j-byg.dk

📜 Historical scan 2026-09-04 19:52:59 · ← 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 57ms

Nameserver	IP addresses	PTR	ASN / 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 2045ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
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 4039ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	outlook.cloud-mail.dk

📝 TXT Records#

1 records 230ms

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#

Policy	Record (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#

Policy	Record (_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

www	NXDOMAIN
www vs bare domain	Neither resolves j-byg.dk: no address www.j-byg.dk: no address
Wildcard	No

🔎 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#

2049ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

0ms

Field	Value
Serial	14
Primary NS (MNAME)	ns1.scf.dk
Responsible (RNAME)	hostmaster
Refresh	900s
Retry	600s
Expire	86400s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-17 05:08:35

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2024-05-21
Expires	2027-05-20 (212d)

🔗 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).

Domain	Registrar
cloud-mail.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

57ms

2030ms

2045ms

AAAA

44ms

TXT

230ms

CAA

54ms

HTTPS

4038ms

TLSA

77ms

SOA

0ms

MTA-STS

73ms

DNSSEC

2049ms

SRV

4039ms

Total

7478ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
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 shown	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