cacs.dk

📜 Historical scan 2026-07-16 16:32:33 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cacs.dk is a .dk domain served by 3 nameservers (ns1.e-studio.dk, ns2.e-studio.dk, ns3.e-studio.dk). It was registered on 13 September 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.242.131.64 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by cacs.dk. The zone is DNSSEC-signed and validates, 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#

3 records 8055ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.e-studio.dk	195.242.131.5 2001:67c:564:fffc::11	ns1.e-studio.dk ns1.e-studio.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
ns2.e-studio.dk	2a00:1b18:2:3::2 62.69.152.34	ns2.e-studio.dk ns2.e-studio.dk	AS47527 DLX A/S AS47527 DLX A/S
ns3.e-studio.dk	193.200.90.183 2001:67c:564:fffc::13	ns3.e-studio.dk ns3.e-studio.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS

🌍 A Records#

1 records 8047ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.242.131.64	14393s	web2.e-studio.dk	AS62121	Christian Ebsen ApS	195.242.130.0/23	🇩🇰 Denmark	—

📧 MX Records#

1 records 8041ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	14400s	cacs.dk	195.242.131.64	web2.e-studio.dk	AS62121 Christian Ebsen ApS

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	195.242.131.64
🔶 Autoconfig	195.242.131.64

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 8123ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	cpanelemaildiscovery.cpanel.net

📝 TXT Records#

2 records 8282ms

TXT Record
_dmarc.cacs.dkv=DMARC1; p=reject; adkim=s; aspf=s;
v=spf1 +ip4:195.242.131.64 +include:_spf.e-studio.dk -all

✉️ SPF#

Policy	Record (cacs.dk)
-all (hard fail)	v=spf1 +ip4:195.242.131.64 +include:_spf.e-studio.dk -all

📨 DMARC#

Policy	Record (_dmarc.cacs.dk)
p=reject	v=DMARC1;p=reject;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400

📬 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 2026-10-09 01:45:58

www CNAME	cacs.dk (all on cacs.dk) → 195.242.131.64 (AS62121)
www vs bare domain	Same network cacs.dk: 195.242.131.64 (AS62121) www.cacs.dk: 195.242.131.64 (AS62121)
Wildcard	No
Denial of existence	NSEC3 · 7 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ 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

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.cacs.dk	3txtGfEnSa1VGxwMf9Ttc1rK2M41dOGhImCPNatqBe8

🔗 TLSA / DANE#

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

🔐 DNSSEC#

8068ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026071501
Primary NS (MNAME)	ns1.e-studio.dk
Responsible (RNAME)	hostmaster@mailrelay.e-studio.dk
Refresh	3600s
Retry	1800s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-05 23:55:13

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2002-09-13
Expires	2027-09-30 (347d)

📋 WHOIS#

⏱️ Lookup Timing#

8055ms

8047ms

8041ms

AAAA

8058ms

TXT

8282ms

CAA

8055ms

HTTPS

281ms

TLSA

86ms

SOA

0ms

MTA-STS

191ms

DNSSEC

8068ms

SRV

8123ms

Total

8857ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-05 23:43:13	389ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-16 00:54:15	432ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-15 18:32:37	654ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-16 16:32:33 shown	8857ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-16 18:46:14	2525ms	3 NS 1 A 1 MX	🔒 Secure