holbaek-realskolen.dk

Records from scan: 2026-10-04 01:39:58 · 1020ms total · last checked 2026-10-25 13:30 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

holbaek-realskolen.dk is a .dk domain served by 3 nameservers (mimer.deic.dk, ns-soa.darenet.dk, orion.i2.dk). It was registered on 30 June 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.48.131.26 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mx10.skolekom.dk, mx20.skolekom.dk and 2 more. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 46ms

Nameserver	IP addresses	PTR	ASN / ISP
mimer.deic.dk	2001:87f:ff27:65::66 95.128.27.66	mimer.deic.dk mimer.deic.dk	AS198455 Danmarks Tekniske Universitet AS198455 Danmarks Tekniske Universitet
ns-soa.darenet.dk	130.226.179.50 2001:878:0:e000:82:e2:b3:32	ns-soa.darenet.dk ns-soa.darenet.dk	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education
orion.i2.dk	78.153.182.90	orion.i2.dk	AS31027 GlobalConnect A/S

🌍 A Records#

1 records 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
87.48.131.26	86400s	—	AS3292	TDC Holding A/S	87.48.0.0/13	🇩🇰 Denmark	Copenhagen

📧 MX Records#

4 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	86400s	mx10.skolekom.dk	—	—	—
20	86400s	mx20.skolekom.dk	—	—	—
30	86400s	mx30.skolekom.dk	—	—	—
40	86400s	mx40.skolekom.dk	—	—	—

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 661ms

TXT Record
SOA=1701359301

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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#

checked 2026-10-11 07:38:20

www	80.210.91.69 (address records, no CNAME)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

66ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

42ms

Field	Value
Serial	1701359301
Primary NS (MNAME)	mimer.deic.dk
Responsible (RNAME)	dns@support.i2.dk
Refresh	16384s
Retry	2048s
Expire	2097152s
Minimum (neg-cache TTL)	2560s

📋 Registration#

WHOIS fetched 2026-10-23 06:29:25

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2010-06-30
Expires	2027-06-30 (246d)

🔗 Same registrant#

2 domains

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
holbaekrealskole.dk	Simply.com A/S
realskolen.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

46ms

37ms

41ms

AAAA

41ms

TXT

661ms

CAA

42ms

HTTPS

42ms

TLSA

151ms

SOA

42ms

MTA-STS

57ms

DNSSEC

66ms

SRV

429ms

Total

1020ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 01:39:58 shown	1020ms	3 NS 1 A 4 MX	🔓 Insecure
2026-07-02 16:35:24	1093ms	3 NS 1 A 4 MX	🔓 Insecure
2026-06-22 05:00:18	1393ms	3 NS 1 A 4 MX	🔓 Insecure
2026-06-22 02:05:57	978ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 03:28:26	1349ms	3 NS 1 A 4 MX	🔓 Insecure
2026-06-18 23:30:04	1901ms	3 NS 1 A 4 MX	🔓 Insecure
2026-06-17 13:11:03	268ms	0 NS 0 A 0 MX	❓ Unknown