jcon.dk

📜 Historical scan 2026-09-21 18:12:22 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jcon.dk is a .dk domain served by 2 nameservers (aisha.ns.cloudflare.com, darl.ns.cloudflare.com). It was registered on 1 July 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.29.254 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by route3.mx.cloudflare.net, route2.mx.cloudflare.net and 1 more. The zone is not DNSSEC-signed, publishes a 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#

2 records 37ms

Nameserver	IP addresses	PTR	ASN / ISP
aisha.ns.cloudflare.com	108.162.194.186 162.159.38.186 172.64.34.186 2606:4700:50::a29f:26ba 2803:f800:50::6ca2:c2ba 2a06:98c1:50::ac40:22ba	aisha.ns.cloudflare.com aisha.ns.cloudflare.com aisha.ns.cloudflare.com aisha.ns.cloudflare.com aisha.ns.cloudflare.com aisha.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
darl.ns.cloudflare.com	108.162.193.98 172.64.33.98 173.245.59.98 2606:4700:58::adf5:3b62 2803:f800:50::6ca2:c162 2a06:98c1:50::ac40:2162	darl.ns.cloudflare.com darl.ns.cloudflare.com darl.ns.cloudflare.com darl.ns.cloudflare.com darl.ns.cloudflare.com darl.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.29.254	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.150.37	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

3 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	300s	route3.mx.cloudflare.net	162.159.205.23 162.159.205.24 162.159.205.25 2606:4700:f5::11 2606:4700:f5::12 2606:4700:f5::13	route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
26	300s	route2.mx.cloudflare.net	162.159.205.17 162.159.205.18 162.159.205.19 2606:4700:f5::10 2606:4700:f5::e 2606:4700:f5::f	route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
51	300s	route1.mx.cloudflare.net	162.159.205.11 162.159.205.12 162.159.205.13 2606:4700:f5::b 2606:4700:f5::c 2606:4700:f5::d	route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)#

2 records 37ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3036::6815:1dfe	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:9625	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 36ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.29.254,172.67.150.37 ech=AEX+DQBBGQAgACDXhbyp6YejOIxAAP8ReUkTLB47ufVDU2R8FaHdQmzcPwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::6815:1dfe,2606:4700:3037::ac43:9625

🔌 SRV Records#

1 records 68ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com

📝 TXT Records#

1 records 150ms

TXT Record
v=spf1 include:_spf.mx.cloudflare.net ~all

✉️ SPF#

Policy	Record (jcon.dk)
~all (soft fail)	v=spf1 include:_spf.mx.cloudflare.net ~all

📨 DMARC#

Policy	Record (_dmarc.jcon.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 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 2026-10-07 22:46:28

www	104.21.29.254 172.67.150.37 2606:4700:3036::6815:1dfe 2606:4700:3037::ac43:9625 (AS13335) (address records, no CNAME)
www vs bare domain	Same network jcon.dk: 104.21.29.254 172.67.150.37 2606:4700:3036::6815:1dfe 2606:4700:3037::ac43:9625 (AS13335) www.jcon.dk: 104.21.29.254 172.67.150.37 2606:4700:3036::6815:1dfe 2606:4700:3037::ac43:9625 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.jcon.dk	C5bdOms8TO6wUZbQrNq7_CtzQKdlEjs607U5_d_Vr5A
TXT	_acme-challenge.jcon.dk	qdFwLc2XvsDUBJRC29eGwUPabArjXtap2dtGIksDtu8

🔗 TLSA / DANE#

9 records 141ms

Service / Owner	Type	Cert association
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…

🔐 DNSSEC#

105ms

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	2415461564
Primary NS (MNAME)	aisha.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-07 22:31:19

Field	Value
Registrar	Simply.com A/S
Registered	2002-07-01
Expires	2027-09-30 (347d)

📋 WHOIS#

⏱️ Lookup Timing#

37ms

30ms

36ms

AAAA

37ms

TXT

150ms

CAA

29ms

HTTPS

36ms

TLSA

141ms

SOA

0ms

MTA-STS

50ms

DNSSEC

105ms

SRV

68ms

Total

1090ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 22:46:28	1048ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-30 09:29:57	596ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-23 20:50:08	1264ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-21 18:12:22 shown	1090ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-17 21:34:51	618ms	4 NS 1 A 1 MX	🔒 Secure