gotu.dk

📜 Historical scan 2026-08-24 11:32:05  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gotu.dk is a .dk domain served by 4 nameservers (ns101.cloudns.net, ns103.cloudns.net, pns102.cloudns.net and 1 more). It was registered on 16 February 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.160.30.86 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by anon.cephalopo.net, sat1.cephalopo.net. The zone is DNSSEC-signed and validates, publishes a 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#

4 records   58ms
NameserverIP addressesPTRASN / ISP
ns101.cloudns.net 2a00:1768:1001:9::5
85.159.233.158		 ns101.cloudns.net
ns101.cloudns.net		 AS43350 NForce Entertainment B.V.
AS43350 NForce Entertainment B.V.
ns103.cloudns.net 217.182.183.225 ns103.cloudns.net AS16276 OVH SAS
pns102.cloudns.net 185.136.97.99
2a06:fb00:1::2:99		 pns102.cloudns.net
pns102.cloudns.net		 AS203391 Cloud DNS Ltd
AS203391 Cloud DNS Ltd
pns104.cloudns.net 185.136.99.99
2a06:fb00:1::4:99		 pns104.cloudns.net
pns104.cloudns.net		 AS203391 Cloud DNS Ltd
AS203391 Cloud DNS Ltd

🌍 A Records#

1 records   63ms
IPTTLPTRASNISP / OrgCIDRCountryCity
93.160.30.86 3600s anon.cephalopo.net AS3292 TDC Holding A/S 93.160.0.0/14 🇩🇰 Denmark Frederiksberg

📧 MX Records#

2 records   64ms
PriorityTTLMail ServerIP addressesPTRASN
10 86400s anon.cephalopo.net 93.160.30.86 anon.cephalopo.net AS3292 TDC Holding A/S
15 86400s sat1.cephalopo.net 2a03:6000:6f70:631::234
46.23.91.234		 sat1.cephalopo.net
sat1.cephalopo.net		 AS60131 High5! B.V.
AS60131 High5! B.V.

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover93.160.30.86

🔷 AAAA Records (IPv6)#

1 records   72ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a03:6000:6f70:631::234 3600s sat1.cephalopo.net AS60131 High5! B.V. 2a03:6000:0:0:0:0:0:0/29 🇳🇱 The Netherlands —

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

4 records   115ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 0 0 80 autodiscover.gotu.dk
_autodiscover._tcp 0 0 443 autodiscover.gotu.dk
_imap._tcp 0 0 143 mail.gotu.dk
_imaps._tcp 0 0 993 mail.gotu.dk

📝 TXT Records#

1 records   259ms
TXT Record
v=spf1 mx ~all

✉️ SPF#

PolicyRecord (gotu.dk)
~all (soft fail) v=spf1 mx ~all

📨 DMARC#

PolicyRecord (_dmarc.gotu.dk)
p=reject v=DMARC1; p=reject; rua=mailto:dmarc-aggregate@cephalopo.net,mailto:dmarc@1tyz69qz.uriports.com; ruf=mailto:dmarc-forensic@cephalopo.net,mailto:dmarc@1tyz69qz.uriports.com; sp=reject; adkim=r; aspf=r; fo=1

📬 MTA-STS#

223ms
CheckResult
Status🔒 Enforce
TXT record (_mta-sts)✓ Found
HTTPS policy✓ Valid
Modeenforce
Policy ID20260607091500
max_age86400s
Policy MXanon.cephalopo.net, sat1.cephalopo.net

📈 TLSRPT#

StatusReport address (rua)
✓ Enabled mailto:tlsrpt@cephalopo.net, mailto:tlsrpt@1tyz69qz.uriports.com

📜 CAA Records#

3 records   75ms
FlagsTagValue
0 iodef mailto:security@gotu.dk
0 issue letsencrypt.org
0 issue sectigo.com

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-08 03:24:42
www CNAMEgotu.dk (all on gotu.dk)
www vs bare domainSame network
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt · opt-out RFC 9276 ✓
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY
BIMIv=BIMI1; l=https://gotu.dk/bimi-gotu.svg;

✍️ 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: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

4 records   206ms
Service / OwnerTypeCert association
SMTP _25._tcp.anon.cephalopo.net DANE-EE · SPKI · SHA-256 C466C70B2FEABFD8105D867B1A1B5C82…
SMTP _25._tcp.anon.cephalopo.net DANE-EE · SPKI · SHA-256 5F3C288966872325E881F3CFC7129E3F…
HTTPS _443._tcp.gotu.dk DANE-EE · SPKI · SHA-256 C466C70B2FEABFD8105D867B1A1B5C82…
HTTPS _443._tcp.gotu.dk DANE-EE · SPKI · SHA-256 1789EC4AC7B0BA8866317EE070B8646D…

🔐 DNSSEC#

106ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2026082404
Primary NS (MNAME)ns101.cloudns.net
Responsible (RNAME)admin@cephalopo.net
Refresh7200s
Retry1800s
Expire1209600s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-16 16:03:02
FieldValue
RegistrarNETIM
Registered2004-02-16
Expires2027-02-28 (134d)

🔗 Same registrant#

0 domains

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).

No other domain with this registrant in our WHOIS data yet
📋 WHOIS#

⏱️ Lookup Timing#

NS
58ms
A
63ms
MX
64ms
AAAA
72ms
TXT
259ms
CAA
75ms
HTTPS
74ms
TLSA
206ms
SOA
0ms
MTA-STS
223ms
DNSSEC
106ms
SRV
115ms
Total
5552ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-29 20:32:24 3446ms 4 NS 1 A 2 MX 🔒 Secure
2026-09-28 18:54:47 6227ms 4 NS 1 A 2 MX 🔒 Secure
2026-09-23 17:53:42 11977ms 4 NS 1 A 2 MX 🔒 Secure
2026-09-09 08:29:48 6559ms 4 NS 1 A 2 MX 🔒 Secure
2026-09-06 01:13:40 3497ms 4 NS 1 A 2 MX 🔒 Secure
2026-08-24 11:32:05 shown 5552ms 4 NS 1 A 2 MX 🔒 Secure
2026-08-13 05:44:15 11677ms 4 NS 1 A 2 MX 🔒 Secure
2026-07-24 04:35:34 6722ms 4 NS 1 A 2 MX 🔒 Secure
2026-07-07 03:27:13 19911ms 4 NS 1 A 2 MX 🔒 Secure
2026-07-05 00:14:23 2364ms 4 NS 1 A 2 MX 🔒 Secure
2026-07-03 13:14:47 9569ms 4 NS 1 A 2 MX 🔒 Secure
2026-06-26 04:31:45 10246ms 4 NS 1 A 2 MX 🔒 Secure
2026-06-24 05:08:04 1563ms 4 NS 1 A 2 MX 🔒 Secure
2026-06-21 11:54:35 922ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-21 04:04:59 6780ms 4 NS 1 A 2 MX 🔒 Secure
2026-06-17 09:22:34 1706ms 4 NS 1 A 2 MX 🔒 Secure
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