firstlineit.dk DNS records

🖥️ Nameservers2 records 41ms

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 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.142	3600s	webcluster1.webpod14-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 95ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	firstlineit-dk.mail.protection.outlook.com	2a01:111:f403:ca09::5 2a01:111:f403:ca09::7 2a01:111:f403:ca09::8 2a01:111:f403:ca09::d 52.101.68.10 52.101.73.153 52.101.73.16 52.101.73.26	mail-am1pr04cu00105.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as9pr05cu01302.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 → 40.101.27.137
🔶 Autoconfig	46.30.213.142

🔷 AAAA Records (IPv6)1 records 70ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10c:73:60e0:ba0a:8978	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records4 records 235ms

TXT Record
apple-domain-verification=JH0WJlzYuz30PUgI
google-site-verification=pWuUCbJub7MgkFVkpshXSIFEQoHsKPaBuC9k_wUNXmk
google-site-verification=WFFGVLimeN6PrJoP71D7hbvY64_kDEzClI6l9jsx0e4
v=spf1 include:spf.protection.outlook.com include:spf.mspmanager.com include:spf.mtaroutes.com include:postfilter.dk include:spf.ideal.shop include:_spf.webmercs.com -all

✉️ SPF

Policy	Record (firstlineit.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.mspmanager.com include:spf.mtaroutes.com include:postfilter.dk include:spf.ideal.shop include:_spf.webmercs.com -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

🔗 TLSA / DANE

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

🔐 DNSSEC93ms

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

🏷️ SOA47ms

Field	Value
Serial	2026053002
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

41ms

A

38ms

MX

95ms

AAAA

70ms

TXT

235ms

CAA

92ms

HTTPS

36ms

TLSA

247ms

SOA

47ms

MTA-STS

39ms

DNSSEC

93ms

SRV

118ms

Total

762ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-02 12:25:10	4830ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 20:24:49	1179ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 04:23:11	887ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-17 04:24:45	7035ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-07 04:01:34	1357ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-04 00:50:43	1739ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 10:51:21	1305ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 00:19:15	950ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 08:54:59	762ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 10:00:55	4724ms	2 NS 1 A 1 MX	🔒 Secure	View