issk.dk

📜 Historical scan 2026-08-25 23:38:47 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

issk.dk is a .dk domain served by 5 nameservers (ns1.d-n-s.dk, ns2.d-n-s.dk, ns3.d-n-s.dk and 2 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 52.142.195.141 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by issk-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

5 records 79ms

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 Records#

1 records 44ms

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 Records#

1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	issk-dk.mail.protection.outlook.com	2a01:111:f403:ca04::f 2a01:111:f403:ca09:: 2a01:111:f403:ca09::4 2a01:111:f403:ca09::8 52.101.68.12 52.101.68.36 52.101.73.19 52.101.73.4	mail-db7pr03cu00507.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-am0pr83cu00404.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 Records#

1 records 80ms

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

📝 TXT Records#

3 records 222ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-08 07:42:40

www CNAME	issk.dk (all on issk.dk) → 52.142.195.141 (AS8075)
www vs bare domain	Same network issk.dk: 52.142.195.141 (AS8075) www.issk.dk: 52.142.195.141 (AS8075)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

9091ms

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

🏷️ SOA#

0ms

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 yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

79ms

44ms

37ms

AAAA

44ms

TXT

222ms

CAA

64ms

HTTPS

43ms

TLSA

422ms

SOA

0ms

MTA-STS

4038ms

DNSSEC

9091ms

SRV

80ms

Total

12356ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 07:42:40	19314ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-07 07:39:53	21299ms	5 NS 0 A 1 MX	❓ Unknown
2026-10-01 04:51:39	1058ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-25 09:06:41	7285ms	5 NS 1 A 1 MX	🔓 Insecure
2026-08-27 09:51:03	5112ms	5 NS 1 A 1 MX	🔓 Insecure
2026-08-25 23:38:47 shown	12356ms	5 NS 1 A 1 MX	🔓 Insecure
2026-07-29 11:13:47	16753ms	5 NS 1 A 1 MX	🔓 Insecure
2026-07-22 18:29:22	18833ms	5 NS 1 A 1 MX	🔓 Insecure
2026-07-18 16:07:55	24858ms	5 NS 1 A 1 MX	🔓 Insecure
2026-07-10 00:16:17	10507ms	5 NS 1 A 1 MX	🔓 Insecure
2026-06-25 12:47:27	2558ms	5 NS 1 A 1 MX	🔓 Insecure
2026-06-23 20:14:33	899ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 23:24:36	4778ms	5 NS 1 A 1 MX	🔓 Insecure