yu-sin.dk

Records from scan: 2026-10-10 18:58:28  ·  1613ms total  ·  last checked 2026-10-17 01:14 (unchanged)
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

yu-sin.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 30 March 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.240.137 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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records   183ms
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   169ms
IPTTLPTRASNISP / OrgCIDRCountryCity
77.111.240.137 3600s webcluster10.webpod11-cph3.one.com AS51468 One.com A/S 77.111.240.0/22 🇩🇰 Denmark Copenhagen

📧 MX Records#

4 records   187ms
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   176ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a02:2350:5:102:4c:f5ae:8859:f700 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   335ms
TXT Record
v=spf1 include:_custspf.one.com ~all

✉️ SPF#

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

📨 DMARC#

PolicyRecord (_dmarc.yu-sin.dk)
p=quarantine v=DMARC1; p=quarantine; rua=mailto:kontakt@yu-sin.dk ruf=mailto:kontakt@yu-sin.dk

📬 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 2026-10-10 18:58:28
www77.111.240.137 2a02:2350:5:102:4c:f5ae:8859:f700 (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   375ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 24F573980561755185B794745411B05D…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 24F573980561755185B794745411B05D…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 24F573980561755185B794745411B05D…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 24F573980561755185B794745411B05D…

🔐 DNSSEC#

262ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

88ms
FieldValue
Serial2026101005
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-10 19:13:36
FieldValue
RegistrarONE.COM A/S
Registered2022-03-30
Expires2027-03-29 (162d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
183ms
A
169ms
MX
187ms
AAAA
176ms
TXT
335ms
CAA
144ms
HTTPS
170ms
TLSA
375ms
SOA
88ms
MTA-STS
199ms
DNSSEC
262ms
SRV
183ms
Total
1613ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-10 18:58:28 shown 1613ms 2 NS 1 A 4 MX 🔒 Secure
2026-09-27 10:25:57 599ms 2 NS 1 A 4 MX 🔒 Secure
2026-09-24 16:39:26 739ms 2 NS 1 A 4 MX 🔒 Secure
2026-09-21 04:37:56 836ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-31 13:49:10 702ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-29 11:44:16 1823ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-25 05:25:22 4738ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-11 16:04:28 2269ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-12 03:37:25 4962ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-30 14:41:49 754ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-23 13:17:35 824ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-17 15:37:42 852ms 2 NS 1 A 4 MX 🔒 Secure
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