oleibsen.dk DNS records

🖥️ Nameservers2 records 52ms

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 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
35.214.221.112	3600s	112.221.214.35.bc.googleusercontent.com	AS43515	Google Ireland Limited	35.214.128.0/17	🇳🇱 The Netherlands	Groningen

📧 MX Records1 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	oleibsen-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca09::26 2a01:111:f403:ca09::9 2a01:111:f403:ca38::8 52.101.103.137 52.101.209.153 52.101.68.16 52.101.73.1	mail-db4pr02cu00406.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-am3pr04cu00501.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 → 40.104.116.40

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 71ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records4 records 165ms

TXT Record
_globalsign-domain-verification=cX5o0TWn-YJQomRwL84BvyqpmXRabWJHXC8NYUBdil
_globalsign-domain-verification=n5QlMrWT95Dyc7PIhOQi2cqj-vJnKIgu7LYjJUaiZW
MS=ms96792219
v=spf1 include:spf.protection.outlook.com ip4:92.43.176.4 ip4:92.246.5.98 ip4:157.250.162.84 -all

✉️ SPF

Policy	Record (oleibsen.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:92.43.176.4 ip4:92.246.5.98 ip4:157.250.162.84 -all

📨 DMARC

Policy	Record (_dmarc.oleibsen.dk)
p=reject	v=DMARC1;p=reject;sp=reject;pct=100;adkim=s;aspf=s;rua=mailto:dmarc_agg@vali.email;fo=1

📬 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)

🔐 DNSSEC78ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082901
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

52ms

A

39ms

MX

41ms

AAAA

33ms

TXT

165ms

CAA

41ms

HTTPS

32ms

TLSA

236ms

SOA

0ms

MTA-STS

47ms

DNSSEC

78ms

SRV

71ms

Total

786ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-02 03:47:43	786ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-30 09:58:31	1967ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-10 03:40:37	5512ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-05 20:08:54	5411ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-10 13:34:51	5194ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-02 11:56:59	885ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 12:19:55	920ms	2 NS 1 A 1 MX	🔒 Secure	View