brahetrolleborg-skole.dk

📜 Historical scan 2026-06-16 16:41:13 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

brahetrolleborg-skole.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 25 November 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.231 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 369ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	—	—	—
ns2.curanet.dk	—	—	—

🌍 A Records#

1 records 357ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.231	—	linux30.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

2 records 420ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx1.onlinemail.io	185.21.42.12	mx1.onlinemail.io	AS48854 team.blue Denmark A/S
20	—	mx2.onlinemail.io	46.36.208.16	mx2.onlinemail.io	AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 708ms

TXT Record
v=spf1 include:spf.onlinemail.io ?all

✉️ SPF#

Policy	Record (brahetrolleborg-skole.dk)
?all (neutral)	v=spf1 include:spf.onlinemail.io ?all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-23 19:48:17

www	185.21.41.231 (AS48854) (address records, no CNAME)
www vs bare domain	Same network brahetrolleborg-skole.dk: 185.21.41.231 (AS48854) www.brahetrolleborg-skole.dk: 185.21.41.231 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ?all

warn "?all" is neutral: it gives receivers no guidance, much like having no SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

628ms

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

🏷️ SOA#

394ms

Field	Value
Serial	2021111701
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-08 21:51:53

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2020-11-25
Expires	2026-11-30 (36d)

📋 WHOIS#

⏱️ Lookup Timing#

369ms

357ms

420ms

AAAA

402ms

TXT

708ms

CAA

397ms

HTTPS

360ms

TLSA

491ms

SOA

394ms

MTA-STS

422ms

DNSSEC

628ms

SRV

0ms

Total

2982ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-23 19:48:17	457ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-28 10:33:01	678ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-26 05:36:09	787ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-16 16:41:13 shown	2982ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-16 16:37:18	1719ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-16 16:30:41	547ms	2 NS 1 A 2 MX	🔒 Secure