ledernespring.dk

📜 Historical scan 2026-06-24 04:15:48 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ledernespring.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 4 January 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.44.137.92 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by ledernespring-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 36ms

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 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.44.137.92	600s	netcompany.com	AS3292	TDC Holding A/S	5.44.136.0/21	🇩🇰 Denmark	—

📧 MX Records#

1 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	ledernespring-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca04::8 2a01:111:f403:ca04::a 2a01:111:f403:ca09::9 52.101.68.15 52.101.68.8 52.101.73.1 52.101.73.12	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am4pr0401cu00104.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	46.30.213.140

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 197ms

TXT Record
_ztb1jy74dlfqoxq3ttgxlk5u2mayodj
MS=ms88423689
v=spf1 include:spf.protection.outlook.com include:mailgun.org include:spf.emailsignatures365.com -all

✉️ SPF#

Policy	Record (ledernespring.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:mailgun.org include:spf.emailsignatures365.com -all

📨 DMARC#

Policy	Record (_dmarc.ledernespring.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email

📬 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 2026-10-14 16:17:27

www	5.44.137.92 (AS3292) (address records, no CNAME)
www vs bare domain	Same network ledernespring.dk: 5.44.137.92 (AS3292) www.ledernespring.dk: 5.44.137.92 (AS3292)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-ledernespring-dk._domainkey.lederne.onmicrosoft.com	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: 7/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

114ms

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

🏷️ SOA#

36ms

Field	Value
Serial	2026061501
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 2026-10-09 03:13:25

Field	Value
Registrar	ONE.COM A/S
Registered	2024-01-04
Expires	2027-01-03 (78d)

📋 WHOIS#

⏱️ Lookup Timing#

36ms

35ms

34ms

AAAA

35ms

TXT

197ms

CAA

35ms

HTTPS

40ms

TLSA

2036ms

SOA

36ms

MTA-STS

38ms

DNSSEC

114ms

SRV

118ms

Total

2652ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-25 19:09:57	928ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-28 06:44:14	1263ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 01:32:51	2054ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 03:43:46	786ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-19 06:42:00	9287ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 03:04:41	1214ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 04:15:48 shown	2652ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 17:36:55	2906ms	2 NS 1 A 1 MX	🔒 Secure