clausiversen.dk

📜 Historical scan 2026-10-01 13:58:23 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

clausiversen.dk is a .dk domain served by 2 nameservers (keyla.ns.cloudflare.com, ned.ns.cloudflare.com). It was registered on 23 November 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.4.238 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by clausiversen.dk.mx.one.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 82ms

Nameserver	IP addresses	PTR	ASN / ISP
keyla.ns.cloudflare.com	108.162.194.170 162.159.38.170 172.64.34.170 2606:4700:50::a29f:26aa 2803:f800:50::6ca2:c2aa 2a06:98c1:50::ac40:22aa	keyla.ns.cloudflare.com keyla.ns.cloudflare.com keyla.ns.cloudflare.com keyla.ns.cloudflare.com keyla.ns.cloudflare.com keyla.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ned.ns.cloudflare.com	108.162.193.210 172.64.33.210 173.245.59.210 2606:4700:58::adf5:3bd2 2803:f800:50::6ca2:c1d2 2a06:98c1:50::ac40:21d2	ned.ns.cloudflare.com ned.ns.cloudflare.com ned.ns.cloudflare.com ned.ns.cloudflare.com ned.ns.cloudflare.com ned.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 90ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.4.238	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.154.65	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 203ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	clausiversen.dk.mx.one.com	104.37.34.246 104.37.34.247 104.37.34.248 104.37.34.249	mx1.pub.mailpod12-cph3.one.com mx2.pub.mailpod12-cph3.one.com mx3.pub.mailpod12-cph3.one.com mx4.pub.mailpod12-cph3.one.com	AS51468 One.com A/S AS51468 One.com A/S AS51468 One.com A/S AS51468 One.com A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.4.238
🔶 Autoconfig	104.21.4.238

🔷 AAAA Records (IPv6)#

2 records 114ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:4ee	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:9a41	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 171ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.4.238,172.67.154.65 ech=AEX+DQBBVAAgACAUrhUriyuEYV/+n99qKxc958nkOydEDspI59BvyDDcfgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:4ee,2606:4700:3034::ac43:9a41

📝 TXT Records#

2 records 873ms

TXT Record
google-site-verification=nLweK8QdZXQsaRk5IvKVhLlVlS8aVJJCfyNlzuHs7o4
v=spf1 include:_custspf.one.com ~all

✉️ SPF#

Policy	Record (clausiversen.dk)
~all (soft fail)	v=spf1 include:_custspf.one.com ~all

📨 DMARC#

Policy	Record (_dmarc.clausiversen.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:d255b76d532e4205a0b589161ab0f4b7@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 2026-10-13 04:50:27

www	104.21.4.238 172.67.154.65 2606:4700:3031::6815:4ee 2606:4700:3034::ac43:9a41 (AS13335) (address records, no CNAME)
www vs bare domain	Same network clausiversen.dk: 104.21.4.238 172.67.154.65 2606:4700:3031::6815:4ee 2606:4700:3034::ac43:9a41 (AS13335) www.clausiversen.dk: 104.21.4.238 172.67.154.65 2606:4700:3031::6815:4ee 2606:4700:3034::ac43:9a41 (AS13335)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

691ms

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

🏷️ SOA#

161ms

Field	Value
Serial	2416314429
Primary NS (MNAME)	keyla.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-21 18:06:54

Field	Value
Registrar	ONE.COM A/S
Registered	2018-11-23
Expires	2026-11-30 (38d)

🔗 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
civersen.dk	ONE.COM A/S
paranormal-efterforskning.dk	ONE.COM A/S

📋 WHOIS#

⏱️ Lookup Timing#

82ms

90ms

203ms

AAAA

114ms

TXT

873ms

CAA

191ms

HTTPS

171ms

TLSA

503ms

SOA

161ms

MTA-STS

301ms

DNSSEC

691ms

SRV

325ms

Total

2560ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 04:50:27	1449ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-01 13:58:23 shown	2560ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-23 12:20:25	774ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-17 02:40:59	844ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 16:33:54	1144ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-08 05:00:35	9058ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-17 07:41:22	5133ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-08 12:53:41	1763ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-18 12:43:21	3768ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 21:10:25	516ms	2 NS 2 A 1 MX	🔓 Insecure