3f-koebenhavn.dk DNS records

🖥️ Nameservers4 records 109ms

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

🌍

No A records found

📧 MX Records

📧

No MX records found

🔷 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)

🔐 DNSSEC9213ms

Check	Result
Validation Status	❓ Unknown
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: failure

🏷️ SOA

✗ No SOA record found

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

109ms

A

114ms

MX

148ms

AAAA

193ms

TXT

569ms

CAA

211ms

HTTPS

222ms

TLSA

110ms

SOA

154ms

MTA-STS

148ms

DNSSEC

9213ms

SRV

255ms

Total

10110ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 21:49:17	10110ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-24 09:29:26	1275ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-23 08:12:06	10324ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-22 07:52:00	2044ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-21 07:36:16	17062ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-20 07:00:56	5939ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-19 06:12:26	4293ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-18 00:52:03	5589ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-16 21:58:19	17145ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-15 20:21:39	9070ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-14 10:15:01	4786ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-13 08:14:08	5350ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-12 00:41:39	17208ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-10 12:40:47	18676ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-09 04:03:03	2445ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-05 22:03:04	2093ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-31 03:52:51	10388ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-29 09:20:09	1703ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-27 10:28:52	1468ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-26 09:45:53	1122ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-25 09:40:47	1697ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-24 09:08:02	2036ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-23 09:01:49	10224ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-22 08:03:00	3270ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-19 17:32:57	3223ms	4 NS 0 A 0 MX	❓ Unknown	View