jacon.dk DNS records

🖥️ Nameservers2 records 24ms

Nameserver	IP addresses	PTR	ASN / ISP
ns07.sac-it.dk	85.235.243.63	ns07.sac-it.dk	AS3308 Norlys Digital A/S
ns08.sac-it.dk	128.76.60.63	ns08.sac-it.dk	AS3292 TDC Holding A/S

🌍 A Records1 records 22ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
178.251.4.112	3600s	web1.bilinfo.dk	AS48854	team.blue Denmark A/S	178.251.0.0/21	🇩🇰 Denmark	—

📧 MX Records3 records 25ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3325s	mx1-dk.centerasecurity.dk	128.76.60.167 128.76.60.187 89.233.19.127 89.233.19.127 89.233.19.188 89.233.19.188	mx6.centerasecurity.dk mx6.centerasecurity.dk 127.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk 188.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S
10	3325s	mx2-dk.centerasecurity.dk	128.76.60.168 128.76.60.169 89.233.19.128 89.233.19.128 89.233.19.129 89.233.19.129	mx6.centerasecurity.dk mx6.centerasecurity.dk 128.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk 129.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S
20	3325s	mx3-dk.centerasecurity.dk	128.76.60.187 89.233.19.129 89.233.19.129	mx6.centerasecurity.dk 129.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 44ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 158ms

TXT Record
google-site-verification=K24NFI2rxGNVvt19B6U3P2CnKCTiqbKFo-V11GlCnhg
v=spf1 ip4:194.182.254.0/24 ip4:195.81.252.0/23 include:spf.unoeuro.com include:spf.protection.outlook.com include:_spf.centerasecurity.dk -all

✉️ SPF

Policy	Record (jacon.dk)
-all (hard fail)	v=spf1 ip4:194.182.254.0/24 ip4:195.81.252.0/23 include:spf.unoeuro.com include:spf.protection.outlook.com include:_spf.centerasecurity.dk -all

📨 DMARC

Policy	Record (_dmarc.jacon.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:sacadmin@jacon.dk;

📬 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

🔗 TLSA / DANE6 records 108ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx3-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx3-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…

🔐 DNSSEC98ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082701
Primary NS (MNAME)	ns07.sac-it.dk
Responsible (RNAME)	hostmaster@jacon.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 RegistrationWHOIS fetched 2026-07-16 06:12:01

Field	Value
Registrar	SAC-IT A/S
Registered	1999-12-20
Expires	2026-12-31 (121d)

📋 WHOIS

⏱️ Lookup Timing

NS

24ms

A

22ms

MX

25ms

AAAA

32ms

TXT

158ms

CAA

24ms

HTTPS

23ms

TLSA

108ms

SOA

0ms

MTA-STS

50ms

DNSSEC

98ms

SRV

44ms

Total

751ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 02:26:41	751ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-08-20 19:57:39	1547ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-08-13 03:25:18	3370ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-08-09 05:41:30	25158ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-07-30 15:52:23	9188ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-07-23 14:42:28	9304ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-07-16 06:10:11	2187ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-07-09 04:39:27	18118ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-07-02 08:56:53	745ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-06-24 17:05:21	1911ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-06-22 22:07:47	837ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-06-18 00:16:59	1116ms	2 NS 1 A 3 MX	🔓 Insecure	View