51804020.dk

📜 Historical scan 2026-06-16 13:14:37  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

51804020.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 27 January 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 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   110ms
NameserverIP addressesPTRASN / ISP
ns01.one.com — — —
ns02.one.com — — —

🌍 A Records#

🌍
No A records found

📧 MX Records#

7 records   117ms
PriorityTTLMail ServerIP addressesPTRASN
10 — aspmx.l.google.com 173.194.222.26 lo-in-f26.1e100.net AS15169 Google LLC
20 — alt1.aspmx.l.google.com 172.253.158.27 so-in-f27.1e100.net AS15169 Google LLC
20 — alt2.aspmx.l.google.com 172.253.158.26 so-in-f26.1e100.net AS15169 Google LLC
30 — aspmx2.googlemail.com 192.178.211.27 lcbomp-in-f27.1e100.net AS15169 Google LLC
30 — aspmx3.googlemail.com 142.251.127.26 lcfrai-in-f26.1e100.net AS15169 Google LLC
30 — aspmx4.googlemail.com 142.250.147.26 rd-in-f26.1e100.net AS15169 Google LLC
30 — aspmx5.googlemail.com 172.253.152.27 yulpptr-in-f27.1e100.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 2026-10-13 05:27:40
www46.30.211.38 (AS51468) (address records, no CNAME)
www vs bare domainOnly www resolves
51804020.dk: no address
www.51804020.dk: 46.30.211.38 (AS51468)
(all like this)
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

215ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset

🏷️ SOA#

107ms
FieldValue
Serial2026061201
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-14 07:03:29
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2005-01-27
Expires2027-01-31 (104d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet
📋 WHOIS#

⏱️ Lookup Timing#

NS
110ms
A
99ms
MX
117ms
AAAA
104ms
TXT
150ms
CAA
114ms
HTTPS
108ms
TLSA
54ms
SOA
107ms
MTA-STS
51ms
DNSSEC
215ms
SRV
0ms
Total
863ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-13 05:27:40 522ms 2 NS 0 A 7 MX 🔒 Secure
2026-09-27 20:29:52 715ms 2 NS 0 A 7 MX 🔒 Secure
2026-09-14 16:14:21 1017ms 2 NS 0 A 7 MX 🔒 Secure
2026-08-28 08:17:48 774ms 2 NS 0 A 7 MX 🔒 Secure
2026-08-26 20:19:33 1078ms 2 NS 0 A 7 MX 🔒 Secure
2026-08-14 14:32:00 5297ms 2 NS 0 A 7 MX 🔒 Secure
2026-07-18 18:58:53 9238ms 2 NS 0 A 7 MX 🔒 Secure
2026-07-17 09:56:56 5222ms 2 NS 0 A 7 MX 🔒 Secure
2026-07-15 08:02:47 5221ms 2 NS 0 A 7 MX 🔒 Secure
2026-07-13 19:16:13 1686ms 2 NS 0 A 7 MX 🔒 Secure
2026-06-18 12:59:50 849ms 2 NS 0 A 7 MX 🔒 Secure
2026-06-16 13:14:37 shown 863ms 2 NS 0 A 7 MX 🔒 Secure
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