j-byg.dk

📜 Historical scan 2026-06-25 05:49:36  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

j-byg.dk is a .dk domain served by 3 nameservers (ns1.scf.dk, ns2.scf.dk, ns3.scf.dk). It was registered on 21 May 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by outlook.cloud-mail.dk. The zone is not DNSSEC-signed, publishes a 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#

3 records   56ms
NameserverIP addressesPTRASN / ISP
ns1.scf.dk 80.208.56.222 outlook.saass.dk AS44869 FIBIA P/S
ns2.scf.dk 5.103.184.171 outlook.cloud-mail.dk AS44869 FIBIA P/S
ns3.scf.dk 5.103.12.92 5.103.12.92.static.fibianet.dk AS44869 FIBIA P/S

🌍 A Records#

🌍
No A records found

📧 MX Records#

1 records   80ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s outlook.cloud-mail.dk 5.103.184.171 outlook.cloud-mail.dk AS44869 FIBIA P/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records   480ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 0 0 443 outlook.cloud-mail.dk

📝 TXT Records#

1 records   653ms
TXT Record
v=spf1 ip4:5.103.12.90/32 ip4:5.103.12.91/32 ip4:80.208.56.222/32 a:outlook.cloud-mail.dk -all

✉️ SPF#

PolicyRecord (j-byg.dk)
-all (hard fail) v=spf1 ip4:5.103.12.90/32 ip4:5.103.12.91/32 ip4:80.208.56.222/32 a:outlook.cloud-mail.dk -all

📨 DMARC#

PolicyRecord (_dmarc.j-byg.dk)
p=quarantine v=DMARC1;p=quarantine;sp=reject;pct=100;ruf=mailto:hostmaster@saass.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#

latest probe, not this scan · checked 2026-10-19 09:33:56
wwwNXDOMAIN
www vs bare domainNeither resolves
j-byg.dk: no address
www.j-byg.dk: no address
WildcardNo

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

509ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsresolution failed: ncache nxrrset

🏷️ SOA#

0ms
FieldValue
Serial13
Primary NS (MNAME)ns1.scf.dk
Responsible (RNAME)hostmaster
Refresh900s
Retry600s
Expire86400s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-17 05:08:35
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2024-05-21
Expires2027-05-20 (209d)

🔗 Same registrant#

1 domain

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
cloud-mail.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
56ms
A
75ms
MX
80ms
AAAA
450ms
TXT
653ms
CAA
60ms
HTTPS
63ms
TLSA
475ms
SOA
0ms
MTA-STS
452ms
DNSSEC
509ms
SRV
480ms
Total
6936ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-19 09:33:56 5033ms 3 NS 0 A 1 MX 🔓 Insecure
2026-10-12 01:57:55 2989ms 3 NS 0 A 1 MX 🔓 Insecure
2026-10-11 01:08:21 7070ms 3 NS 0 A 1 MX 🔓 Insecure
2026-10-07 19:53:02 2969ms 3 NS 0 A 1 MX 🔓 Insecure
2026-10-06 19:51:19 2621ms 3 NS 0 A 1 MX 🔓 Insecure
2026-10-05 16:32:38 1841ms 3 NS 0 A 1 MX 🔓 Insecure
2026-10-04 16:29:35 6341ms 3 NS 0 A 1 MX 🔓 Insecure
2026-09-30 16:03:32 2963ms 3 NS 0 A 1 MX 🔓 Insecure
2026-09-29 15:50:56 2925ms 3 NS 0 A 1 MX 🔓 Insecure
2026-09-27 15:34:15 3025ms 3 NS 0 A 1 MX 🔓 Insecure
2026-09-25 15:13:22 5472ms 3 NS 0 A 1 MX 🔓 Insecure
2026-09-23 14:21:56 9621ms 3 NS 0 A 0 MX 🔓 Insecure
2026-09-20 14:55:23 4944ms 3 NS 0 A 1 MX 🔓 Insecure
2026-09-04 19:52:59 7478ms 3 NS 0 A 1 MX 🔓 Insecure
2026-08-29 07:45:39 6459ms 3 NS 0 A 1 MX 🔓 Insecure
2026-08-25 11:17:44 8352ms 3 NS 0 A 1 MX 🔓 Insecure
2026-08-24 18:16:18 10219ms 3 NS 0 A 1 MX ❓ Unknown
2026-08-22 13:37:44 13426ms 3 NS 0 A 1 MX 🔓 Insecure
2026-08-19 08:56:46 10457ms 3 NS 0 A 1 MX 🔓 Insecure
2026-08-16 04:02:16 8696ms 3 NS 0 A 1 MX 🔓 Insecure
2026-08-14 22:04:04 8007ms 3 NS 0 A 1 MX 🔓 Insecure
2026-08-09 15:28:52 10953ms 3 NS 0 A 1 MX 🔓 Insecure
2026-07-27 16:11:23 3884ms 3 NS 0 A 1 MX 🔓 Insecure
2026-07-26 16:00:45 16423ms 3 NS 0 A 1 MX 🔓 Insecure
2026-07-22 08:16:39 10590ms 3 NS 0 A 1 MX 🔓 Insecure
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