gotu.dk

📜 Historical scan 2026-07-03 13:14:47 · ← 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 46ms

Nameserver	IP addresses	PTR	ASN / 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 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.160.30.86	3600s	anon.cephalopo.net	AS3292	TDC Holding A/S	93.160.0.0/14	🇩🇰 Denmark	Frederiksberg

📧 MX Records#

2 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
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#

Service	CNAME / IP
🔷 Autodiscover	93.160.30.86

🔷 AAAA Records (IPv6)#

1 records 50ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
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 75ms

Service	Port	Target
_autodiscover._tcp	80	autodiscover.gotu.dk
_autodiscover._tcp	443	autodiscover.gotu.dk
_imap._tcp	143	mail.gotu.dk
_imaps._tcp	993	mail.gotu.dk

📝 TXT Records#

2 records 188ms

TXT Record
google-site-verification=CQIx1dG_nBJgvJT08X2QJEPUKVz8eBHPJqHU1chvKGs
v=spf1 mx -all

✉️ SPF#

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

📨 DMARC#

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

📬 MTA-STS#

224ms

Check	Result
Status	⚠️ Invalid
TXT record (_mta-sts)	✓ Found
HTTPS policy	✗ Missing / invalid
Policy ID	20252708090600
Policy MX	—

📈 TLSRPT#

Status	Report address (rua)
✓ Enabled	mailto:tlsrpt@gotu.dk

📜 CAA Records#

3 records 50ms

Flags	Tag	Value
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 CNAME	gotu.dk (all on gotu.dk) → 93.160.30.86 2a03:6000:6f70:631::234 (AS3292 AS60131)
www vs bare domain	Same network gotu.dk: 93.160.30.86 2a03:6000:6f70:631::234 (AS3292 AS60131) www.gotu.dk: 93.160.30.86 2a03:6000:6f70:631::234 (AS3292 AS60131)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt · opt-out RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY
BIMI	v=BIMI1; l=https://gotu.dk/bimi-gotu.svg;

✍️ 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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

4 records 468ms

Service / Owner	Type	Cert association
SMTP _25._tcp.anon.cephalopo.net	DANE-EE · SPKI · SHA-256	5F3C288966872325E881F3CFC7129E3F…
SMTP _25._tcp.anon.cephalopo.net	DANE-EE · SPKI · SHA-256	C466C70B2FEABFD8105D867B1A1B5C82…
HTTPS _443._tcp.gotu.dk	DANE-EE · SPKI · SHA-256	C466C70B2FEABFD8105D867B1A1B5C82…
HTTPS _443._tcp.gotu.dk	DANE-EE · SPKI · SHA-256	1789EC4AC7B0BA8866317EE070B8646D…

🔐 DNSSEC#

123ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026070302
Primary NS (MNAME)	ns101.cloudns.net
Responsible (RNAME)	admin@cephalopo.net
Refresh	7200s
Retry	1800s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-16 16:03:02

Field	Value
Registrar	NETIM
Registered	2004-02-16
Expires	2027-02-28 (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#

46ms

39ms

40ms

AAAA

50ms

TXT

188ms

CAA

50ms

HTTPS

46ms

TLSA

468ms

SOA

0ms

MTA-STS

224ms

DNSSEC

123ms

SRV

75ms

Total

9569ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
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	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 shown	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