carsten-knudsen.dk DNS records

🖥️ Nameservers2 records 42ms

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 33ms

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

📧 MX Records1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	carstenknudsen-dk01i.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca09:: 2a01:111:f403:ca09::26 2a01:111:f403:ca09::4 52.101.103.140 52.101.68.0 52.101.73.11 52.101.73.26	mail-db4pr02cu00204.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as9pr05cu01302.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 Records1 records 55ms

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

📝 TXT Records2 records 155ms

TXT Record
teamtailor=62f1b2e721c45b9dfa912a5fd90a380f
v=spf1 include:spf.protection.outlook.com include:spf-esec.heimdalsecurity.com ip4:193.8.36.0/22 ip4:5.103.15.29 -all

✉️ SPF

Policy	Record (carsten-knudsen.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf-esec.heimdalsecurity.com ip4:193.8.36.0/22 ip4:5.103.15.29 -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)

🔐 DNSSEC120ms

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

🏷️ SOA0ms

Field	Value
Serial	2026061501
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

42ms

A

33ms

MX

38ms

AAAA

39ms

TXT

155ms

CAA

67ms

HTTPS

41ms

TLSA

853ms

SOA

0ms

MTA-STS

64ms

DNSSEC

120ms

SRV

55ms

Total

1552ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 19:31:50	1552ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-25 21:09:43	920ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-02 00:24:58	807ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 20:26:27	8939ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 19:45:47	2340ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 19:31:12	647ms	2 NS 1 A 1 MX	🔒 Secure	View