redderskole.dk DNS records

🖥️ Nameservers2 records 187ms

Nameserver	IP addresses	PTR	ASN / ISP
kallie.ns.cloudflare.com	108.162.194.85 162.159.38.85 172.64.34.85 2606:4700:50::a29f:2655 2803:f800:50::6ca2:c255 2a06:98c1:50::ac40:2255	kallie.ns.cloudflare.com kallie.ns.cloudflare.com kallie.ns.cloudflare.com kallie.ns.cloudflare.com kallie.ns.cloudflare.com kallie.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ryan.ns.cloudflare.com	108.162.195.229 162.159.44.229 172.64.35.229 2606:4700:58::a29f:2ce5 2803:f800:50::6ca2:c3e5 2a06:98c1:50::ac40:23e5	ryan.ns.cloudflare.com ryan.ns.cloudflare.com ryan.ns.cloudflare.com ryan.ns.cloudflare.com ryan.ns.cloudflare.com ryan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 197ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.26.106	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.135.223	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 199ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:1a6a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:87df	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 245ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.26.106,172.67.135.223 ech=AEX+DQBB7QAgACCtn7wBSYETMvQeKSKuhY1k0Mo9x6K1D94JlBVzUecvLAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:1a6a,2606:4700:3033::ac43:87df

📝 TXT Records1 records 746ms

TXT Record
v=spf1 -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.redderskole.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

📬 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)

🔐 DNSSEC392ms

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

🏷️ SOA0ms

Field	Value
Serial	2412423642
Primary NS (MNAME)	kallie.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

187ms

A

197ms

MX

222ms

AAAA

199ms

TXT

746ms

CAA

261ms

HTTPS

245ms

TLSA

441ms

SOA

0ms

MTA-STS

328ms

DNSSEC

392ms

SRV

321ms

Total

3846ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-17 17:37:53	3846ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-08-13 20:32:19	9732ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-07-22 11:20:55	2439ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-07-20 22:56:58	1431ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-06-30 15:05:12	798ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-06-22 11:10:07	891ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-06-22 08:08:01	916ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 08:02:49	998ms	2 NS 2 A 0 MX	🔒 Secure	View