certuscloud.dk

📜 Historical scan 2026-06-21 22:31:05 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

certuscloud.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 26 September 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.100 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mail.certuscloud.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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records 82ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 92ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.100	600s	dnsforward.simply.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 46ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail.certuscloud.dk	—	—	—

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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)

🔐 DNSSEC#

140ms

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

🏷️ SOA#

43ms

Field	Value
Serial	2024050100
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-09-30 14:51:03

Field	Value
Registrar	Simply.com A/S
Registered	2022-09-26
Expires	2026-09-25 (expired)

📋 WHOIS#

⏱️ Lookup Timing#

82ms

92ms

46ms

AAAA

127ms

TXT

218ms

CAA

43ms

HTTPS

44ms

TLSA

57ms

SOA

43ms

MTA-STS

33ms

DNSSEC

140ms

SRV

120ms

Total

472ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-23 17:12:56	325ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-22 00:50:21	349ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-20 17:06:31	111ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-19 11:31:42	221ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-18 11:14:32	103ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-17 11:12:30	215ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-16 10:59:25	310ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-15 05:10:18	343ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-14 03:30:07	287ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-12 19:51:43	167ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-11 18:40:47	203ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-10 17:37:50	327ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-09 13:30:42	794ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-09 03:47:46	778ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-08 03:42:03	565ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-07 03:35:49	580ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-06 02:58:38	154ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-05 02:55:55	920ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-04 02:48:21	179ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-03 02:46:10	105ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-02 02:44:05	544ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-01 02:37:42	231ms	1 NS 0 A 0 MX	❓ Unknown
2026-09-30 02:27:38	620ms	1 NS 0 A 0 MX	❓ Unknown
2026-09-30 00:08:22	249ms	1 NS 0 A 0 MX	❓ Unknown
2026-09-29 00:02:46	916ms	1 NS 0 A 0 MX	❓ Unknown