leerdammer.dk

📜 Historical scan 2026-06-18 05:32:11 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

leerdammer.dk is a .dk domain served by 3 nameservers (nsa.perf1.fr, nsb.perf1.com, nsc.perf1.com). It was registered on 25 May 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 45.223.137.80 is hosted by Incapsula Inc (AS19551) in United States. Mail is handled by mail.leerdammer.dk. The zone is not DNSSEC-signed, 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#

3 records 51ms

Nameserver	IP addresses	PTR	ASN / ISP
nsa.perf1.fr	2a01:c8:100::100 81.92.94.100	nsa.perf1.fr nsa.perf1.fr	AS20756 Nameshield SAS AS20756 Nameshield SAS
nsb.perf1.com	2a01:c8:101::100 81.92.95.100	nsb.perf1.com nsb.perf1.com	AS20756 Nameshield SAS AS20756 Nameshield SAS
nsc.perf1.com	152.89.172.100 2a09:35c0:102::100	nsc.perf1.com nsc.perf1.com	AS209510 Nameshield SAS AS209510 Nameshield SAS

🌍 A Records#

2 records 89ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
45.223.137.80	—	—	AS19551	Incapsula Inc	45.223.128.0/19	🇺🇸 United States	—
45.223.147.80	—	—	AS19551	Incapsula Inc	45.223.128.0/19	🇺🇸 United States	—

📧 MX Records#

1 records 65ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mail.leerdammer.dk	195.64.164.240	basic-mail.safebrands.com	AS196763 Key-Systems GmbH

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 178ms

TXT Record
_pki-validation.leerdammer.dk
v=spf1 -all

✉️ SPF#

Policy	Record (leerdammer.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.leerdammer.dk)
p=reject	v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

📬 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 2026-10-07 17:09:45

www CNAME	xj5yfeu.impervadns.net (all on impervadns.net) → 45.223.139.80 (AS19551)
www vs bare domain	Same network leerdammer.dk: 45.223.137.80 45.223.147.80 (AS19551) www.leerdammer.dk: 45.223.139.80 (AS19551)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

88ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

53ms

Field	Value
Serial	2024012414
Primary NS (MNAME)	nsa.perf1.fr
Responsible (RNAME)	technical@nameshield.net
Refresh	28800s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	7200s

📋 Registration#

WHOIS fetched 2026-10-20 21:27:03

Field	Value
Registrar	NAMESHIELD
Registered	2012-05-25
Expires	2030-05-31 (1315d)

🔗 Same registrant#

0 domains

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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

51ms

89ms

65ms

AAAA

76ms

TXT

178ms

CAA

63ms

HTTPS

116ms

TLSA

99ms

SOA

53ms

MTA-STS

80ms

DNSSEC

88ms

SRV

97ms

Total

620ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 17:09:45	654ms	3 NS 2 A 1 MX	🔓 Insecure
2026-09-30 10:42:06	790ms	3 NS 2 A 1 MX	🔓 Insecure
2026-09-16 03:46:42	4635ms	3 NS 2 A 1 MX	🔓 Insecure
2026-09-06 16:22:08	651ms	3 NS 2 A 1 MX	🔓 Insecure
2026-06-27 05:16:23	2562ms	3 NS 2 A 1 MX	🔓 Insecure
2026-06-26 04:55:35	1750ms	3 NS 2 A 1 MX	🔓 Insecure
2026-06-18 05:32:11 shown	620ms	3 NS 2 A 1 MX	🔓 Insecure