osterbyskolen.dk

📜 Historical scan 2026-06-17 11:42:37 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

osterbyskolen.dk is a .dk domain served by 2 nameservers (ns.scannet2.dk, ns2.scannet2.dk). It was registered on 27 June 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 81.95.242.90 is hosted by team.blue Denmark A/S (AS48854) in Denmark. The zone is DNSSEC-signed and validates, publishes a 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 88ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.scannet2.dk	185.25.141.9 2a02:2339:4006:10d::4171:4171	ns1.scannet.dk ns1.scannet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.scannet2.dk	2a02:2339:1:112:0:5:1:b11 91.197.248.72	ns2.scannet.dk ns2.scannet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 73ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
81.95.242.90	—	dcms-d554.aar0.dk.hostnordic.com	AS48854	team.blue Denmark A/S	81.95.240.0/20	🇩🇰 Denmark	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 232ms

TXT Record
v=spf1 -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.osterbyskolen.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:5f3288532a643@dmarc.centerasecurity.com;

📬 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 2026-09-30 18:07:19

www	Address record (no CNAME)
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: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

264ms

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

🏷️ SOA#

71ms

Field	Value
Serial	2023120101
Primary NS (MNAME)	ns.scannet2.dk
Responsible (RNAME)	hostmaster@scannet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-15 04:15:55

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2005-06-27
Expires	2027-06-30 (256d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
østerbyskolen.dk	A/S SCANNET

📋 WHOIS#

⏱️ Lookup Timing#

88ms

73ms

84ms

AAAA

90ms

TXT

232ms

CAA

85ms

HTTPS

104ms

TLSA

77ms

SOA

71ms

MTA-STS

87ms

DNSSEC

264ms

SRV

0ms

Total

729ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-23 16:07:26	440ms	2 NS 1 A 0 MX	🔒 Secure
2026-08-25 23:29:08	469ms	2 NS 1 A 0 MX	🔒 Secure
2026-08-24 21:46:33	467ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-29 07:35:06	570ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-22 23:49:38	648ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-21 21:26:50	1108ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 11:42:37 shown	729ms	2 NS 1 A 0 MX	🔒 Secure