semdns.dk DNS records

🖥️ Nameservers2 records 44ms

Nameserver	IP addresses	PTR	ASN / ISP
josh.ns.cloudflare.com	108.162.193.126 172.64.33.126 173.245.59.126 2606:4700:58::adf5:3b7e 2803:f800:50::6ca2:c17e 2a06:98c1:50::ac40:217e	josh.ns.cloudflare.com josh.ns.cloudflare.com josh.ns.cloudflare.com josh.ns.cloudflare.com josh.ns.cloudflare.com josh.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ruth.ns.cloudflare.com	108.162.192.143 172.64.32.143 173.245.58.143 2606:4700:50::adf5:3a8f 2803:f800:50::6ca2:c08f 2a06:98c1:50::ac40:208f	ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records1 records 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
83.151.155.18	300s	—	AS31027	GlobalConnect A/S	83.151.128.0/18	🇩🇰 Denmark	—

📧 MX Records2 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.semark.dk	83.151.155.18	—	AS31027 GlobalConnect A/S
20	300s	mail.backup.semark.dk	83.151.155.18	—	AS31027 GlobalConnect A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	semdns.dk → 83.151.155.18
🔶 Autoconfig	semdns.dk → 83.151.155.18

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 258ms

TXT Record
v=spf1 -all

✉️ SPF

Policy	Record (semdns.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC

Policy	Record (_dmarc.semdns.dk)
p=reject	v=DMARC1; p=reject; sp=reject; aspf=r; adkim=r; fo=1; pct=100; rua=mailto:semark-d@dmarc.report-uri.com; ruf=mailto:semark-d@dmarc.report-uri.com;

📬 MTA-STS

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records12 records 54ms

Flags	Tag	Value
0	iodef	mailto:info@semarkit.net
0	issue	comodoca.com
0	issue	digicert.com; cansignhttpexchanges=yes
0	issue	letsencrypt.org
0	issue	pki.goog; cansignhttpexchanges=yes
0	issue	ssl.com
0	issuewild	;
0	issuewild	comodoca.com
0	issuewild	digicert.com; cansignhttpexchanges=yes
0	issuewild	letsencrypt.org
0	issuewild	pki.goog; cansignhttpexchanges=yes
0	issuewild	ssl.com

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.semdns.dk	semdns.dk

🔗 TLSA / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC114ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2412265067
Primary NS (MNAME)	josh.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

44ms

A

46ms

MX

36ms

AAAA

47ms

TXT

258ms

CAA

54ms

HTTPS

37ms

TLSA

101ms

SOA

0ms

MTA-STS

62ms

DNSSEC

114ms

SRV

65ms

Total

953ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 19:33:51	953ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-16 18:06:12	1517ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-14 20:10:44	3799ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-07 09:26:51	2096ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-25 04:33:40	2030ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-22 19:24:19	1427ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-30 20:26:23	2551ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-24 23:04:20	1214ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-19 21:54:12	3513ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-17 12:56:27	5755ms	2 NS 1 A 2 MX	🔒 Secure	View