tek-isolering.dk DNS records

🖥️ Nameservers2 records 60ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.dnsserver.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dnsserver.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records1 records 60ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.8.37.83	10800s	—	AS3308	Norlys Digital A/S	193.8.36.0/23	🇩🇰 Denmark	Ølstykke

📧 MX Records1 records 69ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	tekisolering-dk0i.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca04::c 2a01:111:f403:ca04::e 2a01:111:f403:ca09::9 52.101.68.15 52.101.68.29 52.101.68.8 52.101.73.11	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am1pr04cu00103.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 → 40.101.27.137

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 162ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records1 records 265ms

TXT Record
v=spf1 include:spf.protection.outlook.com ip4:193.8.36.0/22 -all

✉️ SPF

Policy	Record (tek-isolering.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:193.8.36.0/22 -all

📨 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

🔗 TLSA / DANE

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

🔐 DNSSEC155ms

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

🏷️ SOA116ms

Field	Value
Serial	2025122901
Primary NS (MNAME)	ns1.dnsserver.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

60ms

A

60ms

MX

69ms

AAAA

104ms

TXT

265ms

CAA

57ms

HTTPS

61ms

TLSA

231ms

SOA

116ms

MTA-STS

90ms

DNSSEC

155ms

SRV

162ms

Total

17139ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-26 07:39:45	17139ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 18:24:06	2042ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 02:31:28	1902ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 12:33:23	952ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 01:37:57	1248ms	2 NS 1 A 1 MX	🔒 Secure	View