decon.dk

📜 Historical scan 2026-08-03 16:01:30 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

decon.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 10 October 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.189.43.119 is hosted by Hostek AB (AS29024) in Sweden. Mail is handled by decon-dk.mail.protection.outlook.com. 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#

2 records 55ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
91.189.43.119	3600s	—	AS29024	Hostek AB	91.189.40.0/21	🇸🇪 Sweden	—

📧 MX Records#

1 records 63ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	decon-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca04::9 2a01:111:f403:ca09::3 2a01:111:f403:ca09::f 52.101.68.0 52.101.68.15 52.101.68.21 52.101.68.29	mail-db4pr02cu00307.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-dbapr03cu00105.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	autodiscover.outlook.com → 52.98.149.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 183ms

TXT Record
MS=ms17049042
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (decon.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.decon.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:dmarc-noreply@decon.dk; ruf=mailto:dmarc-noreply@decon.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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 02:04:01

www	91.189.43.119 (AS29024) (address records, no CNAME)
www vs bare domain	Same network decon.dk: 91.189.43.119 (AS29024) www.decon.dk: 91.189.43.119 (AS29024)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

144ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026080201
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-04 23:50:09

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-10-10
Expires	2026-10-31 (14d)

📋 WHOIS#

⏱️ Lookup Timing#

55ms

43ms

63ms

AAAA

56ms

TXT

183ms

CAA

39ms

HTTPS

62ms

TLSA

184ms

SOA

0ms

MTA-STS

110ms

DNSSEC

144ms

SRV

180ms

Total

9081ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 23:05:25	1461ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-14 00:01:51	3120ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-06 06:45:24	1464ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 21:53:33	809ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-03 16:01:30 shown	9081ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-03 14:41:08	5270ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 09:02:38	1023ms	2 NS 1 A 1 MX	⚠️ Bogus
2026-06-22 06:31:11	918ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 01:25:43	2675ms	2 NS 1 A 1 MX	🔒 Secure