redcorner.dk

📜 Historical scan 2026-08-16 05:08:41 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

redcorner.dk is a .dk domain served by 2 nameservers (luke.ns.cloudflare.com, naomi.ns.cloudflare.com). It was registered on 17 March 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.21.243 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.emailsrvr.com, mx2.emailsrvr.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 208ms

Nameserver	IP addresses	PTR	ASN / ISP
luke.ns.cloudflare.com	108.162.193.200 172.64.33.200 173.245.59.200 2606:4700:58::adf5:3bc8 2803:f800:50::6ca2:c1c8 2a06:98c1:50::ac40:21c8	luke.ns.cloudflare.com luke.ns.cloudflare.com luke.ns.cloudflare.com luke.ns.cloudflare.com luke.ns.cloudflare.com luke.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
naomi.ns.cloudflare.com	108.162.192.208 172.64.32.208 173.245.58.208 2606:4700:50::adf5:3ad0 2803:f800:50::6ca2:c0d0 2a06:98c1:50::ac40:20d0	naomi.ns.cloudflare.com naomi.ns.cloudflare.com naomi.ns.cloudflare.com naomi.ns.cloudflare.com naomi.ns.cloudflare.com naomi.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 205ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.21.243	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.201.112	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 246ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.emailsrvr.com	173.203.187.1	mx1.emailsrvr.com	AS27357 Rackspace Hosting
20	300s	mx2.emailsrvr.com	146.20.161.2	mx2.emailsrvr.com	AS27357 Rackspace Hosting

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.67.201.112
🔶 Autoconfig	172.67.201.112

🔷 AAAA Records (IPv6)#

2 records 204ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:15f3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::ac43:c970	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 257ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.21.243,172.67.201.112 ech=AEX+DQBB9gAgACC6kVhOC+xjEDoQ1vMbJc3XgeCJriRAar5NDsNVKErFNgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:15f3,2606:4700:3031::ac43:c970

📝 TXT Records#

1 records 735ms

TXT Record
v=spf1 include:emailsrvr.com ~all

✉️ SPF#

Policy	Record (redcorner.dk)
~all (soft fail)	v=spf1 include:emailsrvr.com ~all

📨 DMARC#

Policy	Record (_dmarc.redcorner.dk)
p=none (monitor only)	v=DMARC1; p=none; aspf=r; adkim=r;

📬 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 2026-10-17 17:47:44

www	104.21.21.243 172.67.201.112 2606:4700:3030::6815:15f3 2606:4700:3031::ac43:c970 (AS13335) (address records, no CNAME)
www vs bare domain	Same network redcorner.dk: 104.21.21.243 172.67.201.112 2606:4700:3030::6815:15f3 2606:4700:3031::ac43:c970 (AS13335) www.redcorner.dk: 104.21.21.243 172.67.201.112 2606:4700:3030::6815:15f3 2606:4700:3031::ac43:c970 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.redcorner.dk	oBKRK3qQhB1C2IXuw0LNRHEScQUy7jIkAfEQy3L0Tgo
TXT	_acme-challenge.redcorner.dk	qrRsfKXvNzyySx-M8quF3LI4KbZKlRtEZQFRW2MBC8c

🔗 TLSA / DANE#

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

🔐 DNSSEC#

407ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2412322638
Primary NS (MNAME)	luke.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-08 01:48:23

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2005-03-17
Expires	2028-03-31 (530d)

📋 WHOIS#

⏱️ Lookup Timing#

208ms

205ms

246ms

AAAA

204ms

TXT

735ms

CAA

239ms

HTTPS

257ms

TLSA

365ms

SOA

0ms

MTA-STS

303ms

DNSSEC

407ms

SRV

299ms

Total

5288ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 17:47:44	734ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-30 19:55:50	904ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-25 21:05:55	917ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-07 03:41:53	1282ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-26 23:58:38	7400ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-25 13:16:54	792ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-17 14:00:13	8605ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-16 05:08:41 shown	5288ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-10 08:16:41	923ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-24 19:26:25	3230ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-21 21:13:03	1068ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-21 14:37:20	1148ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 05:19:31	4153ms	2 NS 2 A 2 MX	🔓 Insecure