jsch.dk

📜 Historical scan 2026-06-18 08:09:40 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jsch.dk is a .dk domain served by 3 nameservers (ns1.e-studio.dk, ns2.e-studio.dk, ns3.e-studio.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.200.90.178 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by mx1.spamfri.dk, mx2.spamfri.dk and 1 more. The zone is DNSSEC-signed but currently fails validation, 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 220ms

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 34.34-46.152.69.62.in-addr.arpa	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 280ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.200.90.178	—	web6.e-studio.dk	AS62121	Christian Ebsen ApS	193.200.90.0/23	🇩🇰 Denmark	—

📧 MX Records#

3 records 319ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx1.spamfri.dk	195.242.131.16 2001:67c:564:fffd::1001	mx1.spamfri.dk mx1.spamfri.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
20	—	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	—	mx3.spamfri.dk	2a00:1b18:2:3:fe::2 62.69.152.43 62.69.152.43	mx3.spamfri.dk 43.34-46.152.69.62.in-addr.arpa mx3.spamfri.dk	AS47527 DLX A/S AS47527 DLX A/S AS47527 DLX A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	193.200.90.178
🔶 Autoconfig	193.200.90.178

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 338ms

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

📝 TXT Records#

1 records 706ms

TXT Record
v=spf1 +a +mx +ip4:193.200.90.178 include:_spf.e-studio.dk ~all

✉️ SPF#

Policy	Record (jsch.dk)
~all (soft fail)	v=spf1 +a +mx +ip4:193.200.90.178 include:_spf.e-studio.dk ~all

📨 DMARC#

Policy	Record (_dmarc.jsch.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#

latest probe, not this scan · checked 2026-10-09 21:38:30

www CNAME	jsch.dk (all on jsch.dk) → 193.200.90.178 (AS62121)
www vs bare domain	Same network jsch.dk: 193.200.90.178 (AS62121) www.jsch.dk: 193.200.90.178 (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

🔗 TLSA / DANE#

3 records 359ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.spamfri.dk	DANE-EE · SPKI · SHA-256	884451547A03D0AC2F628D943839BAA6…
SMTP _25._tcp.mx2.spamfri.dk	DANE-EE · SPKI · SHA-256	6598C93F79B95376BB8099E9AC862167…
SMTP _25._tcp.mx3.spamfri.dk	DANE-EE · SPKI · SHA-256	BBFB0694919290E5BC9D6E2C6F47D846…

🔐 DNSSEC#

466ms

Check	Result
Validation Status	⚠️ Bogus
AD Flag (resolver validates)	✗ Not set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	broken trust chain resolving 'jsch.dk/A/IN': 127.0.0.1#53

🏷️ SOA#

149ms

Field	Value
Serial	2026042501
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#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

220ms

280ms

319ms

AAAA

187ms

TXT

706ms

CAA

316ms

HTTPS

339ms

TLSA

359ms

SOA

149ms

MTA-STS

280ms

DNSSEC

466ms

SRV

338ms

Total

3884ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 17:53:54	430ms	3 NS 1 A 3 MX	🔒 Secure
2026-09-29 23:24:31	515ms	3 NS 1 A 3 MX	🔒 Secure
2026-09-27 08:15:16	560ms	3 NS 1 A 3 MX	🔒 Secure
2026-09-21 06:45:28	535ms	3 NS 1 A 3 MX	🔒 Secure
2026-08-27 20:44:11	821ms	3 NS 1 A 3 MX	🔒 Secure
2026-08-27 00:49:22	607ms	3 NS 1 A 3 MX	🔒 Secure
2026-07-01 22:12:40	997ms	3 NS 1 A 3 MX	🔒 Secure
2026-06-22 07:47:48	951ms	3 NS 1 A 3 MX	🔒 Secure
2026-06-22 01:09:58	1177ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 08:09:40 shown	3884ms	3 NS 1 A 3 MX	⚠️ Bogus