j2b.dk

Records from scan: 2026-10-04 07:29:12 · 417ms total · last checked 2026-10-17 11:21 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

j2b.dk is a .dk domain served by 2 nameservers (ns1.atznet.dk, ns2.atznet.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.242.130.101 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by mx4.spamfri.dk, mx2.spamfri.dk and 1 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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 31ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.atznet.dk	195.242.130.110 2001:67c:564:fffb::ffff	ns1.atznet.dk —	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
ns2.atznet.dk	2a00:1b18:2:3:2::2 62.69.152.36	ns2.atznet.dk ns2.atznet.dk	AS47527 DLX A/S AS47527 DLX A/S

🌍 A Records#

1 records 31ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.242.130.101	3600s	web4.atznet.dk	AS62121	Christian Ebsen ApS	195.242.130.0/23	🇩🇰 Denmark	—

📧 MX Records#

3 records 27ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx4.spamfri.dk	193.200.91.108 2001:67c:564:fffd::4001	mx4.spamfri.dk mx4.spamfri.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
20	3600s	mx2.spamfri.dk	193.200.91.109 2001:67c:564:fffd::2001	mx2.spamfri.dk mx2.spamfri.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
30	3600s	mx3.spamfri.dk	2a00:1b18:2:3:fe::2 62.69.152.43	mx3.spamfri.dk mx3.spamfri.dk	AS47527 DLX A/S AS47527 DLX A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	195.242.130.101
🔶 Autoconfig	195.242.130.101

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 124ms

TXT Record
v=spf1 include:_spf.atznet.dk -all

✉️ SPF#

Policy	Record (j2b.dk)
-all (hard fail)	v=spf1 include:_spf.atznet.dk -all

📨 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#

checked 2026-10-15 09:19:24

www CNAME	j2b.dk (all on j2b.dk) → 195.242.130.101 (AS62121)
www vs bare domain	Same network j2b.dk: 195.242.130.101 (AS62121) www.j2b.dk: 195.242.130.101 (AS62121)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

3 records 49ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx2.spamfri.dk	DANE-EE · SPKI · SHA-256	6598C93F79B95376BB8099E9AC862167…
SMTP _25._tcp.mx3.spamfri.dk	DANE-EE · SPKI · SHA-256	BBFB0694919290E5BC9D6E2C6F47D846…
SMTP _25._tcp.mx4.spamfri.dk	DANE-EE · SPKI · SHA-256	4EE743A99328AEF5142706CA5FD3AD61…

🔐 DNSSEC#

60ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

23ms

Field	Value
Serial	2019102906
Primary NS (MNAME)	ns1.atznet.dk
Responsible (RNAME)	hostmaster@atznet.dk
Refresh	86400s
Retry	7200s
Expire	3600000s
Minimum (neg-cache TTL)	172800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

31ms

27ms

AAAA

36ms

TXT

124ms

CAA

32ms

HTTPS

43ms

TLSA

49ms

SOA

23ms

MTA-STS

50ms

DNSSEC

60ms

SRV

51ms

Total

417ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 07:29:12 shown	417ms	2 NS 1 A 3 MX	🔒 Secure
2026-09-25 22:26:55	595ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-25 17:13:47	815ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-21 13:29:23	1175ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 07:54:16	3061ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-18 07:52:18	3903ms	2 NS 1 A 3 MX	🔒 Secure