achernar.dk

📜 Historical scan 2026-07-15 12:05:17 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

achernar.dk is a .dk domain served by 2 nameservers (bjorn.ns.cloudflare.com, kristin.ns.cloudflare.com). It was registered on 2 January 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.5.82 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by route2.mx.cloudflare.net, route1.mx.cloudflare.net and 1 more. The zone is DNSSEC-signed and validates, has no 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 46ms

Nameserver	IP addresses	PTR	ASN / ISP
bjorn.ns.cloudflare.com	108.162.195.98 162.159.44.98 172.64.35.98 2606:4700:58::a29f:2c62 2803:f800:50::6ca2:c362 2a06:98c1:50::ac40:2362	bjorn.ns.cloudflare.com bjorn.ns.cloudflare.com bjorn.ns.cloudflare.com bjorn.ns.cloudflare.com bjorn.ns.cloudflare.com bjorn.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
kristin.ns.cloudflare.com	108.162.192.181 172.64.32.181 173.245.58.181 2606:4700:50::adf5:3ab5 2803:f800:50::6ca2:c0b5 2a06:98c1:50::ac40:20b5	kristin.ns.cloudflare.com kristin.ns.cloudflare.com kristin.ns.cloudflare.com kristin.ns.cloudflare.com kristin.ns.cloudflare.com kristin.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 31ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.5.82	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.133.51	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

3 records 49ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
39	300s	route2.mx.cloudflare.net	162.159.205.17 162.159.205.18 162.159.205.19 2606:4700:f5::10 2606:4700:f5::e 2606:4700:f5::f	route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
73	300s	route1.mx.cloudflare.net	162.159.205.11 162.159.205.12 162.159.205.13 2606:4700:f5::b 2606:4700:f5::c 2606:4700:f5::d	route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
74	300s	route3.mx.cloudflare.net	162.159.205.23 162.159.205.24 162.159.205.25 2606:4700:f5::11 2606:4700:f5::12 2606:4700:f5::13	route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🔷 AAAA Records (IPv6)#

2 records 35ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::ac43:8533	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:552	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=104.21.5.82,172.67.133.51 ech=AEX+DQBBBAAgACAY++elnIjxoSXN74W31/ApqEiCATx3H0sxfZ4NEESVFQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:8533,2606:4700:3037::6815:552

📝 TXT Records#

1 records 240ms

TXT Record
v=spf1 include:_spf.mx.cloudflare.net ~all

✉️ SPF#

Policy	Record (achernar.dk)
~all (soft fail)	v=spf1 include:_spf.mx.cloudflare.net ~all

📨 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 2026-10-17 19:28:35

www	104.21.5.82 172.67.133.51 2606:4700:3035::ac43:8533 2606:4700:3037::6815:552 (AS13335) (address records, no CNAME)
www vs bare domain	Same network achernar.dk: 104.21.5.82 172.67.133.51 2606:4700:3035::ac43:8533 2606:4700:3037::6815:552 (AS13335) www.achernar.dk: 104.21.5.82 172.67.133.51 2606:4700:3035::ac43:8533 2606:4700:3037::6815:552 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

9 records 77ms

Service / Owner	Type	Cert association
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…

🔐 DNSSEC#

50ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2409595395
Primary NS (MNAME)	bjorn.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-13 19:47:14

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2021-01-02
Expires	2028-01-31 (469d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

46ms

31ms

49ms

AAAA

35ms

TXT

240ms

CAA

31ms

HTTPS

32ms

TLSA

77ms

SOA

0ms

MTA-STS

62ms

DNSSEC

50ms

SRV

83ms

Total

1751ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 13:57:08	886ms	2 NS 2 A 3 MX	🔒 Secure
2026-09-29 08:16:36	1102ms	2 NS 2 A 3 MX	🔒 Secure
2026-09-28 07:41:07	1329ms	2 NS 2 A 3 MX	🔒 Secure
2026-09-26 07:15:53	1117ms	2 NS 2 A 3 MX	🔒 Secure
2026-09-03 19:03:59	1642ms	2 NS 2 A 3 MX	🔒 Secure
2026-08-30 21:56:26	1226ms	2 NS 2 A 3 MX	🔒 Secure
2026-08-09 04:54:47	1936ms	2 NS 2 A 3 MX	🔒 Secure
2026-08-01 07:25:47	2178ms	2 NS 2 A 3 MX	🔒 Secure
2026-07-15 12:05:17 shown	1751ms	2 NS 2 A 3 MX	🔒 Secure
2026-07-03 19:25:20	1743ms	2 NS 2 A 3 MX	🔒 Secure
2026-06-21 18:52:42	1807ms	2 NS 2 A 3 MX	🔒 Secure
2026-06-16 12:38:01	3201ms	2 NS 2 A 3 MX	🔒 Secure