certuscloud.dk

📜 Historical scan 2026-06-19 19:35:28 · ← 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 53ms

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 54ms

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 56ms

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#

134ms

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

🏷️ SOA#

50ms

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#

53ms

54ms

56ms

AAAA

58ms

TXT

333ms

CAA

56ms

HTTPS

65ms

TLSA

68ms

SOA

50ms

MTA-STS

60ms

DNSSEC

134ms

SRV

143ms

Total

630ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
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
2026-09-23 20:34:23	431ms	4 NS 1 A 1 MX	🔒 Secure