holtze.dk DNS records

🖥️ Nameservers2 records 37ms

Nameserver	IP addresses	PTR	ASN / ISP
gail.ns.cloudflare.com	108.162.192.116 172.64.32.116 173.245.58.116 2606:4700:50::adf5:3a74 2803:f800:50::6ca2:c074 2a06:98c1:50::ac40:2074	gail.ns.cloudflare.com gail.ns.cloudflare.com gail.ns.cloudflare.com gail.ns.cloudflare.com gail.ns.cloudflare.com gail.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
major.ns.cloudflare.com	108.162.193.241 172.64.33.241 173.245.59.241 2606:4700:58::adf5:3bf1 2803:f800:50::6ca2:c1f1 2a06:98c1:50::ac40:21f1	major.ns.cloudflare.com major.ns.cloudflare.com major.ns.cloudflare.com major.ns.cloudflare.com major.ns.cloudflare.com major.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records

🌍

No A records found

📧 MX Records1 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	mail.clobix.com	5.186.44.132	mail.clobix.com	AS44869 FIBIA P/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	mail.clobix.com → 5.186.44.132
🔶 Autoconfig	mail.clobix.com → 5.186.44.132

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 101ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	1	443	mail.clobix.com

📝 TXT Records2 records 161ms

TXT Record
google-site-verification=PPuXwIyE066MtvTHnGltOBoHQ_SsHpmwI5JsoHMbLuw
v=spf1 a:mail.clobix.com -all

✉️ SPF

Policy	Record (holtze.dk)
-all (hard fail)	v=spf1 a:mail.clobix.com -all

📨 DMARC

Policy	Record (_dmarc.holtze.dk)
p=reject	v=DMARC1; p=reject; adkim=s; aspf=s; rua=mailto:dmarc@holtze.dk

📬 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

🔗 TLSA / DANE1 records 58ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.clobix.com	DANE-EE · SPKI · SHA-256	FE2D30076888ED3FF28B2FE874ACA4F9…

🔐 DNSSEC74ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA53ms

Field	Value
Serial	2405932629
Primary NS (MNAME)	gail.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

37ms

A

37ms

MX

51ms

AAAA

34ms

TXT

161ms

CAA

65ms

HTTPS

49ms

TLSA

58ms

SOA

53ms

MTA-STS

39ms

DNSSEC

74ms

SRV

101ms

Total

782ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 08:58:42	9505ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-14 18:11:43	7539ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-09 12:56:37	1450ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-27 01:39:08	10408ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-21 23:29:05	17426ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-02 16:10:29	1166ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-27 11:18:06	723ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-26 21:42:43	1512ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-26 11:17:03	1125ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-22 23:20:45	782ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-21 21:34:44	465ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-17 11:38:19	1010ms	2 NS 0 A 1 MX	🔒 Secure	View