skolecert.dk

📜 Historical scan 2026-10-19 22:10:59 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

skolecert.dk is a .dk domain served by 2 nameservers (lucy.ns.cloudflare.com, micah.ns.cloudflare.com). It was registered on 13 November 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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 107ms

Nameserver	IP addresses	PTR	ASN / ISP
lucy.ns.cloudflare.com	108.162.192.133 172.64.32.133 173.245.58.133 2606:4700:50::adf5:3a85 2803:f800:50::6ca2:c085 2a06:98c1:50::ac40:2085	lucy.ns.cloudflare.com lucy.ns.cloudflare.com lucy.ns.cloudflare.com lucy.ns.cloudflare.com lucy.ns.cloudflare.com lucy.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
micah.ns.cloudflare.com	108.162.193.206 172.64.33.206 173.245.59.206 2606:4700:58::adf5:3bce 2803:f800:50::6ca2:c1ce 2a06:98c1:50::ac40:21ce	micah.ns.cloudflare.com micah.ns.cloudflare.com micah.ns.cloudflare.com micah.ns.cloudflare.com micah.ns.cloudflare.com micah.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

🌍

No A records found

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 243ms

TXT Record
v=spf1 -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.skolecert.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; rua=mailto:386460bb43274f768239c8285c3a4f50@dmarc-reports.cloudflare.net;

📬 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 2026-10-21 13:13:10

www	Exists, no address
www vs bare domain	Neither resolves skolecert.dk: no address www.skolecert.dk: no address
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#

209ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

15ms

Field	Value
Serial	2415814052
Primary NS (MNAME)	lucy.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-19 22:46:31

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2023-11-13
Expires	2026-11-12 (15d)

🔗 Same registrant#

1 domain

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).

Domain	Registrar
ai-kortet.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

107ms

90ms

110ms

AAAA

135ms

TXT

243ms

CAA

95ms

HTTPS

102ms

TLSA

40ms

SOA

15ms

MTA-STS

141ms

DNSSEC

209ms

SRV

126ms

Total

491ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 13:13:10	389ms	2 NS 0 A 0 MX	🔒 Secure
2026-10-19 22:10:59 shown	491ms	2 NS 0 A 0 MX	🔒 Secure
2026-10-16 19:41:56	376ms	2 NS 0 A 0 MX	🔒 Secure
2026-10-15 19:07:28	360ms	2 NS 0 A 0 MX	🔒 Secure
2026-09-30 23:47:57	437ms	2 NS 0 A 0 MX	🔒 Secure
2026-09-26 13:27:14	521ms	2 NS 0 A 0 MX	🔒 Secure
2026-09-26 07:14:40	510ms	2 NS 0 A 0 MX	🔒 Secure
2026-09-07 12:24:35	1146ms	2 NS 0 A 0 MX	🔒 Secure
2026-08-18 08:15:09	1412ms	2 NS 0 A 0 MX	🔒 Secure
2026-08-16 20:53:04	2250ms	2 NS 0 A 0 MX	🔒 Secure
2026-08-10 09:46:43	3301ms	2 NS 0 A 0 MX	🔒 Secure
2026-07-17 10:39:53	598ms	2 NS 0 A 0 MX	🔒 Secure
2026-06-25 14:34:01	816ms	2 NS 0 A 0 MX	🔒 Secure
2026-06-21 05:34:52	426ms	2 NS 0 A 0 MX	🔒 Secure
2026-06-17 12:10:47	1417ms	2 NS 0 A 0 MX	🔒 Secure