3el.dk DNS records

🖥️ Nameservers2 records 50ms

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 77ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.159.135.42	3600s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	—	—

📧 MX Records1 records 69ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	3el-dk.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca04::f 2a01:111:f403:ca09::3 2a01:111:f403:ca09::9 52.101.68.29 52.101.68.8 52.101.73.2 52.101.73.6	mail-du0pr03cu00102.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-as9pr07cu00302.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 → 52.98.154.152
🔶 Autoconfig	162.159.135.42

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 304ms

TXT Record
v=spf1 include:spf.protection.outlook.com ip4:109.56.226.85 include:spf.jlhosting.dk include:spf.minuba.dk -all

✉️ SPF

Policy	Record (3el.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:109.56.226.85 include:spf.jlhosting.dk include:spf.minuba.dk -all

📨 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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.3el.dk	3el.dk.kinstavalidation.app

🔗 TLSA / DANE

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

🔐 DNSSEC185ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081101
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

50ms

A

77ms

MX

69ms

AAAA

56ms

TXT

304ms

CAA

63ms

HTTPS

59ms

TLSA

106ms

SOA

0ms

MTA-STS

294ms

DNSSEC

185ms

SRV

149ms

Total

1166ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-12 16:57:17	1166ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 11:52:57	17309ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-12 15:23:30	1527ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 11:17:37	947ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 22:29:38	1002ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 02:11:42	788ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 12:50:23	1403ms	2 NS 1 A 1 MX	🔒 Secure	View