sprogskolen.dk

📜 Historical scan 2026-06-18 10:38:48 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sprogskolen.dk is a .dk domain served by 2 nameservers (ns1.krystal.uk, ns2.krystal.uk). It was registered on 3 May 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx1.krystal.uk, mx2.krystal.uk. The zone is not DNSSEC-signed, has no 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 188ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.krystal.uk	77.72.0.11	ns1.krystal.uk	AS12488 Krystal Hosting Ltd
ns2.krystal.uk	139.162.230.184	ns2.krystal.uk	AS63949 Akamai Connected Cloud

🌍 A Records#

1 records 203ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
77.72.2.88	—	octopus-lon.krystal.uk	AS12488	—	—	—	—

📧 MX Records#

2 records 192ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx1.krystal.uk	185.53.56.44 185.53.56.46	mx1.strikemail.co.uk mx1.strikemail.co.uk	AS12488 Krystal Hosting Ltd AS12488 Krystal Hosting Ltd
20	—	mx2.krystal.uk	185.53.56.45 185.53.56.47	mx2.strikemail.co.uk mx2.strikemail.co.uk	AS12488 Krystal Hosting Ltd AS12488 Krystal Hosting Ltd

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 511ms

TXT Record
v=spf1 ip4:77.72.2.88 ip4:77.72.0.98 include:relay.k.io a mx ip4:77.72.6.12 ~all

✉️ SPF#

Policy	Record (sprogskolen.dk)
~all (soft fail)	v=spf1 ip4:77.72.2.88 ip4:77.72.0.98 include:relay.k.io a mx ip4:77.72.6.12 ~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 2026-10-10 00:16:37

www CNAME	sprogskolen.dk (all on sprogskolen.dk) → 77.72.2.88 (AS12488)
www vs bare domain	Same network sprogskolen.dk: 77.72.2.88 (AS12488) www.sprogskolen.dk: 77.72.2.88 (AS12488)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

280ms

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

🏷️ SOA#

162ms

Field	Value
Serial	2026042901
Primary NS (MNAME)	ns1.krystal.uk
Responsible (RNAME)	admin@k-validator-octopus-lon.krystal.uk
Refresh	3600s
Retry	1800s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-10 05:12:30

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2006-05-03
Expires	2027-05-31 (216d)

📋 WHOIS#

⏱️ Lookup Timing#

188ms

203ms

192ms

AAAA

172ms

TXT

511ms

CAA

174ms

HTTPS

176ms

TLSA

76ms

SOA

162ms

MTA-STS

180ms

DNSSEC

280ms

SRV

202ms

Total

1489ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-03 21:08:10	3133ms	2 NS 1 A 2 MX	🔓 Insecure
2026-08-29 18:07:13	1808ms	2 NS 1 A 2 MX	🔓 Insecure
2026-08-27 10:23:37	9797ms	2 NS 1 A 2 MX	🔓 Insecure
2026-08-27 03:43:45	10216ms	2 NS 1 A 2 MX	🔓 Insecure
2026-07-01 18:01:41	2055ms	2 NS 1 A 2 MX	🔓 Insecure
2026-06-19 23:55:40	5534ms	2 NS 1 A 2 MX	🔓 Insecure
2026-06-18 10:38:48 shown	1489ms	2 NS 1 A 2 MX	🔓 Insecure