cuf.dk

📜 Historical scan 2026-07-23 09:27:43 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cuf.dk is a .dk domain served by 5 nameservers (ns1.gigahost.dk, ns2.gigahost.dk, ns3.gigahost.dk and 2 more). It was registered on 17 October 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 13.248.155.104 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by cuf-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a 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#

5 records 107ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.gigahost.dk	46.183.139.31	—	AS47292 Sentia Denmark A/S
ns2.gigahost.dk	46.183.139.222	web22.gigahost.dk	AS47292 Sentia Denmark A/S
ns3.gigahost.dk	71.19.249.71	ns3.gigahost.dk	AS11831 eSecureData
ns4.gigahost.dk	51.79.215.130	ns4.gigahost.dk	AS16276 OVH SAS
ns5.gigahost.dk	77.74.192.83	ns5.gigahost.dk	AS42831 UK Dedicated Servers Limited

🌍 A Records#

2 records 102ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
13.248.155.104	3600s	a20b9ee60132ef283.awsglobalaccelerator.com	AS16509	Amazon.com, Inc.	13.248.0.0/14	🇺🇸 United States	—
76.223.27.102	3600s	a20b9ee60132ef283.awsglobalaccelerator.com	AS16509	Amazon.com, Inc.	76.223.0.0/17	🇺🇸 United States	—

📧 MX Records#

1 records 111ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	360s	cuf-dk.mail.protection.outlook.com	2a01:111:f403:ca04::8 2a01:111:f403:ca04::b 2a01:111:f403:ca04::d 2a01:111:f403:ca09::2 52.101.68.12 52.101.68.18 52.101.68.27 52.101.68.5	mail-db5pr02cu00100.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.98.16.35
🔶 Autoconfig	proxy-ssl.webflow.com → 54.155.19.65

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

4 records 227ms

TXT Record
google-site-verification=iKGxkb-9KQ66GWUpMzrVB59CbqcJ6JgqKIowFtJf504
P-vvXWGzSTNJ
Replace this with your Office 365 token
v=spf1 include:spf.protection.outlook.com include:spf.permido.com include:servers.mcsv.net -all

✉️ SPF#

Policy	Record (cuf.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.permido.com include:servers.mcsv.net -all

📨 DMARC#

Policy	Record (_dmarc.cuf.dk)
p=quarantine	v=DMARC1; p=quarantine;

📬 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 2026-10-19 22:15:30

www CNAME	proxy-ssl.webflow.com (all on webflow.com) → 18.202.8.75 3.248.56.152 54.155.19.65 (AS16509)
www vs bare domain	Same network cuf.dk: 13.248.155.104 76.223.27.102 (AS16509) www.cuf.dk: 18.202.8.75 3.248.56.152 54.155.19.65 (AS16509)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

2 found

Selector	CNAME	Key
k1	dkim.mcsv.net	RSA · ~1024 bit below 2048 bit
selector1	selector1-cuf-dk._domainkey.fecdk.onmicrosoft.com	RSA · ~1024 bit below 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: 3/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.cuf.dk	proxy-ssl.webflow.com

🔗 TLSA / DANE#

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

🔐 DNSSEC#

189ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026072301
Primary NS (MNAME)	ns1.gigahost.dk
Responsible (RNAME)	hostmaster@cuf.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-19 22:44:26

Field	Value
Registrar	GIGAHOST ApS
Registered	2018-10-17
Expires	2027-10-31 (374d)

🔗 Same registrant#

3 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).

Domain	Registrar
charlottenissen.dk	Simply.com A/S
fec-dk.dk	Punktum dk A/S (direct)
fft-dk.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

107ms

102ms

111ms

AAAA

87ms

TXT

227ms

CAA

81ms

HTTPS

231ms

TLSA

311ms

SOA

0ms

MTA-STS

119ms

DNSSEC

189ms

SRV

191ms

Total

1654ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-19 22:15:30	4357ms	5 NS 2 A 1 MX	🔓 Insecure
2026-10-15 16:59:00	3285ms	5 NS 2 A 1 MX	🔓 Insecure
2026-10-08 08:38:18	1940ms	5 NS 2 A 1 MX	🔓 Insecure
2026-10-01 05:09:19	1449ms	5 NS 2 A 1 MX	🔓 Insecure
2026-09-24 02:10:20	1666ms	5 NS 2 A 1 MX	🔓 Insecure
2026-09-21 20:14:09	3100ms	5 NS 2 A 1 MX	🔓 Insecure
2026-09-11 21:21:33	1557ms	5 NS 2 A 1 MX	🔓 Insecure
2026-09-03 13:13:15	2126ms	5 NS 2 A 1 MX	🔓 Insecure
2026-08-27 12:23:59	1589ms	5 NS 2 A 1 MX	🔓 Insecure
2026-08-26 11:59:10	2087ms	5 NS 2 A 1 MX	🔓 Insecure
2026-08-20 08:14:55	11038ms	5 NS 2 A 1 MX	🔓 Insecure
2026-08-15 01:31:30	2041ms	5 NS 2 A 1 MX	🔓 Insecure
2026-08-09 01:40:42	9627ms	5 NS 2 A 1 MX	🔓 Insecure
2026-08-03 00:52:26	9443ms	5 NS 2 A 1 MX	🔓 Insecure
2026-07-23 09:27:43 shown	1654ms	5 NS 2 A 1 MX	🔓 Insecure
2026-07-16 15:46:29	1757ms	5 NS 2 A 1 MX	🔓 Insecure
2026-07-09 19:35:39	9879ms	5 NS 2 A 1 MX	🔓 Insecure
2026-07-03 13:32:26	8883ms	5 NS 2 A 1 MX	🔓 Insecure
2026-06-29 09:00:34	1496ms	5 NS 2 A 1 MX	🔓 Insecure
2026-06-20 12:28:23	3080ms	5 NS 2 A 1 MX	🔓 Insecure
2026-06-16 23:10:30	752ms	5 NS 2 A 1 MX	🔓 Insecure