on-skole.dk DNS records

🖥️ Nameservers2 records 61ms

Nameserver	IP addresses	PTR	ASN / ISP
betty.ns.cloudflare.com	108.162.192.75 172.64.32.75 173.245.58.75 2606:4700:50::adf5:3a4b 2803:f800:50::6ca2:c04b 2a06:98c1:50::ac40:204b	betty.ns.cloudflare.com betty.ns.cloudflare.com betty.ns.cloudflare.com betty.ns.cloudflare.com betty.ns.cloudflare.com betty.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
simon.ns.cloudflare.com	108.162.193.232 172.64.33.232 173.245.59.232 2606:4700:58::adf5:3be8 2803:f800:50::6ca2:c1e8 2a06:98c1:50::ac40:21e8	simon.ns.cloudflare.com simon.ns.cloudflare.com simon.ns.cloudflare.com simon.ns.cloudflare.com simon.ns.cloudflare.com simon.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 61ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.96.136	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.181.161	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 73ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:6088	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:b5a1	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 38ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.96.136,172.67.181.161 ech=AEX+DQBBVAAgACAHSHUICxC8t/iQHx3wsFiEKQ08JFPD9rFsEmJ6bo5FEQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:6088,2606:4700:3035::ac43:b5a1

📝 TXT Records3 records 336ms

TXT Record
bw=pHMZ0o9K26XEqh8wCkEIQP53zkxdqb4gDGRALEcMstUI
have-i-been-pwned-verification=dweb_sde750ds96ttiuz9nxzmqg8x
v=spf1 -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.on-skole.dk)
p=reject	v=DMARC1; p=reject; sp=reject; rua=mailto:dmarcreports-rua@redbarnet.dk; ruf=mailto:dmarcreports-ruf@redbarnet.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

🔗 TLSA / DANE

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

🔐 DNSSEC107ms

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

🏷️ SOA0ms

Field	Value
Serial	2412820262
Primary NS (MNAME)	betty.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

61ms

A

61ms

MX

55ms

AAAA

73ms

TXT

336ms

CAA

54ms

HTTPS

38ms

TLSA

96ms

SOA

0ms

MTA-STS

89ms

DNSSEC

107ms

SRV

90ms

Total

942ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 14:38:00	942ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-08-22 16:54:36	1027ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-08-08 03:37:30	1055ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-08-06 13:49:00	1003ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-07-14 20:29:57	1025ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-06-27 09:35:08	863ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-06-25 12:22:18	2128ms	2 NS 4 A 0 MX	🔒 Secure	View
2026-06-18 01:28:46	1319ms	2 NS 4 A 0 MX	🔒 Secure	View