powerclass.dk

📜 Historical scan 2026-09-30 23:10:16 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

powerclass.dk is a .dk domain served by 2 nameservers (clay.ns.cloudflare.com, heather.ns.cloudflare.com). It was registered on 18 June 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.55.251 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.stackmail.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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#

2 records 30ms

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 Records#

2 records 30ms

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 Records#

1 records 42ms

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 42ms

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 Records#

1 records 43ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.55.251,172.67.174.211 ech=AEX+DQBBEgAgACCwaK7PCpaZAyTO+w4sUlgWGSG+/t/DPHwvrninBJj1FwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:aed3,2606:4700:3037::6815:37fb

📝 TXT Records#

1 records 184ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-08 02:04:53

www	104.21.55.251 172.67.174.211 2606:4700:3030::ac43:aed3 2606:4700:3037::6815:37fb (AS13335) (address records, no CNAME)
www vs bare domain	Same network powerclass.dk: 104.21.55.251 172.67.174.211 2606:4700:3030::ac43:aed3 2606:4700:3037::6815:37fb (AS13335) www.powerclass.dk: 104.21.55.251 172.67.174.211 2606:4700:3030::ac43:aed3 2606:4700:3037::6815:37fb (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

111ms

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

🏷️ SOA#

35ms

Field	Value
Serial	2416249203
Primary NS (MNAME)	clay.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-11 05:16:45

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2021-06-18
Expires	2027-06-30 (255d)

📋 WHOIS#

⏱️ Lookup Timing#

30ms

42ms

AAAA

42ms

TXT

184ms

CAA

31ms

HTTPS

43ms

TLSA

136ms

SOA

35ms

MTA-STS

51ms

DNSSEC

111ms

SRV

81ms

Total

842ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 02:04:53	4728ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 23:10:16 shown	842ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-29 23:06:53	978ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-28 22:51:10	906ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-25 21:40:34	637ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-25 07:16:40	849ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 07:13:59	1440ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-23 07:07:43	1295ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-19 10:05:12	1272ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-12 09:08:06	2803ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-10 17:24:09	2018ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-29 03:30:25	1120ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-25 15:33:06	687ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-09 21:25:30	1766ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-18 04:52:23	912ms	2 NS 2 A 1 MX	🔓 Insecure