3f-k.dk DNS records

🖥️ Nameservers4 records 157ms

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)

🔐 DNSSEC234ms

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

157ms

A

138ms

MX

170ms

AAAA

135ms

TXT

17191ms

CAA

167ms

HTTPS

161ms

TLSA

126ms

SOA

24ms

MTA-STS

111ms

DNSSEC

234ms

SRV

432ms

Total

18169ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-23 11:39:13	18169ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-22 08:18:24	18562ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-21 07:57:15	10556ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-20 06:05:36	3370ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-19 03:37:50	7293ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-17 23:34:25	26517ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-16 15:04:30	4930ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-14 23:34:34	1691ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-12 19:11:19	10281ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-10 12:36:23	3500ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-09 10:11:58	10183ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-08-06 04:25:07	1887ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-29 18:02:52	10155ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-27 21:31:19	10363ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-26 21:04:54	33444ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-25 21:01:29	1545ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-24 20:41:19	1694ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-23 15:53:49	10256ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-22 14:57:21	10515ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-21 05:44:29	3718ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-20 01:32:42	1439ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-18 20:57:12	10398ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-17 19:39:50	1481ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-16 06:50:26	1601ms	4 NS 0 A 0 MX	❓ Unknown	View
2026-07-12 12:02:17	1483ms	4 NS 0 A 0 MX	❓ Unknown	View