sprogskolen.dk

Records from scan: 2026-09-03 21:08:10  ·  3133ms total  ·  last checked 2026-10-17 09:37 (unchanged)
⬇ 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. Its website address 77.72.2.88 is hosted by Krystal Hosting Ltd (AS12488) in United Kingdom. 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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records   142ms
NameserverIP addressesPTRASN / 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   53ms
IPTTLPTRASNISP / OrgCIDRCountryCity
77.72.2.88 14400s octopus-lon.krystal.uk AS12488 Krystal Hosting Ltd 77.72.0.0/21 🇬🇧 United Kingdom London

📧 MX Records#

2 records   125ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s 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 3600s 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   722ms
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#

PolicyRecord (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#

checked 2026-10-10 00:16:37
www CNAMEsprogskolen.dk (all on sprogskolen.dk)
www vs bare domainSame network
sprogskolen.dk: 77.72.2.88 (AS12488)
www.sprogskolen.dk: 77.72.2.88 (AS12488)
WildcardNo

✍️ DKIM keys#

1 found
SelectorCNAMEKey
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

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.sprogskolen.dk c1Vz7SqFbpKrAfSsnPnQOlSoVLx9Nd3TtaEXm-WDSxo

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2064ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2026082901
Primary NS (MNAME)ns1.krystal.uk
Responsible (RNAME)admin@k-validator-octopus-lon.krystal.uk
Refresh3600s
Retry1800s
Expire1209600s
Minimum (neg-cache TTL)86400s

📋 Registration#

WHOIS fetched 2026-10-10 05:12:30
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2006-05-03
Expires2027-05-31 (225d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
142ms
A
53ms
MX
125ms
AAAA
61ms
TXT
722ms
CAA
52ms
HTTPS
60ms
TLSA
332ms
SOA
0ms
MTA-STS
191ms
DNSSEC
2064ms
SRV
250ms
Total
3133ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-03 21:08:10 shown 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 1489ms 2 NS 1 A 2 MX 🔓 Insecure
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