flx.dk DNS records

🖥️ Nameservers4 records 60ms

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 Records1 records 60ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx.flx.dk	91.221.143.35 91.221.143.35	mx.flexdanmark.dk smtp.flexdanmark.dk	AS59700 Nordjyllands Trafikselskab I/S AS59700 Nordjyllands Trafikselskab I/S

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 169ms

TXT Record
google-site-verification=gsxjA2gbSa7ApU_mXBEvXCjEAOduvC-RxGr4V_tsyAo
v=spf1 mx a include:_spf.simitu.dk ip4:91.221.142.0/23 include:sendgrid.net -all
vpe=9916d815

✉️ SPF

Policy	Record (flx.dk)
-all (hard fail)	v=spf1 mx a include:_spf.simitu.dk ip4:91.221.142.0/23 include:sendgrid.net -all

📨 DMARC

Policy	Record (_dmarc.flx.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:incidents@flexdanmark.dk

📬 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)

🔐 DNSSEC103ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA0ms

Field	Value
Serial	2026081701
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

60ms

A

55ms

MX

60ms

AAAA

67ms

TXT

169ms

CAA

68ms

HTTPS

50ms

TLSA

63ms

SOA

0ms

MTA-STS

71ms

DNSSEC

103ms

SRV

79ms

Total

887ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-18 02:18:26	887ms	4 NS 0 A 1 MX	🔒 Secure	View
2026-08-05 01:14:21	1035ms	4 NS 0 A 1 MX	🔒 Secure	View
2026-07-21 04:37:37	979ms	4 NS 0 A 1 MX	🔒 Secure	View
2026-07-17 12:56:09	1086ms	4 NS 0 A 1 MX	🔒 Secure	View
2026-07-14 15:05:45	823ms	4 NS 0 A 1 MX	🔒 Secure	View
2026-07-13 02:04:13	8707ms	4 NS 0 A 1 MX	🔒 Secure	View
2026-07-06 20:55:11	1965ms	4 NS 0 A 1 MX	🔒 Secure	View
2026-07-01 12:51:15	1473ms	4 NS 0 A 1 MX	🔒 Secure	View
2026-06-23 14:04:04	721ms	4 NS 0 A 1 MX	🔒 Secure	View
2026-06-23 00:06:25	1101ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 02:36:42	1327ms	4 NS 0 A 1 MX	🔒 Secure	View
2026-06-17 10:09:28	524ms	4 NS 0 A 1 MX	🔒 Secure	View