lennartc.dk

📜 Historical scan 2026-06-26 19:10:24 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

lennartc.dk is a .dk domain served by 2 nameservers (ali.ns.cloudflare.com, terin.ns.cloudflare.com). It was registered on 7 January 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.65.152 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.lennartc.dk. 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 33ms

Nameserver	IP addresses	PTR	ASN / ISP
ali.ns.cloudflare.com	108.162.192.59 172.64.32.59 173.245.58.59 2606:4700:50::adf5:3a3b 2803:f800:50::6ca2:c03b 2a06:98c1:50::ac40:203b	ali.ns.cloudflare.com ali.ns.cloudflare.com ali.ns.cloudflare.com ali.ns.cloudflare.com ali.ns.cloudflare.com ali.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
terin.ns.cloudflare.com	108.162.193.236 172.64.33.236 173.245.59.236 2606:4700:58::adf5:3bec 2803:f800:50::6ca2:c1ec 2a06:98c1:50::ac40:21ec	terin.ns.cloudflare.com terin.ns.cloudflare.com terin.ns.cloudflare.com terin.ns.cloudflare.com terin.ns.cloudflare.com terin.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 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.65.152	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.146.174	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 61ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.lennartc.dk	5.134.12.217	pro.c-co.dk	AS34282 Team Blue Carrier Limited

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	5.134.12.217
🔶 Autoconfig	5.134.12.217

🔷 AAAA Records (IPv6)#

2 records 46ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::ac43:92ae	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:4198	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 28ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.65.152,172.67.146.174 ech=AEX+DQBBlwAgACB+ciQ+l2wEL94m6PYkHzTK9yvOcPJbXGssVUG3D40cegAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:92ae,2606:4700:3035::6815:4198

📝 TXT Records#

2 records 163ms

TXT Record
google-site-verification=Wm_peCfrmD28srlcwK0R7Odra11k1H2qYF44_VbgqTE
v=spf1 +a +mx ip4:5.134.9.155 ip4:5.134.12.217 ~all

✉️ SPF#

Policy	Record (lennartc.dk)
~all (soft fail)	v=spf1 +a +mx ip4:5.134.9.155 ip4:5.134.12.217 ~all

📨 DMARC#

Policy	Record (_dmarc.lennartc.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:4690966ec09842688c897a4e495cd5ba@dmarc-reports.cloudflare.net

📬 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 2026-10-11 01:30:03

www	104.21.65.152 172.67.146.174 2606:4700:3034::ac43:92ae 2606:4700:3035::6815:4198 (AS13335) (address records, no CNAME)
www vs bare domain	Same network lennartc.dk: 104.21.65.152 172.67.146.174 2606:4700:3034::ac43:92ae 2606:4700:3035::6815:4198 (AS13335) www.lennartc.dk: 104.21.65.152 172.67.146.174 2606:4700:3034::ac43:92ae 2606:4700:3035::6815:4198 (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	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#

112ms

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	2407940672
Primary NS (MNAME)	ali.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-06 23:43:22

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2016-01-07
Expires	2027-07-31 (283d)

📋 WHOIS#

⏱️ Lookup Timing#

33ms

39ms

61ms

AAAA

46ms

TXT

163ms

CAA

29ms

HTTPS

28ms

TLSA

55ms

SOA

0ms

MTA-STS

51ms

DNSSEC

112ms

SRV

73ms

Total

870ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-06 23:21:37	1593ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 22:04:57	630ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-27 07:12:38	868ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-11 20:11:00	1847ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 01:58:22	1191ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 01:46:39	710ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-24 06:43:39	4032ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-08 17:11:50	1066ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-26 19:10:24 shown	870ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-25 08:26:04	1328ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 15:22:19	792ms	2 NS 2 A 1 MX	🔓 Insecure