publickey.dk

📜 Historical scan 2026-07-07 01:31:41 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

publickey.dk is a .dk domain served by 2 nameservers (davina.ns.cloudflare.com, matias.ns.cloudflare.com). It was registered on 17 December 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.72.136 is hosted by Cloudflare, Inc. (AS13335). 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 96ms

Nameserver	IP addresses	PTR	ASN / ISP
davina.ns.cloudflare.com	108.162.194.40 162.159.38.40 172.64.34.40 2606:4700:50::a29f:2628 2803:f800:50::6ca2:c228 2a06:98c1:50::ac40:2228	davina.ns.cloudflare.com davina.ns.cloudflare.com davina.ns.cloudflare.com davina.ns.cloudflare.com davina.ns.cloudflare.com davina.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
matias.ns.cloudflare.com	108.162.195.73 162.159.44.73 172.64.35.73 2606:4700:58::a29f:2c49 2803:f800:50::6ca2:c349 2a06:98c1:50::ac40:2349	matias.ns.cloudflare.com matias.ns.cloudflare.com matias.ns.cloudflare.com matias.ns.cloudflare.com matias.ns.cloudflare.com matias.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 262ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.72.136	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.151.36	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 104ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3036::6815:4888	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:9724	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 70ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.72.136,172.67.151.36 ech=AEX+DQBBnQAgACBAg3TQ2niw12qioBYU83HyRBvrQrpDnD8QDUF8yuWcIgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::6815:4888,2606:4700:3037::ac43:9724

📝 TXT Records#

1 records 337ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (publickey.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.publickey.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

📬 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 2026-10-10 05:43:11

www	104.21.72.136 172.67.151.36 2606:4700:3036::6815:4888 2606:4700:3037::ac43:9724 (AS13335) (address records, no CNAME)
www vs bare domain	Same network publickey.dk: 104.21.72.136 172.67.151.36 2606:4700:3036::6815:4888 2606:4700:3037::ac43:9724 (AS13335) www.publickey.dk: 104.21.72.136 172.67.151.36 2606:4700:3036::6815:4888 2606:4700:3037::ac43:9724 (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: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

411ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2408739686
Primary NS (MNAME)	davina.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-06 06:56:03

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2023-12-17
Expires	2030-12-16 (1519d)

📋 WHOIS#

⏱️ Lookup Timing#

96ms

262ms

66ms

AAAA

104ms

TXT

337ms

CAA

91ms

HTTPS

70ms

TLSA

127ms

SOA

0ms

MTA-STS

63ms

DNSSEC

411ms

SRV

98ms

Total

1674ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 05:43:11	495ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-24 20:46:13	1120ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-16 06:47:53	2433ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-14 16:38:52	1282ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-29 02:54:27	938ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-27 23:11:08	1432ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-23 03:43:04	1217ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-31 02:53:45	2765ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-16 13:33:03	2509ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-07 01:31:41 shown	1674ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-02 18:34:55	6673ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 14:59:14	784ms	2 NS 2 A 0 MX	🔓 Insecure