gribskovgymnasium.dk DNS records

🖥️ Nameservers2 records 241ms

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 Records1 records 637ms

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 Records1 records 244ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	3600s	gribskovgymnasium-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca09:: 2a01:111:f403:ca09::5 2a01:111:f403:ca09::c 52.101.68.18 52.101.68.21 52.101.73.1 52.101.73.12	mail-dbapr03cu00100.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am4pr0401cu00104.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 → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records2 records 2345ms

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

📝 TXT Records7 records 4450ms

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

🔗 TLSA / DANE

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

🔐 DNSSEC2306ms

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

🏷️ SOA232ms

Field	Value
Serial	2026041401
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

241ms

A

637ms

MX

244ms

AAAA

594ms

TXT

4450ms

CAA

616ms

HTTPS

604ms

TLSA

2093ms

SOA

232ms

MTA-STS

277ms

DNSSEC

2306ms

SRV

2345ms

Total

7960ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-28 15:31:51	7960ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 10:48:41	1607ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 10:41:46	3013ms	2 NS 1 A 1 MX	🔒 Secure	View