holst-christensen.dk DNS records

🖥️ Nameservers4 records 100ms

Nameserver	IP addresses	PTR	ASN / ISP
arthur.cutisan.dk	2001:470:28:2f7:0:1:0:6 80.198.171.106	arthur.cutisan.dk arthur.cutisan.dk	AS6939 Hurricane Electric LLC AS3292 TDC Holding A/S
bes.cutisan.dk	2001:470:28:2f7:0:1:0:2 80.198.171.102	bes.cutisan.dk bes.cutisan.com	AS6939 Hurricane Electric LLC AS3292 TDC Holding A/S
merlin.cutisan.dk	2001:470:28:2f7:0:1:0:1 80.198.171.101	merlin.cutisan.dk merlin.cutisan.dk	AS6939 Hurricane Electric LLC AS3292 TDC Holding A/S
thoth.cutisan.net	2001:470:28:404:0:6:0:2 90.185.206.63	thoth.cutisan.net thoth.cutisan.net	AS6939 Hurricane Electric LLC AS203953 Hiper A/S

🌍 A Records

🌍

No A records found

📧 MX Records2 records 97ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	86400s	merlin.cutisan.dk	2001:470:28:2f7:0:1:0:1 80.198.171.101 80.198.171.101	merlin.cutisan.dk 101.97-111.171.198.80.in-addr.arpa merlin.cutisan.dk	AS6939 Hurricane Electric LLC AS3292 TDC Holding A/S AS3292 TDC Holding A/S
10	86400s	thoth.cutisan.net	2001:470:28:404:0:6:0:2 90.185.206.63	thoth.cutisan.net thoth.cutisan.net	AS6939 Hurricane Electric LLC AS203953 Hiper A/S

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 559ms

TXT Record
v=spf1 include:_spf.myemail.dk -all

✉️ SPF

Policy	Record (holst-christensen.dk)
-all (hard fail)	v=spf1 include:_spf.myemail.dk -all

📨 DMARC

Policy	Record (_dmarc.holst-christensen.dk)
p=reject	v=DMARC1; p=reject; sp=reject; pct=100; fo=1; ri=86400; rua=mailto:postmaster-dma@holst-christensen.dk; ruf=mailto:postmaster-daf@holst-christensen.dk

📬 MTA-STS465ms

Check	Result
Status	🧪 Testing
TXT record (_mta-sts)	✓ Found
HTTPS policy	✓ Valid
Mode	testing
Policy ID	202505200001
max_age	86400s
Policy MX	merlin.cutisan.dk, thoth.cutisan.net

📈 TLSRPT

Status	Report address (rua)
✓ Enabled	mailto:postmaster-tls@myemail.dk

📜 CAA Records2 records 90ms

Flags	Tag	Value
0	iodef	mailto:postmaster@holst-christensen.dk
0	issue	letsencrypt.org

🔗 TLSA / DANE8 records 136ms

Service / Owner	Type	Cert association
SMTP _25._tcp.merlin.cutisan.dk	DANE-TA · SPKI · SHA-512	8B0A0CBBE72552E12AB3C82CF13F4793…
SMTP _25._tcp.merlin.cutisan.dk	DANE-TA · SPKI · SHA-256	B3FB5D00E994CDDF2CC9A4EEA9F806BC…
SMTP _25._tcp.merlin.cutisan.dk	DANE-TA · SPKI · SHA-256	6EBCEFB4210B088654A38B03FEA3D7D1…
SMTP _25._tcp.merlin.cutisan.dk	DANE-TA · SPKI · SHA-512	115F68647DC892788AD8BE021FDEA758…
SMTP _25._tcp.thoth.cutisan.net	DANE-TA · SPKI · SHA-256	2E8307068B6DB620E4A39D068B5DEE5D…
SMTP _25._tcp.thoth.cutisan.net	DANE-TA · SPKI · SHA-512	B71DB2EF3A7AEC54F4651711B72821EC…
SMTP _25._tcp.thoth.cutisan.net	DANE-TA · SPKI · SHA-512	A90D0606D641B94AFF27371F57E0BE27…
SMTP _25._tcp.thoth.cutisan.net	DANE-TA · SPKI · SHA-256	9D637B3D27A9E570D07607B9CCADB80A…

🔐 DNSSEC308ms

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

🏷️ SOA0ms

Field	Value
Serial	2025070823
Primary NS (MNAME)	arthur.cutisan.dk
Responsible (RNAME)	postmaster@myemail.dk
Refresh	21600s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

100ms

A

128ms

MX

97ms

AAAA

95ms

TXT

559ms

CAA

90ms

HTTPS

99ms

TLSA

136ms

SOA

0ms

MTA-STS

465ms

DNSSEC

308ms

SRV

351ms

Total

1775ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 20:53:41	1775ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-08-30 11:15:23	1480ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-08-28 03:55:33	1673ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-08-26 20:53:13	4482ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-08-25 00:07:12	3672ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-08-23 23:43:24	3991ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-08-21 22:49:51	3206ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-08-20 22:30:21	17602ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-08-18 20:55:12	9323ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-08-16 22:30:16	4733ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-08-15 19:24:05	12324ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-08-13 00:54:42	10134ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-08-12 00:29:12	3521ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-08-09 17:41:03	10038ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-08-06 19:14:45	1828ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-07-30 18:49:49	9947ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-07-27 23:49:18	12088ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-07-25 22:39:37	10347ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-07-24 22:20:53	5349ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-07-22 20:23:13	2529ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-07-21 01:33:32	5379ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-07-20 00:25:29	14345ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-07-18 19:16:14	11489ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-07-17 17:12:48	21144ms	4 NS 0 A 2 MX	🔒 Secure	View
2026-07-16 07:45:07	5256ms	4 NS 0 A 2 MX	🔒 Secure	View