gotu.dk

📜 Historical scan 2026-06-17 09:22:34 · ← 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, sat0.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 60ms

Nameserver	IP addresses	PTR	ASN / ISP
ns101.cloudns.net	—	—	—
ns103.cloudns.net	—	—	—
pns102.cloudns.net	—	—	—
pns104.cloudns.net	—	—	—

🌍 A Records#

1 records 48ms

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

📧 MX Records#

2 records 61ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	anon.cephalopo.net	93.160.30.86	anon.cephalopo.net	AS3292 TDC Holding A/S
15	—	sat0.cephalopo.net	77.237.234.114	sat0.cephalopo.net	AS51167 Contabo GmbH

🔷 AAAA Records (IPv6)#

1 records 58ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:c206:2224:4094::1	—	—	AS51167	Contabo GmbH	2a02:c204:0:0:0:0:0:0/30	🇫🇷 France	Lauterbourg

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 242ms

TXT Record
google-site-verification=CQIx1dG_nBJgvJT08X2QJEPUKVz8eBHPJqHU1chvKGs
v=spf1 include:spf.mailjet.com mx -all

✉️ SPF#

Policy	Record (gotu.dk)
-all (hard fail)	v=spf1 include:spf.mailjet.com mx -all

📨 DMARC#

Policy	Record (_dmarc.gotu.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc-aggregate@gotu.dk; ruf=mailto:dmarc-forensic@gotu.dk; pct=100; adkim=r; aspf=r; fo=1; ri=86400

📬 MTA-STS#

376ms

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 51ms

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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

6 records 208ms

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…
SMTP _25._tcp.sat0.cephalopo.net	DANE-EE · SPKI · SHA-256	5F3C288966872325E881F3CFC7129E3F…
SMTP _25._tcp.sat0.cephalopo.net	DANE-EE · SPKI · SHA-256	C466C70B2FEABFD8105D867B1A1B5C82…
HTTPS _443._tcp.gotu.dk	DANE-EE · SPKI · SHA-256	1789EC4AC7B0BA8866317EE070B8646D…
HTTPS _443._tcp.gotu.dk	DANE-EE · SPKI · SHA-256	C466C70B2FEABFD8105D867B1A1B5C82…

🔐 DNSSEC#

144ms

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

🏷️ SOA#

49ms

Field	Value
Serial	2026060101
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#

60ms

48ms

61ms

AAAA

58ms

TXT

242ms

CAA

51ms

HTTPS

52ms

TLSA

208ms

SOA

49ms

MTA-STS

376ms

DNSSEC

144ms

SRV

0ms

Total

1706ms

🕐 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	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 shown	1706ms	4 NS 1 A 2 MX	🔒 Secure