y-klassen.dk

📜 Historical scan 2026-06-18 06:01:56  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

y-klassen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 5 September 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by y-klassen.dk. The zone is DNSSEC-signed and validates, has no 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#

2 records   117ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S

🌍 A Records#

1 records   118ms
IPTTLPTRASNISP / OrgCIDRCountryCity
188.138.106.84 — zebra484.startdedicated.net AS29066 — — — —

📧 MX Records#

1 records   149ms
PriorityTTLMail ServerIP addressesPTRASN
10 — y-klassen.dk 188.138.106.84 zebra484.startdedicated.net AS29066 velia.net Internetdienste GmbH

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscovery-klassen.dk → 188.138.106.84
🔶 Autoconfigy-klassen.dk → 188.138.106.84

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝
No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-08 20:19:05
www CNAMEy-klassen.dk (all on y-klassen.dk)
www vs bare domainSame network
y-klassen.dk: 188.138.106.84 (AS29066)
www.y-klassen.dk: 188.138.106.84 (AS29066)
WildcardYes: any name under the zone resolves
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

199ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

124ms
FieldValue
Serial2026052501
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-11 18:03:33
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2000-09-05
Expires2027-09-30 (342d)

🔗 Same registrant#

4 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).

DomainRegistrar
birkelund.dkPunktum dk A/S (direct)
hui96.dkPunktum dk A/S (direct)
megastore.dkPunktum dk A/S (direct)
stævneservice.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
117ms
A
118ms
MX
149ms
AAAA
115ms
TXT
292ms
CAA
110ms
HTTPS
77ms
TLSA
255ms
SOA
124ms
MTA-STS
111ms
DNSSEC
199ms
SRV
157ms
Total
1103ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-30 19:14:30 657ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-26 14:19:14 647ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-20 21:13:35 1002ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-17 19:09:02 4663ms 2 NS 1 A 1 MX 🔒 Secure
2026-08-26 23:03:17 520ms 2 NS 1 A 1 MX 🔒 Secure
2026-07-27 00:56:37 2600ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-28 07:07:07 738ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-27 11:53:22 614ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-27 05:58:55 2062ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-21 00:07:49 569ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-18 06:01:56 shown 1103ms 2 NS 1 A 1 MX 🔒 Secure
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