42u.dk

📜 Historical scan 2026-06-16 12:59:35  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

42u.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 26 February 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.88.14.84 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. 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   99ms
NameserverIP addressesPTRASN / ISP
ns01.one.com — — —
ns02.one.com — — —

🌍 A Records#

1 records   163ms
IPTTLPTRASNISP / OrgCIDRCountryCity
193.88.14.84 — — AS3292 TDC Holding A/S 193.88.0.0/15 🇩🇰 Denmark —

📧 MX Records#

5 records   114ms
PriorityTTLMail ServerIP addressesPTRASN
1 — aspmx.l.google.com 64.233.164.27 lf-in-f27.1e100.net AS15169 Google LLC
5 — alt1.aspmx.l.google.com 172.253.158.26 so-in-f26.1e100.net AS15169 Google LLC
5 — alt2.aspmx.l.google.com 172.253.158.26 so-in-f26.1e100.net AS15169 Google LLC
10 — alt3.aspmx.l.google.com 172.253.158.26 so-in-f26.1e100.net AS15169 Google LLC
10 — alt4.aspmx.l.google.com 192.178.230.26 yunrtab-in-f26.1e100.net AS15169 Google LLC

🔷 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 2026-10-12 01:51:32
www CNAME42u.dk (all on 42u.dk)
www vs bare domainSame network
42u.dk: 193.88.14.84 (AS3292)
www.42u.dk: 193.88.14.84 (AS3292)
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#

313ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

99ms
FieldValue
Serial2026032401
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-13 13:51:37
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2003-02-26
Expires2027-02-28 (132d)

🔗 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
hybrider.dkPunktum dk A/S (direct)
mazdastyle.dkPunktum dk A/S (direct)
probrid.dkPunktum dk A/S (direct)
tronkærlund.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
99ms
A
163ms
MX
114ms
AAAA
117ms
TXT
385ms
CAA
130ms
HTTPS
121ms
TLSA
2171ms
SOA
99ms
MTA-STS
133ms
DNSSEC
313ms
SRV
0ms
Total
3824ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-12 01:51:32 1646ms 2 NS 1 A 5 MX 🔒 Secure
2026-10-06 17:29:15 2216ms 2 NS 1 A 5 MX 🔒 Secure
2026-09-30 15:27:42 909ms 2 NS 1 A 5 MX 🔒 Secure
2026-09-22 05:47:06 2628ms 2 NS 1 A 5 MX 🔒 Secure
2026-08-25 19:35:22 848ms 2 NS 1 A 5 MX 🔒 Secure
2026-08-16 20:04:39 5792ms 2 NS 1 A 5 MX 🔒 Secure
2026-06-27 08:54:44 1987ms 2 NS 1 A 5 MX 🔒 Secure
2026-06-26 19:41:40 1982ms 2 NS 1 A 5 MX 🔒 Secure
2026-06-16 12:59:35 shown 3824ms 2 NS 1 A 5 MX 🔒 Secure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone