crd04.dk

📜 Historical scan 2026-10-01 05:25:33 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

crd04.dk is a .dk domain served by 2 nameservers (leanna.ns.cloudflare.com, oswald.ns.cloudflare.com). It was registered on 4 July 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.91.86 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.crd04.dk. The zone is not DNSSEC-signed, 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#

2 records 44ms

Nameserver	IP addresses	PTR	ASN / ISP
leanna.ns.cloudflare.com	108.162.194.151 162.159.38.151 172.64.34.151 2606:4700:50::a29f:2697 2803:f800:50::6ca2:c297 2a06:98c1:50::ac40:2297	leanna.ns.cloudflare.com leanna.ns.cloudflare.com leanna.ns.cloudflare.com leanna.ns.cloudflare.com leanna.ns.cloudflare.com leanna.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
oswald.ns.cloudflare.com	108.162.193.218 172.64.33.218 173.245.59.218 2606:4700:58::adf5:3bda 2803:f800:50::6ca2:c1da 2a06:98c1:50::ac40:21da	oswald.ns.cloudflare.com oswald.ns.cloudflare.com oswald.ns.cloudflare.com oswald.ns.cloudflare.com oswald.ns.cloudflare.com oswald.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 55ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.91.86	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.214.118	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 56ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	mail.crd04.dk	62.61.142.111	62.61.142.111.generic-hostname.arrownet.dk	AS15516 DKTV A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.91.86
🔶 Autoconfig	104.21.91.86

🔷 AAAA Records (IPv6)#

2 records 57ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:5b56	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:d676	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 32ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.91.86,172.67.214.118 ech=AEX+DQBBEwAgACAUSGo1qZaFhUBC+pmIAGLkDOUTRzFsv2QmJ6InhhSeIQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:5b56,2606:4700:3036::ac43:d676

📝 TXT Records#

1 records 202ms

TXT Record
v=spf1 a mx -all

✉️ SPF#

Policy	Record (crd04.dk)
-all (hard fail)	v=spf1 a mx -all

📨 DMARC#

Policy	Record (_dmarc.crd04.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:admin@crd04.dk

📬 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 2026-10-08 06:45:50

www	104.21.91.86 172.67.214.118 2606:4700:3031::6815:5b56 2606:4700:3036::ac43:d676 (AS13335) (address records, no CNAME)
www vs bare domain	Same network crd04.dk: 104.21.91.86 172.67.214.118 2606:4700:3031::6815:5b56 2606:4700:3036::ac43:d676 (AS13335) www.crd04.dk: 104.21.91.86 172.67.214.118 2606:4700:3031::6815:5b56 2606:4700:3036::ac43:d676 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 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#

83ms

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

🏷️ SOA#

62ms

Field	Value
Serial	2415139564
Primary NS (MNAME)	leanna.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-03 06:11:01

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2025-07-04
Expires	2027-07-03 (259d)

📋 WHOIS#

⏱️ Lookup Timing#

44ms

55ms

56ms

AAAA

57ms

TXT

202ms

CAA

44ms

HTTPS

32ms

TLSA

91ms

SOA

62ms

MTA-STS

73ms

DNSSEC

83ms

SRV

66ms

Total

636ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 05:34:24	581ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-01 05:25:33 shown	636ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-22 20:45:54	1296ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-16 18:01:44	1886ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-09 16:35:58	1269ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-07 12:57:09	2054ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-28 06:22:09	769ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-22 22:12:20	7222ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-19 12:02:33	961ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-09 02:28:38	969ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-05 17:50:37	5504ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-03 03:58:06	2626ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-25 09:13:21	691ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-21 21:22:29	514ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-19 23:37:11	2710ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-16 22:51:25	403ms	2 NS 2 A 0 MX	🔓 Insecure