helsingegymnasium.dk

Records from scan: 2026-10-25 23:53:25 · 1802ms total

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

helsingegymnasium.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 20 April 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.47.247.18 is hosted by One.com A/S (AS51468). Mail is handled by .. The zone is DNSSEC-signed and validates, publishes a 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#

2 records 611ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 623ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.47.247.18	3600s	one.com.webforward.g1i.one	AS51468	One.com A/S	195.47.247.0/24	—	—

📧 MX Records#

1 records 672ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	. Null MX — domain accepts no email (RFC 7505)

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	195.47.247.18
🔶 Autoconfig	195.47.247.18

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 1007ms

TXT Record
v=spf1 -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.helsingegymnasium.dk)
p=reject	v=DMARC1; p=reject; aspf=s; adkim=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

🧩 Web & zone#

checked 2026-10-25 23:53:25

www	195.47.247.18 (AS51468) (address records, no CNAME)
www vs bare domain	Same network helsingegymnasium.dk: 195.47.247.18 (AS51468) www.helsingegymnasium.dk: 195.47.247.18 (AS51468)
Wildcard	Yes: any name under the zone resolves
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#

830ms

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

🏷️ SOA#

106ms

Field	Value
Serial	2026102501
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-23 04:48:56

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2005-04-20
Expires	2027-04-30 (186d)

🔗 Same registrant#

4 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
grgy.dk	Punktum dk A/S (direct)
gribskov-gym.dk	Punktum dk A/S (direct)
gribskovgymnasium.dk	Punktum dk A/S (direct)
nordatlantiskgymnasieklasse.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

611ms

623ms

672ms

AAAA

613ms

TXT

1007ms

CAA

633ms

HTTPS

651ms

TLSA

125ms

SOA

106ms

MTA-STS

781ms

DNSSEC

830ms

SRV

828ms

Total

1802ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-25 23:53:25 shown	1802ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-24 15:49:01	569ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-23 04:31:35	389ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-22 05:31:13	777ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-27 23:03:08	845ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-22 03:51:31	593ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-17 11:08:58	811ms	2 NS 1 A 4 MX	🔒 Secure