firstlease.dk

📜 Historical scan 2026-09-17 23:46:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

firstlease.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 17 December 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 13.79.2.71 is hosted by Microsoft Corporation (AS8075) in Ireland. Mail is handled by firstlease-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 119ms

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 Records#

1 records 128ms

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 Records#

1 records 108ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	firstlease-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca09::a 2a01:111:f403:ca21::10 2a01:111:f403:ca38::a 52.101.103.39 52.101.209.28 52.101.209.31 52.101.91.162	mail-db4pr02cu00406.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-matpr05cu00100.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-matpr04cu00302.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 → 40.99.157.56

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 234ms

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

📝 TXT Records#

5 records 315ms

TXT Record
google-site-verification=ySmLIffZ-NEi7qnAZr4H-4dR_zxcdhHDXkZquTalVGQ
ik0hkiflf267tuuans5nktcn6r
MS=ms83661729
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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-24 05:53:07

www CNAME	firstlease-web-prod.azurewebsites.net (all on azurewebsites.net) → 20.105.232.22 (AS8075)
www vs bare domain	Same network firstlease.dk: 20.105.232.113 20.105.232.22 (AS8075) www.firstlease.dk: 20.105.232.22 (AS8075)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-firstlease-dk._domainkey.ncgdk.a-v1.dkim.mail.microsoft	RSA · ~2048 bit
selector2	selector2-firstlease-dk._domainkey.ncgdk.a-v1.dkim.mail.microsoft	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

229ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026091203
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-21 04:49:18

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2010-12-17
Expires	2026-12-31 (64d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
vestergaardgo.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

119ms

128ms

108ms

AAAA

140ms

TXT

315ms

CAA

125ms

HTTPS

125ms

TLSA

255ms

SOA

0ms

MTA-STS

112ms

DNSSEC

229ms

SRV

234ms

Total

1157ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-24 05:53:07	627ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-21 04:17:33	967ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-09 23:46:35	1220ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-06 10:13:54	4525ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-01 08:01:31	758ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-20 04:35:43	1505ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-17 23:46:27 shown	1157ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-10 20:48:07	1197ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-02 08:00:01	1062ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 06:35:52	1603ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 17:25:12	2999ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-19 12:43:46	1868ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-10 06:23:58	4989ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-20 05:25:30	9282ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-03 00:55:12	24914ms	2 NS 0 A 0 MX	❓ Unknown
2026-06-24 15:13:26	1698ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 16:16:31	1128ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-19 08:36:50	840ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:11:17	3963ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:07:21	767ms	2 NS 1 A 1 MX	🔒 Secure