rd-b.dk

📜 Historical scan 2026-09-12 00:35:58 · ← 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) in United States. 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 33ms

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 29ms

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

📧 MX Records#

1 records 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	smtp.google.com	142.250.147.26 142.250.147.27 142.251.9.26 142.251.9.27 2a00:1450:4025:c01::1a 2a00:1450:4025:c01::1b 2a00:1450:4025:c03::1a 2a00:1450:4025:c03::1b	rd-in-f26.1e100.net rd-in-f27.1e100.net rc-in-f26.1e100.net rc-in-f27.1e100.net rd-in-f26.1e100.net rd-in-f27.1e100.net rc-in-f26.1e100.net rc-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

📧 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 197ms

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#

66ms

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

🏷️ SOA#

0ms

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#

33ms

29ms

31ms

AAAA

34ms

TXT

197ms

CAA

30ms

HTTPS

30ms

TLSA

88ms

SOA

0ms

MTA-STS

47ms

DNSSEC

66ms

SRV

50ms

Total

591ms

🕐 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 shown	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	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