tjæreborgskole.dk DNS records

🖥️ Nameservers2 records 43ms

Nameserver	IP addresses	PTR	ASN / ISP
brit.ns.cloudflare.com	108.162.192.78 172.64.32.78 173.245.58.78 2606:4700:50::adf5:3a4e 2803:f800:50::6ca2:c04e 2a06:98c1:50::ac40:204e	brit.ns.cloudflare.com brit.ns.cloudflare.com brit.ns.cloudflare.com brit.ns.cloudflare.com brit.ns.cloudflare.com brit.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
mack.ns.cloudflare.com	108.162.195.37 162.159.44.37 172.64.35.37 2606:4700:58::a29f:2c25 2803:f800:50::6ca2:c325 2a06:98c1:50::ac40:2325	mack.ns.cloudflare.com mack.ns.cloudflare.com mack.ns.cloudflare.com mack.ns.cloudflare.com mack.ns.cloudflare.com mack.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.63.98	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.145.33	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 39ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:9121	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:3f62	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 53ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.63.98,172.67.145.33 ech=AEX+DQBB7gAgACDjb97KP6YVmnJEmItPXJ+TBePeT87Vjd9IS+KnQbe6dAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:9121,2606:4700:3036::6815:3f62

📝 TXT Records1 records 251ms

TXT Record
v=spf1 -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.tjæreborgskole.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)

🔐 DNSSEC90ms

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

🏷️ SOA0ms

Field	Value
Serial	2413311287
Primary NS (MNAME)	brit.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

43ms

A

48ms

MX

57ms

AAAA

39ms

TXT

251ms

CAA

52ms

HTTPS

53ms

TLSA

57ms

SOA

0ms

MTA-STS

79ms

DNSSEC

90ms

SRV

74ms

Total

751ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 15:13:20	751ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-08-08 05:09:02	8878ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-07-18 23:33:42	929ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-07-16 20:56:28	9758ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-06-19 17:48:38	2550ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-06-19 17:32:53	622ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-06-17 12:12:21	654ms	2 NS 2 A 0 MX	🔒 Secure	View