cissp.dk

Records from scan: 2026-10-13 23:45:28 · 427ms total · last checked 2026-10-18 02:00 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cissp.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 27 March 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 188.179.219.240 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by asav01.potestas.dk. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 25ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
188.179.219.240	3600s	188-179-219-240-cable.dk.customer.tdc.net	AS3292	TDC Holding A/S	188.176.0.0/13	🇩🇰 Denmark	Kongens Lyngby

📧 MX Records#

1 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	asav01.potestas.dk	77.83.76.244	avs.sipato.com	AS50364 Sipato ApS

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	188.179.219.240
🔶 Autoconfig	188.179.219.240

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 169ms

TXT Record
MS=ms88263785
v=spf1 a mx -all

✉️ SPF#

Policy	Record (cissp.dk)
-all (hard fail)	v=spf1 a mx -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

🧩 Web & zone#

checked 2026-10-13 23:45:28

www	188.179.219.240 (AS3292) (address records, no CNAME)
www vs bare domain	Same network cissp.dk: 188.179.219.240 (AS3292) www.cissp.dk: 188.179.219.240 (AS3292)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

49ms

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

🏷️ SOA#

44ms

Field	Value
Serial	2026101301
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-14 00:04:46

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-03-27
Expires	2030-03-31 (1259d)

📋 WHOIS#

⏱️ Lookup Timing#

25ms

37ms

33ms

AAAA

36ms

TXT

169ms

CAA

32ms

HTTPS

39ms

TLSA

57ms

SOA

44ms

MTA-STS

52ms

DNSSEC

49ms

SRV

55ms

Total

427ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 23:45:28 shown	427ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 11:56:20	569ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 16:01:15	1244ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 22:11:14	835ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-23 11:51:14	8570ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 15:01:34	4266ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 20:55:33	538ms	2 NS 1 A 1 MX	🔒 Secure