skyfi.dk

📜 Historical scan 2026-06-18 00:22:15 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

skyfi.dk is a .dk domain served by 2 nameservers (clark.ns.cloudflare.com, itzel.ns.cloudflare.com). It was registered on 30 March 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.79.243 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com and 2 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 65ms

Nameserver	IP addresses	PTR	ASN / ISP
clark.ns.cloudflare.com	108.162.193.87 172.64.33.87 173.245.59.87 2606:4700:58::adf5:3b57 2803:f800:50::6ca2:c157 2a06:98c1:50::ac40:2157	clark.ns.cloudflare.com clark.ns.cloudflare.com clark.ns.cloudflare.com clark.ns.cloudflare.com clark.ns.cloudflare.com clark.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
itzel.ns.cloudflare.com	108.162.194.42 162.159.38.42 172.64.34.42 2606:4700:50::a29f:262a 2803:f800:50::6ca2:c22a 2a06:98c1:50::ac40:222a	itzel.ns.cloudflare.com itzel.ns.cloudflare.com itzel.ns.cloudflare.com itzel.ns.cloudflare.com itzel.ns.cloudflare.com itzel.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 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.79.243	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.172.7	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

4 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx1.pub.mailpod11-cph3.one.com	104.37.34.230	mx1.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	—	mx2.pub.mailpod11-cph3.one.com	104.37.34.231	mx2.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	—	mx3.pub.mailpod11-cph3.one.com	104.37.34.232	mx3.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	—	mx4.pub.mailpod11-cph3.one.com	104.37.34.233	mx4.pub.mailpod11-cph3.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)#

2 records 44ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::6815:4ff3	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:ac07	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 75ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.79.243,172.67.172.7 ech=AEX+DQBBXQAgACCKtZprehaOOcZuI8UfRINUiU1H1hp2/GZSIeULHEiwSAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:4ff3,2606:4700:3034::ac43:ac07

📝 TXT Records#

📝

No TXT records found

✉️ 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 2026-10-07 20:48:03

www	104.21.79.243 172.67.172.7 2606:4700:3030::6815:4ff3 2606:4700:3034::ac43:ac07 (AS13335) (address records, no CNAME)
www vs bare domain	Same network skyfi.dk: 104.21.79.243 172.67.172.7 2606:4700:3030::6815:4ff3 2606:4700:3034::ac43:ac07 (AS13335) www.skyfi.dk: 104.21.79.243 172.67.172.7 2606:4700:3030::6815:4ff3 2606:4700:3034::ac43:ac07 (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

🔗 TLSA / DANE#

4 records 76ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	00E55642F312E05CDB899B1433EDF47F…

🔐 DNSSEC#

92ms

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

🏷️ SOA#

55ms

Field	Value
Serial	2406499479
Primary NS (MNAME)	clark.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-07 22:29:03

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2020-03-30
Expires	2036-03-31 (3452d)

📋 WHOIS#

⏱️ Lookup Timing#

65ms

40ms

39ms

AAAA

44ms

TXT

133ms

CAA

100ms

HTTPS

75ms

TLSA

76ms

SOA

55ms

MTA-STS

63ms

DNSSEC

92ms

SRV

96ms

Total

1025ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 20:48:02	3663ms	2 NS 2 A 4 MX	🔒 Secure
2026-09-30 17:17:58	610ms	2 NS 2 A 4 MX	🔒 Secure
2026-09-26 19:40:57	851ms	2 NS 2 A 4 MX	🔒 Secure
2026-09-25 19:19:48	794ms	2 NS 2 A 4 MX	🔒 Secure
2026-09-23 18:38:34	2712ms	2 NS 2 A 4 MX	🔒 Secure
2026-09-14 05:04:10	2679ms	2 NS 2 A 4 MX	🔒 Secure
2026-08-29 11:29:04	632ms	2 NS 2 A 4 MX	🔒 Secure
2026-08-21 15:07:59	10035ms	2 NS 2 A 4 MX	🔒 Secure
2026-07-28 20:34:02	3984ms	2 NS 2 A 4 MX	🔒 Secure
2026-07-26 12:09:14	10879ms	2 NS 2 A 4 MX	🔒 Secure
2026-07-04 19:18:51	1525ms	2 NS 2 A 4 MX	🔒 Secure
2026-07-01 21:38:18	1539ms	2 NS 2 A 4 MX	🔒 Secure
2026-06-18 00:22:15 shown	1025ms	2 NS 2 A 4 MX	🔒 Secure