skyfi.dk

📜 Historical scan 2026-09-14 05:04:10 · ← 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 73ms

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 67ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.79.243	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.172.7	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

4 records 77ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.pub.mailpod11-cph3.one.com	104.37.34.230	mx1.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	300s	mx2.pub.mailpod11-cph3.one.com	104.37.34.231	mx2.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	300s	mx3.pub.mailpod11-cph3.one.com	104.37.34.232	mx3.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	300s	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 81ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:4ff3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:ac07	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 107ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.79.243,172.67.172.7 ech=AEX+DQBBwQAgACBvLTwvpgonG8bZ78K0T7tZWEBIbGvj+NxAA8pYhtPEBgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::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 295ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	24F573980561755185B794745411B05D…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	24F573980561755185B794745411B05D…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	24F573980561755185B794745411B05D…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	24F573980561755185B794745411B05D…

🔐 DNSSEC#

218ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2414793888
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#

73ms

67ms

77ms

AAAA

81ms

TXT

248ms

CAA

61ms

HTTPS

107ms

TLSA

295ms

SOA

0ms

MTA-STS

134ms

DNSSEC

218ms

SRV

120ms

Total

2679ms

🕐 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 shown	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	1025ms	2 NS 2 A 4 MX	🔒 Secure