lzk.dk

📜 Historical scan 2026-09-18 09:20:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

lzk.dk is a .dk domain served by 2 nameservers (kami.ns.cloudflare.com, tim.ns.cloudflare.com). It was registered on 4 November 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.4.70 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by lzk-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 127ms

Nameserver	IP addresses	PTR	ASN / ISP
kami.ns.cloudflare.com	108.162.192.177 172.64.32.177 173.245.58.177 2606:4700:50::adf5:3ab1 2803:f800:50::6ca2:c0b1 2a06:98c1:50::ac40:20b1	kami.ns.cloudflare.com kami.ns.cloudflare.com kami.ns.cloudflare.com kami.ns.cloudflare.com kami.ns.cloudflare.com kami.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
tim.ns.cloudflare.com	108.162.193.145 172.64.33.145 173.245.59.145 2606:4700:58::adf5:3b91 2803:f800:50::6ca2:c191 2a06:98c1:50::ac40:2191	tim.ns.cloudflare.com tim.ns.cloudflare.com tim.ns.cloudflare.com tim.ns.cloudflare.com tim.ns.cloudflare.com tim.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 118ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.4.70	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.131.192	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 150ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	lzk-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca04::c 2a01:111:f403:ca21::10 2a01:111:f403:ca48::8 52.101.209.153 52.101.209.31 52.101.68.16 52.101.91.162	mail-db7pr03cu00601.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-matpr05cu00100.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-db4pr02cu00400.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 → 40.104.116.56
🔶 Autoconfig	104.21.4.70

🔷 AAAA Records (IPv6)#

2 records 137ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:83c0	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::6815:446	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 142ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.4.70,172.67.131.192 ech=AEX+DQBBOgAgACBEeAX/CpAAJ6KZcCT3zdvG7bAuMUaUHfQY/pi1vvqrCAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:83c0,2606:4700:3031::6815:446

📝 TXT Records#

3 records 272ms

TXT Record
google-site-verification=PLd54kQpVWqihEevCwYtzA0mC_stLTc5yxSrGQAIW8A
MS=ms10546334
v=spf1 include:spf.protection.outlook.com include:_custspf.one.com -all

✉️ SPF#

Policy	Record (lzk.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:_custspf.one.com -all

📨 DMARC#

Policy	Record (_dmarc.lzk.dk)
p=quarantine	v=DMARC1;ptc=100;p=quarantine

📬 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 03:05:54

www	104.21.4.70 172.67.131.192 2606:4700:3030::ac43:83c0 2606:4700:3031::6815:446 (AS13335) (address records, no CNAME)
www vs bare domain	Same network lzk.dk: 104.21.4.70 172.67.131.192 2606:4700:3030::ac43:83c0 2606:4700:3031::6815:446 (AS13335) www.lzk.dk: 104.21.4.70 172.67.131.192 2606:4700:3030::ac43:83c0 2606:4700:3031::6815:446 (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-lzk-dk._domainkey.lzkoreskoledk.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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

174ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2414878759
Primary NS (MNAME)	kami.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-11 18:36:24

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-11-04
Expires	2026-11-30 (40d)

🔗 Same registrant#

2 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).

Domain	Registrar
lz-k.dk	Simply.com A/S
lzdm.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

127ms

118ms

150ms

AAAA

137ms

TXT

272ms

CAA

110ms

HTTPS

142ms

TLSA

923ms

SOA

0ms

MTA-STS

106ms

DNSSEC

174ms

SRV

265ms

Total

2036ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 03:05:54	808ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 11:41:10	910ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-28 04:44:45	1806ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-26 04:17:28	1081ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-18 09:20:27 shown	2036ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-31 10:24:58	1211ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-29 12:13:42	960ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-17 16:03:55	1769ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-29 16:01:22	1284ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-24 12:32:34	1181ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 07:50:14	1514ms	2 NS 2 A 1 MX	🔓 Insecure