clasi.dk

Records from scan: 2026-10-07 23:12:36 · 1004ms total · last checked 2026-10-16 11:41 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

clasi.dk is a .dk domain served by 3 nameservers (ns4.dns-123.net, ns5.dns-123.net, ns6.dns-123.net). It was registered on 13 October 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.103.46.101 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by mail.clasi.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 57ms

Nameserver	IP addresses	PTR	ASN / ISP
ns4.dns-123.net	35.198.132.83	83.132.198.35.bc.googleusercontent.com	AS396982 Google LLC
ns5.dns-123.net	35.187.184.173	173.184.187.35.bc.googleusercontent.com	AS396982 Google LLC
ns6.dns-123.net	35.228.54.1	1.54.228.35.bc.googleusercontent.com	AS396982 Google LLC

🌍 A Records#

1 records 57ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.103.46.101	7200s	server6101.serverpark.dk	AS44869	FIBIA P/S	5.103.0.0/16	🇩🇰 Denmark	Ringsted

📧 MX Records#

1 records 56ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	7200s	mail.clasi.dk	5.103.46.101	server6101.serverpark.dk	AS44869 FIBIA P/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	5.103.46.101
🔶 Autoconfig	5.103.46.101

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 579ms

TXT Record
v=spf1 a mx include:_spf.serverpark.dk ~all

✉️ SPF#

Policy	Record (clasi.dk)
~all (soft fail)	v=spf1 a mx include:_spf.serverpark.dk ~all

📨 DMARC#

Policy	Record (_dmarc.clasi.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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#

checked 2026-10-07 23:12:36

www	5.103.46.101 (AS44869) (address records, no CNAME)
www vs bare domain	Same network clasi.dk: 5.103.46.101 (AS44869) www.clasi.dk: 5.103.46.101 (AS44869)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

68ms

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

🏷️ SOA#

74ms

Field	Value
Serial	2024111201
Primary NS (MNAME)	ns4.dns-123.net
Responsible (RNAME)	admin@dns-123.net
Refresh	28800s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-11 11:17:53

Field	Value
Registrar	INTERNET 123 ApS
Registered	2023-10-13
Expires	2027-10-12 (360d)

🔗 Same registrant#

1 domain

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
thecollection.dk	ONE.COM A/S

📋 WHOIS#

⏱️ Lookup Timing#

57ms

56ms

AAAA

64ms

TXT

579ms

CAA

70ms

HTTPS

68ms

TLSA

213ms

SOA

74ms

MTA-STS

97ms

DNSSEC

68ms

SRV

226ms

Total

1004ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 23:12:36 shown	1004ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-02 04:09:12	2504ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-27 16:08:11	1084ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-26 23:23:14	2537ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-25 15:37:12	1884ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-21 09:29:34	654ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-20 18:05:46	923ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 21:05:38	592ms	3 NS 1 A 1 MX	🔒 Secure