redcorner.dk DNS records

🖥️ Nameservers2 records 261ms

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 Records2 records 221ms

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 Records2 records 197ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.emailsrvr.com	184.106.54.1	mx1.emailsrvr.com	AS19994 Rackspace Hosting
20	300s	mx2.emailsrvr.com	173.203.187.2	mx2.emailsrvr.com	AS27357 Rackspace Hosting

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	104.21.21.243
🔶 Autoconfig	104.21.21.243

🔷 AAAA Records (IPv6)2 records 205ms

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 Records1 records 229ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.21.243,172.67.201.112 ech=AEX+DQBBLAAgACDQvITey2Xc5a2pNV27963QnJAoAnsJv042o3sbkQTnIQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:15f3,2606:4700:3031::ac43:c970

📝 TXT Records1 records 532ms

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

🔗 TLSA / DANE

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

🔐 DNSSEC366ms

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

🏷️ SOA242ms

Field	Value
Serial	2406638857
Primary NS (MNAME)	luke.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

261ms

A

221ms

MX

197ms

AAAA

205ms

TXT

532ms

CAA

253ms

HTTPS

229ms

TLSA

340ms

SOA

242ms

MTA-STS

234ms

DNSSEC

366ms

SRV

286ms

Total

3230ms

🕐 Scan History

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