firstlease.dk DNS records

🖥️ Nameservers2 records 58ms

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 58ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
13.79.2.71	3600s	—	AS8075	Microsoft Corporation	13.64.0.0/11	🇮🇪 Ireland	Dublin

📧 MX Records1 records 53ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	firstlease-dk.mail.protection.outlook.com	2a01:111:f403:ca09::1 2a01:111:f403:ca09::2 2a01:111:f403:ca09::3 2a01:111:f403:ca09::9 52.101.103.137 52.101.68.10 52.101.73.12 52.101.73.4	mail-as9pr07cu00301.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am0pr83cu00404.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 73ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	1001	1	5061	sipfed.online.lync.com

📝 TXT Records5 records 179ms

TXT Record
google-site-verification=ySmLIffZ-NEi7qnAZr4H-4dR_zxcdhHDXkZquTalVGQ
ik0hkiflf267tuuans5nktcn6r
MS=ms37392673
pbe38ktsp4euoltdtau82evtf9
v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:emsd1.com -all

✉️ SPF

Policy	Record (firstlease.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:emsd1.com -all

📨 DMARC

Policy	Record (_dmarc.firstlease.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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)

🔐 DNSSEC86ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081901
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

58ms

A

58ms

MX

53ms

AAAA

37ms

TXT

179ms

CAA

61ms

HTTPS

39ms

TLSA

377ms

SOA

0ms

MTA-STS

57ms

DNSSEC

86ms

SRV

73ms

Total

1062ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-02 08:00:01	1062ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 06:35:52	1603ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-25 17:25:12	2999ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-19 12:43:46	1868ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-10 06:23:58	4989ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-20 05:25:30	9282ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 00:55:12	24914ms	2 NS 0 A 0 MX	❓ Unknown	View
2026-06-24 15:13:26	1698ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 16:16:31	1128ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 08:36:50	840ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 10:11:17	3963ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 10:07:21	767ms	2 NS 1 A 1 MX	🔒 Secure	View