issk.dk DNS records

🖥️ Nameservers5 records 62ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.d-n-s.dk	185.215.92.135	—	AS209959 Mark Weber Andersen
ns2.d-n-s.dk	185.215.92.136	—	AS209959 Mark Weber Andersen
ns3.d-n-s.dk	185.215.92.137	—	AS209959 Mark Weber Andersen
ns4.d-n-s.dk	185.215.92.138	—	AS209959 Mark Weber Andersen
ns5.d-n-s.dk	185.215.92.139	—	AS209959 Mark Weber Andersen

🌍 A Records1 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
52.142.195.141	3600s	web346.mwahost.com	AS8075	Microsoft Corporation	52.136.0.0/13	🇳🇱 The Netherlands	Amsterdam

📧 MX Records1 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	issk-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca04::6 2a01:111:f403:ca04::8 2a01:111:f403:ca04::e 52.101.68.39 52.101.68.5 52.101.73.11 52.101.73.19	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as8pr04cu00803.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 → 52.98.154.152

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 110ms

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

📝 TXT Records3 records 173ms

TXT Record
DNS-Service by D-N-S.DK
MS=ms97505498
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (issk.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.issk.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:dmarc@issk.dk; ruf=mailto:dmarc@issk.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)

🔐 DNSSEC86ms

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	2025030400
Primary NS (MNAME)	ns1.d-n-s.dk
Responsible (RNAME)	hostmaster@d-n-s.dk
Refresh	7200s
Retry	120s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

62ms

A

43ms

MX

36ms

AAAA

53ms

TXT

173ms

CAA

72ms

HTTPS

62ms

TLSA

394ms

SOA

0ms

MTA-STS

63ms

DNSSEC

86ms

SRV

110ms

Total

5112ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 09:51:03	5112ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-08-25 23:38:47	12356ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-07-29 11:13:47	16753ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-07-22 18:29:22	18833ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-07-18 16:07:55	24858ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-07-10 00:16:17	10507ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-06-25 12:47:27	2558ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-06-23 20:14:33	899ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 23:24:36	4778ms	5 NS 1 A 1 MX	🔓 Insecure	View