jaco.dk

Records from scan: 2026-06-24 08:50:37 · 735ms total · last checked 2026-10-16 14:44 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jaco.dk is a .dk domain served by 2 nameservers (a.portsdns.se, b.portsdns.net). It was registered on 9 September 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.19 is hosted by team.blue Denmark A/S (AS48854) in Denmark. The zone is of unknown DNSSEC status, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 42ms

Nameserver	IP addresses	PTR	ASN / ISP
a.portsdns.se	2607:f740:e009::1 45.54.35.101	a.portsdns.se a.portsdns.se	AS63911 NetActuate, Inc AS63911 NetActuate, Inc
b.portsdns.net	2a00:11c0:3d::1 94.16.23.1	b.portsdns.net b.portsdns.net	AS42354 Anexia Cloud Solutions GmbH AS42354 Anexia Cloud Solutions GmbH

🌍 A Records#

1 records 68ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.19	900s	linux12.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

📧

No MX records found

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	jaco.dk → 185.21.40.19
🔶 Autoconfig	jaco.dk → 185.21.40.19

🔷 AAAA Records (IPv6)#

1 records 62ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2001:67c:3c0:12::53	28800s	—	AS51468	One.com A/S	2001:67c:3c0:0:0:0:0:0/48	🇩🇰 Denmark	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 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#

checked 2026-10-12 11:01:14

www CNAME	jaco.dk (all on jaco.dk) → 185.21.40.19 2001:67c:3c0:12::53 (AS48854 AS51468)
www vs bare domain	Same network jaco.dk: 185.21.40.19 2001:67c:3c0:12::53 (AS48854 AS51468) www.jaco.dk: 185.21.40.19 2001:67c:3c0:12::53 (AS48854 AS51468)
Wildcard	Yes: any name under the zone resolves

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.jaco.dk	jaco.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

127ms

Check	Result
Validation Status	❓ Unknown
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	broken trust chain resolving 'jaco.dk/DS/IN': 127.0.0.1#53

🏷️ SOA#

88ms

Field	Value
Serial	2023111300
Primary NS (MNAME)	a.portsdns.se
Responsible (RNAME)	registry@ports.net
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	28800s

📋 Registration#

WHOIS fetched 2026-10-09 20:11:48

Field	Value
Registrar	Abion AB
Registered	1996-09-09
Expires	2027-09-30 (348d)

📋 WHOIS#

⏱️ Lookup Timing#

42ms

68ms

56ms

AAAA

62ms

TXT

251ms

CAA

61ms

HTTPS

56ms

TLSA

128ms

SOA

88ms

MTA-STS

64ms

DNSSEC

127ms

SRV

156ms

Total

735ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-06-24 08:50:37 shown	735ms	2 NS 1 A 0 MX	❓ Unknown
2026-06-21 13:28:54	645ms	2 NS 1 A 0 MX	🔓 Insecure
2026-06-21 10:39:35	826ms	2 NS 1 A 0 MX	🔓 Insecure
2026-06-18 07:04:28	675ms	2 NS 1 A 0 MX	🔓 Insecure