gribskovgymnasium.dk

Records from scan: 2026-10-25 05:02:04 · 1866ms total

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gribskovgymnasium.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 7 October 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.247.67.245 is hosted by Rackhosting.com ApS (AS31590) in Denmark. Mail is handled by gribskovgymnasium-dk.mail.protection.outlook.com. 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 120ms

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 114ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
77.247.67.245	600s	—	AS31590	Rackhosting.com ApS	77.247.64.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 71ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	3600s	gribskovgymnasium-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca04::c 2a01:111:f403:ca09::26 2a01:111:f403:ca48::12 52.101.103.162 52.101.68.29 52.101.73.123 52.101.73.153	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-miypr03cu00202.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.149.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 179ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	100	443	mail.itcfyn.dk
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

7 records 345ms

TXT Record
9td7g52u1lm5usqinfpkc987km
btX2bwMKqFjtZKBjBzXS+q6rZoNoFQl0+m2PvNe/+jMVE0ulvZ6ogFcdMAjtuZkd4P7RCmVUCrdhEnqf0eHqlQ==
f1nfov7oaf7r8u51an9oodtpg8
google-site-verification=5ZGbk9fW7JKzaOnNcuAtLMYvbK4ZsQ6Tx_mynsDYfsQ
inst=IT-Center Fyn
iqgnsl2mu0j8r9mm1k1nl6t42v
v=spf1 a:itcpostfix02out.itcfyn.dk a:mail.ithozting.dk include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (gribskovgymnasium.dk)
-all (hard fail)	v=spf1 a:itcpostfix02out.itcfyn.dk a:mail.ithozting.dk include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.gribskovgymnasium.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email,mailto:dmarc@itcfyn.dk;

📬 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 05:02:04

www	77.247.67.245 (AS31590) (address records, no CNAME)
www vs bare domain	Same network gribskovgymnasium.dk: 77.247.67.245 (AS31590) www.gribskovgymnasium.dk: 77.247.67.245 (AS31590)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector2	selector2-gribskovgymnasium-dk._domainkey.o365itcfyn.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

249ms

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

🏷️ SOA#

69ms

Field	Value
Serial	2026102401
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 2026-10-25 05:26:16

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2006-10-07
Expires	2027-10-31 (370d)

🔗 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)
helsingegymnasium.dk	Punktum dk A/S (direct)
nordatlantiskgymnasieklasse.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

120ms

114ms

71ms

AAAA

68ms

TXT

345ms

CAA

88ms

HTTPS

88ms

TLSA

465ms

SOA

69ms

MTA-STS

138ms

DNSSEC

249ms

SRV

179ms

Total

1866ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-25 05:02:04 shown	1866ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-19 07:05:04	1314ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 21:41:18	747ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 02:36:34	879ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-28 15:31:51	7960ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:48:41	1607ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:41:46	3013ms	2 NS 1 A 1 MX	🔒 Secure