jbwu.dk

Records from scan: 2026-10-07 15:51:05 · 2185ms total · last checked 2026-10-17 00:57 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jbwu.dk is a .dk domain served by 3 nameservers (ns1.e-studio.dk, ns2.e-studio.dk, ns3.e-studio.dk). It was registered on 27 May 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.242.131.123 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by jbwu.dk. The zone is not DNSSEC-signed, publishes a 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#

3 records 42ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.e-studio.dk	195.242.131.5 2001:67c:564:fffc::11	ns1.e-studio.dk ns1.e-studio.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
ns2.e-studio.dk	2a00:1b18:2:3::2 62.69.152.34	ns2.e-studio.dk ns2.e-studio.dk	AS47527 DLX A/S AS47527 DLX A/S
ns3.e-studio.dk	193.200.90.183 2001:67c:564:fffc::13	ns3.e-studio.dk ns3.e-studio.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS

🌍 A Records#

1 records 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.242.131.123	14400s	sleipner.euhosting.dk	AS62121	Christian Ebsen ApS	195.242.130.0/23	🇩🇰 Denmark	—

📧 MX Records#

1 records 45ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	14400s	jbwu.dk	195.242.131.123	sleipner.euhosting.dk	AS62121 Christian Ebsen ApS

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	195.242.131.123
🔶 Autoconfig	195.242.131.123

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 114ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	cpanelemaildiscovery.cpanel.net

📝 TXT Records#

1 records 232ms

TXT Record
v=spf1 +a +mx +ip4:195.242.131.123 include:_spf.e-studio.dk ~all

✉️ SPF#

Policy	Record (jbwu.dk)
~all (soft fail)	v=spf1 +a +mx +ip4:195.242.131.123 include:_spf.e-studio.dk ~all

📨 DMARC#

Policy	Record (_dmarc.jbwu.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 2026-10-07 15:51:05

www CNAME	jbwu.dk (all on jbwu.dk) → 195.242.131.123 (AS62121)
www vs bare domain	Same network jbwu.dk: 195.242.131.123 (AS62121) www.jbwu.dk: 195.242.131.123 (AS62121)
Wildcard	No
Denial of existence	NSEC3 · 7 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.jbwu.dk	z6CDUEZyWfn5piZ8dqCkBxcu2SO05vPMEBqCkgJYShE

🔗 TLSA / DANE#

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

🔐 DNSSEC#

84ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA#

46ms

Field	Value
Serial	2026091701
Primary NS (MNAME)	ns1.e-studio.dk
Responsible (RNAME)	hostmaster@mailrelay.e-studio.dk
Refresh	3600s
Retry	1800s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-06 15:30:47

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2017-05-27
Expires	2027-05-31 (226d)

📋 WHOIS#

⏱️ Lookup Timing#

42ms

45ms

AAAA

64ms

TXT

232ms

CAA

55ms

HTTPS

32ms

TLSA

1755ms

SOA

46ms

MTA-STS

35ms

DNSSEC

84ms

SRV

114ms

Total

2185ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 15:51:05 shown	2185ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-28 00:52:11	496ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-23 13:12:22	1271ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-28 01:35:48	580ms	3 NS 1 A 1 MX	🔓 Insecure
2026-07-20 05:19:24	8976ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-17 13:21:25	2139ms	3 NS 1 A 1 MX	🔓 Insecure