powerclass.dk DNS records

🖥️ Nameservers2 records 84ms

Nameserver	IP addresses	PTR	ASN / ISP
clay.ns.cloudflare.com	108.162.193.88 172.64.33.88 173.245.59.88 2606:4700:58::adf5:3b58 2803:f800:50::6ca2:c158 2a06:98c1:50::ac40:2158	clay.ns.cloudflare.com clay.ns.cloudflare.com clay.ns.cloudflare.com clay.ns.cloudflare.com clay.ns.cloudflare.com clay.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
heather.ns.cloudflare.com	108.162.192.161 172.64.32.161 173.245.58.161 2606:4700:50::adf5:3aa1 2803:f800:50::6ca2:c0a1 2a06:98c1:50::ac40:20a1	heather.ns.cloudflare.com heather.ns.cloudflare.com heather.ns.cloudflare.com heather.ns.cloudflare.com heather.ns.cloudflare.com heather.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 72ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.55.251	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.174.211	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 88ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx.stackmail.com	185.151.28.67	mx.stackmail.com	AS48254 20i Limited

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.stackmail.com → 45.8.227.100
🔶 Autoconfig	5.22.208.19

🔷 AAAA Records (IPv6)2 records 67ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:aed3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:37fb	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 90ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.55.251,172.67.174.211 ech=AEX+DQBBNwAgACBuUCQQjXcLlxHchwTrbzuY+a28cR55jd8ZlQCcli5KcQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:aed3,2606:4700:3037::6815:37fb

📝 TXT Records1 records 306ms

TXT Record
v=spf1 include:_spf.mlsend.com v=spf1 include:spf.stackmail.com a mx -all

✉️ SPF

Policy	Record (powerclass.dk)
-all (hard fail)	v=spf1 include:_spf.mlsend.com v=spf1 include:spf.stackmail.com a mx -all

📨 DMARC

Policy	Record (_dmarc.powerclass.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:dmarc@powerclass.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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.powerclass.dk	aDU_US7KqSL_6BOLKuwZz3FWju1DHnS2-fxtgUjaddw
TXT	_acme-challenge.powerclass.dk	fapyignEsPQbgu8h_EGfCjhc9mBlmcYn0FpDSxrP-zs
TXT	_acme-challenge.powerclass.dk	myv09YZcTJjIAAisRpIMvGSNqGTm5Q3t46M3rTv-lSY
TXT	_acme-challenge.powerclass.dk	Vqx3TUHxMdcceSZzyGP9oQWX1XxyF5p1uBMpNaKgbME

🔗 TLSA / DANE

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

🔐 DNSSEC201ms

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

🏷️ SOA0ms

Field	Value
Serial	2413396004
Primary NS (MNAME)	clay.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

84ms

A

72ms

MX

88ms

AAAA

67ms

TXT

306ms

CAA

92ms

HTTPS

90ms

TLSA

140ms

SOA

0ms

MTA-STS

110ms

DNSSEC

201ms

SRV

157ms

Total

1120ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 03:30:25	1120ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-25 15:33:06	687ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-09 21:25:30	1766ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-18 04:52:23	912ms	2 NS 2 A 1 MX	🔓 Insecure	View