holtz.dk

📜 Historical scan 2026-06-19 19:27:56 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

holtz.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 4 February 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx4.spamfri.dk, mx2.spamfri.dk and 2 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 154ms

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 150ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.242.130.70	14400s	web7.e-studio.dk	AS62121	—	—	—	—

📧 MX Records#

4 records 155ms

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 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	3600s	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	195.242.130.70
🔶 Autoconfig	195.242.130.70

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 139ms

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

📝 TXT Records#

1 records 280ms

TXT Record
v=spf1 +a +mx +ip4:195.242.130.70 include:_spf.e-studio.dk ~all

✉️ SPF#

Policy	Record (holtz.dk)
~all (soft fail)	v=spf1 +a +mx +ip4:195.242.130.70 include:_spf.e-studio.dk ~all

📨 DMARC#

Policy	Record (_dmarc.holtz.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 2026-10-17 13:33:51

www CNAME	holtz.dk (all on holtz.dk) → 195.242.130.70 (AS62121)
www vs bare domain	Same network holtz.dk: 195.242.130.70 (AS62121) www.holtz.dk: 195.242.130.70 (AS62121)
Wildcard	No

✍️ 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.holtz.dk	6qxqvCIEHkyFhhSQ0--RO8pMyvxyYr_ShpslmTuoOzs

🔗 TLSA / DANE#

4 records 123ms

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#

180ms

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

🏷️ SOA#

151ms

Field	Value
Serial	2026053101
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 2026-10-17 00:43:13

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2000-02-04
Expires	2027-03-31 (164d)

🔗 Same registrant#

0 domains

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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

154ms

150ms

155ms

AAAA

124ms

TXT

280ms

CAA

142ms

HTTPS

124ms

TLSA

123ms

SOA

151ms

MTA-STS

136ms

DNSSEC

180ms

SRV

139ms

Total

4093ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 00:52:28	876ms	3 NS 1 A 4 MX	🔓 Insecure
2026-09-02 21:21:56	737ms	3 NS 1 A 4 MX	🔓 Insecure
2026-08-27 02:30:40	980ms	3 NS 1 A 4 MX	🔓 Insecure
2026-08-06 16:34:43	1582ms	3 NS 1 A 4 MX	🔓 Insecure
2026-06-25 19:17:30	939ms	3 NS 1 A 4 MX	🔓 Insecure
2026-06-19 19:27:56 shown	4093ms	3 NS 1 A 4 MX	🔓 Insecure
2026-06-17 14:21:04	278ms	0 NS 0 A 0 MX	❓ Unknown