decon.dk DNS records

🖥️ Nameservers2 records 45ms

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 Records1 records 59ms

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

📧 MX Records1 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	decon-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca09::8 2a01:111:f403:ca09::9 2a01:111:f403:ca09::d 52.101.103.143 52.101.73.123 52.101.73.153 52.101.73.6	mail-dbapr03cu00100.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-am6pr04cu00306.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 → 40.104.116.56

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 172ms

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

🔗 TLSA / DANE

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

🔐 DNSSEC82ms

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

🏷️ SOA0ms

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

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

45ms

A

59ms

MX

42ms

AAAA

31ms

TXT

172ms

CAA

44ms

HTTPS

50ms

TLSA

277ms

SOA

0ms

MTA-STS

59ms

DNSSEC

82ms

SRV

67ms

Total

809ms

🕐 Scan History

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