ntreffeld.dk

📜 Historical scan 2026-06-23 11:08:24 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ntreffeld.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 9 March 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.200.90.180 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by mail.ntreffeld.dk, mx4.spamfri.dk and 3 more. 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 386ms

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 285ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.200.90.180	300s	web8.e-studio.dk	AS62121	Christian Ebsen ApS	193.200.90.0/23	🇩🇰 Denmark	—

📧 MX Records#

5 records 251ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail.ntreffeld.dk	193.200.90.180	web8.e-studio.dk	AS62121 Christian Ebsen ApS
10	300s	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	300s	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	300s	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
40	300s	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

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	193.200.90.180
🔶 Autoconfig	193.200.90.180

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 435ms

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

📝 TXT Records#

1 records 901ms

TXT Record
v=spf1 +a +mx +ip4:193.200.90.180 include:_spf.e-studio.dk ~all

✉️ SPF#

Policy	Record (ntreffeld.dk)
~all (soft fail)	v=spf1 +a +mx +ip4:193.200.90.180 include:_spf.e-studio.dk ~all

📨 DMARC#

Policy	Record (_dmarc.ntreffeld.dk)
p=reject	v=DMARC1;p=reject; sp=none; adkim=s; aspf=s

📬 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 2026-10-26 04:42:37

www	178.20.217.4 (AS21060) (address records, no CNAME)
www vs bare domain	Same network ntreffeld.dk: 178.20.217.4 (AS21060) www.ntreffeld.dk: 178.20.217.4 (AS21060)
Wildcard	No
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: 3/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.ntreffeld.dk	qYORt-pjbtBFplYiqBYcfw1WSGkEnDeJ_-KxjT3TvwQ

🔗 TLSA / DANE#

4 records 170ms

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…
SMTP _25._tcp.mx4.spamfri.dk	DANE-EE · SPKI · SHA-256	4EE743A99328AEF5142706CA5FD3AD61…

🔐 DNSSEC#

588ms

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

🏷️ SOA#

251ms

Field	Value
Serial	2026052301
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 2026-10-01 02:38:15

Field	Value
Registrar	FIONIA IT ApS
Registered	2006-03-09
Expires	2027-03-31 (155d)

📋 WHOIS#

⏱️ Lookup Timing#

386ms

285ms

251ms

AAAA

383ms

TXT

901ms

CAA

342ms

HTTPS

261ms

TLSA

170ms

SOA

251ms

MTA-STS

253ms

DNSSEC

588ms

SRV

435ms

Total

2264ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-26 04:42:37	654ms	4 NS 1 A 1 MX	🔓 Insecure
2026-10-03 07:17:13	525ms	4 NS 1 A 1 MX	🔓 Insecure
2026-10-01 02:14:09	1997ms	4 NS 1 A 1 MX	🔓 Insecure
2026-09-24 00:04:48	855ms	3 NS 1 A 5 MX	🔓 Insecure
2026-08-26 18:54:26	1199ms	3 NS 1 A 5 MX	🔓 Insecure
2026-08-25 11:23:51	648ms	3 NS 1 A 5 MX	🔓 Insecure
2026-07-24 11:33:27	9740ms	3 NS 1 A 5 MX	❓ Unknown
2026-06-23 11:08:24 shown	2264ms	3 NS 1 A 5 MX	🔓 Insecure
2026-06-22 16:08:39	1121ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-22 04:55:27	938ms	3 NS 1 A 5 MX	🔓 Insecure
2026-06-18 01:15:54	1234ms	3 NS 1 A 5 MX	🔓 Insecure