjcC8OU1ZXwROvN696ieTRw52FTQ4qI6U

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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#

latest probe, not this scan · checked 2026-10-09 08:01:27

www CNAME	rd-b.dk (all on rd-b.dk) → 162.159.135.42 (AS13335)
www vs bare domain	Same network rd-b.dk: 162.159.135.42 (AS13335) www.rd-b.dk: 162.159.135.42 (AS13335)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.rd-b.dk	rd-b.dk.kinstavalidation.app

🔗 TLSA / DANE#

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

🔐 DNSSEC#

466ms

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

🏷️ SOA#

193ms

Field	Value
Serial	2025111704
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-12 07:23:29

Field	Value
Registrar	CURANET A/S
Registered	2025-09-12
Expires	2027-09-11 (326d)

🔗 Same registrant#

3 domains

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
herlevkloakservice.dk	Simply.com A/S
rdvvs.dk	Punktum dk A/S (direct)
rdvvsogbyg.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

175ms

319ms

239ms

AAAA

156ms

TXT

576ms

CAA

250ms

HTTPS

255ms

TLSA

166ms

SOA

193ms

MTA-STS

188ms

DNSSEC

466ms

SRV

331ms

Total

2218ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 08:01:27	569ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-06 21:05:42	1653ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-12 00:35:58	591ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 23:29:00	702ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 15:36:38 shown	2218ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 10:01:37	716ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 17:45:34	699ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 17:02:12	6679ms	2 NS 1 A 1 MX	🔒 Secure