grænsesti-skole.dk DNS records

🖥️ Nameservers2 records 37ms

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 61ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.18.0.68	300s	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—
104.18.1.68	300s	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 34ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700::6812:144	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2606:4700::6812:44	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—

🔐 HTTPS Records1 records 29ms

Priority	Target	SvcParams
1 service	.	alpn="h2" ipv4hint=104.18.0.68,104.18.1.68 ipv6hint=2606:4700::6812:44,2606:4700::6812:144

📝 TXT Records1 records 142ms

TXT Record
v=spf1 -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.grænsesti-skole.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)

🔐 DNSSEC108ms

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

🏷️ SOA0ms

Field	Value
Serial	2413408698
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

37ms

A

61ms

MX

36ms

AAAA

34ms

TXT

142ms

CAA

32ms

HTTPS

29ms

TLSA

139ms

SOA

0ms

MTA-STS

42ms

DNSSEC

108ms

SRV

52ms

Total

591ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 14:57:16	591ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-08-25 22:58:42	2505ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-08-07 20:12:20	1007ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-07-18 20:53:31	975ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-07-14 09:33:58	891ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-07-04 18:34:27	859ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-06-24 17:46:35	3796ms	2 NS 2 A 0 MX	⚠️ Bogus	View
2026-06-22 05:21:49	1191ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 19:17:55	461ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-06-20 17:01:49	2529ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-06-17 09:47:04	2529ms	2 NS 2 A 0 MX	🔒 Secure	View