holteninstitute.dk DNS records

🖥️ Nameservers3 records 478ms

Nameserver	IP addresses	PTR	ASN / ISP
dns1.oderland.com	2a02:28f0::41 91.201.61.4	dns1.oderland.com dns1.oderland.com	AS44136 ODERLAND Webbhotell AB AS44136 ODERLAND Webbhotell AB
dns2.oderland.com	2a02:28f0::46:1 46.16.239.247	dns2.oderland.com dns2.oderland.com	AS44136 ODERLAND Webbhotell AB AS44136 ODERLAND Webbhotell AB
dns3.oderland.com	2a00:1a28:1108:b::4:1 46.246.43.220	dns3.oderland.com dns3.oderland.com	AS42708 Glesys AB AS42708 Glesys AB

🌍 A Records1 records 482ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
91.201.60.85	7200s	premium20.oderland.com	AS44136	ODERLAND Webbhotell AB	91.201.60.0/22	🇸🇪 Sweden	—

📧 MX Records4 records 338ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	7200s	mx1.oderland.com	2a02:28f0::8:1 91.201.60.244	mx1.oderland.com mx1.oderland.com	AS44136 ODERLAND Webbhotell AB AS44136 ODERLAND Webbhotell AB
1	7200s	mx2.oderland.com	2a02:28f0::9:1 91.201.61.244	mx2.oderland.com mx2.oderland.com	AS44136 ODERLAND Webbhotell AB AS44136 ODERLAND Webbhotell AB
1	7200s	mx3.oderland.com	2a02:28f0::16:1 91.201.62.34	mx3.oderland.com mx3.oderland.com	AS44136 ODERLAND Webbhotell AB AS44136 ODERLAND Webbhotell AB
1	7200s	mx4.oderland.com	2a02:28f0::17:1 91.201.63.5	mx4.oderland.com mx4.oderland.com	AS44136 ODERLAND Webbhotell AB AS44136 ODERLAND Webbhotell AB

🔷 AAAA Records (IPv6)1 records 248ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:28f0:304a:20::	7200s	premium20.oderland.com	AS44136	ODERLAND Webbhotell AB	2a02:28f0:0:0:0:0:0:0/29	🇸🇪 Sweden	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 722ms

TXT Record
v=spf1 ip4:91.201.60.85 +a +mx +include:_vsp.oderland.com ~all

✉️ SPF

Policy	Record (holteninstitute.dk)
~all (soft fail)	v=spf1 ip4:91.201.60.85 +a +mx +include:_vsp.oderland.com ~all

📨 DMARC

Policy	Record (_dmarc.holteninstitute.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.holteninstitute.dk	xCm-7LaRKWvnZ8xlsEKktY4BTZeniQ-RdYs4cTwTtoo

🔗 TLSA / DANE

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

🔐 DNSSEC330ms

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

🏷️ SOA0ms

Field	Value
Serial	2026072502
Primary NS (MNAME)	dns1.oderland.com
Responsible (RNAME)	registry@oderland.se
Refresh	3600s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

478ms

A

482ms

MX

338ms

AAAA

248ms

TXT

722ms

CAA

66ms

HTTPS

246ms

TLSA

458ms

SOA

0ms

MTA-STS

70ms

DNSSEC

330ms

SRV

480ms

Total

2008ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-25 06:50:10	2008ms	3 NS 1 A 4 MX	🔓 Insecure	View
2026-06-27 13:57:28	891ms	3 NS 1 A 4 MX	🔓 Insecure	View
2026-06-23 16:35:49	1139ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 14:22:31	269ms	0 NS 0 A 0 MX	❓ Unknown	View