tcaa.dk

📜 Historical scan 2026-08-19 04:52:37 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tcaa.dk is a .dk domain served by 3 nameservers (ns1.dns.services, ns2.dns.services, ns3.dns.services). It was registered on 24 August 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.242.131.238 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by tcaa-dk.i-v1.mx.microsoft. The zone is DNSSEC-signed and validates, has no 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#

3 records 157ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.dns.services	195.242.131.6 2001:67c:564:ffff::11	ns1.dns.services ns1.dns.services	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
ns2.dns.services	2a00:1b18:2:3:3::2 62.69.152.37	ns2.dns.services ns2.dns.services	AS47527 DLX A/S AS47527 DLX A/S
ns3.dns.services	185.55.197.53	ns3.dns.services	AS60153 Inpadi ApS

🌍 A Records#

1 records 151ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.242.131.238	3600s	forward01.dns.services	AS62121	Christian Ebsen ApS	195.242.130.0/23	🇩🇰 Denmark	—

📧 MX Records#

1 records 183ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	tcaa-dk.i-v1.mx.microsoft	2a01:111:f403:ca04:: 2a01:111:f403:ca09::4 2a01:111:f403:ca09::c 2a01:111:f403:ca09::e 52.101.68.10 52.101.68.15 52.101.73.11 52.101.73.28	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-am7pr05cu00204.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	185.26.62.16

🔷 AAAA Records (IPv6)#

1 records 174ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2001:67c:564:fffa::1002	3600s	—	AS62121	Christian Ebsen ApS	2001:67c:564:0:0:0:0:0/48	🇩🇰 Denmark	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 264ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com
_xmpp-server._tcp	0	100	5269	sip.tcaa.dk

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 11:43:19

www	195.242.131.238 2001:67c:564:fffa::1002 (AS62121) (address records, no CNAME)
www vs bare domain	Same network tcaa.dk: 195.242.131.238 2001:67c:564:fffa::1002 (AS62121) www.tcaa.dk: 195.242.131.238 2001:67c:564:fffa::1002 (AS62121)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.tcaa.dk	22f07055-3b91-4b31-a324-2a9399148f3c.acme-auth.itcn.dk
TXT	22f07055-3b91-4b31-a324-2a9399148f3c.acme-auth.itcn.dk	pivo0TPVcWCQt08TeP21jbjAdvYl4cn6dvqNLnFVpJU
TXT	22f07055-3b91-4b31-a324-2a9399148f3c.acme-auth.itcn.dk	YM23jsIRYjU1O0elcewIwNvTousSG7qKIKxMTfTR48o

🔗 TLSA / DANE#

10 records 165ms

Service / Owner	Type	Cert association
SMTP _25._tcp.tcaa-dk.i-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	38D895F5105BC2545822C17A2444F4B0…
SMTP _25._tcp.tcaa-dk.i-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	5F88694615E4C61686E106B84C3338C6…
SMTP _25._tcp.tcaa-dk.i-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	6EBFF927297A5B3AAF5EAE672252C36A…
SMTP _25._tcp.tcaa-dk.i-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	C1AD7778796D20BCA65C889A26550211…
SMTP _25._tcp.tcaa-dk.i-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	EA7A25255D111FC3CE4CB8FABE3ADF9C…
SMTP _25._tcp.tcaa-dk.i-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	133086C7B822371A4A3304F1661A7880…
SMTP _25._tcp.tcaa-dk.i-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	54883CC5F1849331E6BF5002C3129D20…
SMTP _25._tcp.tcaa-dk.i-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	803F7447CC75B208DBCA042346F5D8DF…
SMTP _25._tcp.tcaa-dk.i-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	A6C267923B26A4A9617EDA73D8DB4FBC…
SMTP _25._tcp.tcaa-dk.i-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	C495D9E40F7E625BE22F83CC64305182…

🔐 DNSSEC#

360ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026081801
Primary NS (MNAME)	ns1.dns.services
Responsible (RNAME)	post@dns.services
Refresh	10800s
Retry	3600s
Expire	1814400s
Minimum (neg-cache TTL)	7200s

📋 Registration#

WHOIS fetched 2026-10-09 02:16:03

Field	Value
Registrar	IT Center Nord
Registered	2007-08-24
Expires	2027-08-31 (316d)

📋 WHOIS#

⏱️ Lookup Timing#

157ms

151ms

183ms

AAAA

174ms

TXT

655ms

CAA

153ms

HTTPS

198ms

TLSA

165ms

SOA

0ms

MTA-STS

278ms

DNSSEC

360ms

SRV

264ms

Total

4798ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 11:43:19	582ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-09 02:13:51	1774ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-08 02:12:39	502ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-01 05:37:58	760ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-26 16:57:13	802ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-19 04:52:37 shown	4798ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-18 04:36:07	26033ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-20 06:33:21	1026ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-19 03:03:47	1182ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-17 13:44:42	2504ms	3 NS 1 A 1 MX	🔒 Secure