21752754.dk

📜 Historical scan 2026-06-26 06:36:00  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

21752754.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 8 December 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.166 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com and 2 more. The zone is DNSSEC-signed and validates, 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   50ms
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   51ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.30.215.166 3600s webcluster2.webpod17-cph3.one.com AS51468 One.com A/S 46.30.208.0/21 🇩🇰 Denmark Copenhagen

📧 MX Records#

4 records   45ms
PriorityTTLMail ServerIP addressesPTRASN
10 10800s mx1.pub.mailpod11-cph3.one.com 104.37.34.230 mx1.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 10800s mx2.pub.mailpod11-cph3.one.com 104.37.34.231 mx2.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 10800s mx3.pub.mailpod11-cph3.one.com 104.37.34.232 mx3.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 10800s mx4.pub.mailpod11-cph3.one.com 104.37.34.233 mx4.pub.mailpod11-cph3.one.com AS51468 One.com A/S

🔷 AAAA Records (IPv6)#

1 records   44ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a02:2350:5:106:8030:7547:c952:d5fc 3600s — AS51468 One.com A/S 2a02:2350:0:0:0:0:0:0/32 🇩🇰 Denmark Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   160ms
TXT Record
v=spf1 include:_custspf.one.com ~all

✉️ SPF#

PolicyRecord (21752754.dk)
~all (soft fail) v=spf1 include:_custspf.one.com ~all

📨 DMARC#

PolicyRecord (_dmarc.21752754.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:postmaster@21752754.dk; ruf=mailto:postmaster@21752754.dk; fo=1

📬 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 2026-10-11 03:44:34
www46.30.215.166 2a02:2350:5:106:8030:7547:c952:d5fc (AS51468) (address records, no CNAME)
www vs bare domainSame network
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

4 records   69ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…

🔐 DNSSEC#

492ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

47ms
FieldValue
Serial2026061901
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-07 00:13:34
FieldValue
RegistrarONE.COM A/S
Registered2008-12-08
Expires2026-12-31 (75d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
50ms
A
51ms
MX
45ms
AAAA
44ms
TXT
160ms
CAA
43ms
HTTPS
43ms
TLSA
69ms
SOA
47ms
MTA-STS
424ms
DNSSEC
492ms
SRV
496ms
Total
982ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-06 23:52:35 1602ms 2 NS 1 A 4 MX 🔒 Secure
2026-09-18 14:08:13 582ms 2 NS 1 A 4 MX 🔒 Secure
2026-09-09 14:52:48 615ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-28 06:52:22 1008ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-18 10:42:52 1050ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-07 13:13:00 929ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-23 03:06:21 4886ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-20 10:33:43 32872ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-08 10:31:08 9114ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-26 06:36:00 shown 982ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-23 03:22:25 1119ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-23 00:08:11 1057ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-16 13:27:02 11857ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-16 13:12:49 927ms 2 NS 1 A 4 MX 🔒 Secure
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