sfah.dk DNS records

🖥️ Nameservers5 records 47ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.gigahost.dk	46.183.139.31	ns1.gigahost.dk	AS47292 Sentia Denmark A/S
ns2.gigahost.dk	46.183.139.222	web22.gigahost.dk	AS47292 Sentia Denmark A/S
ns3.gigahost.dk	71.19.249.71	ns3.gigahost.dk	AS11831 eSecureData
ns4.gigahost.dk	51.79.215.130	ns4.gigahost.dk	AS16276 OVH SAS
ns5.gigahost.dk	77.74.192.83	ns5.gigahost.dk	AS42831 UK Dedicated Servers Limited

🌍 A Records1 records 47ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.183.138.100	3600s	—	AS47292	Sentia Denmark A/S	46.183.138.0/23	🇩🇰 Denmark	—

📧 MX Records3 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx1.gigahost.dk	46.183.139.11	mx1.gigahost.dk	AS47292 Sentia Denmark A/S
10	3600s	mx2.gigahost.dk	46.183.139.12	mx2.gigahost.dk	AS47292 Sentia Denmark A/S
10	3600s	mx3.gigahost.dk	46.183.139.13	mx3.gigahost.dk	AS47292 Sentia Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	sfah.dk → 46.183.138.100
🔶 Autoconfig	sfah.dk → 46.183.138.100

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 315ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	autodiscover.gigahost.dk

📝 TXT Records3 records 332ms

TXT Record
spf2.0/pra
v=spf1 include:spf.gigahost.dk include:mailchimp.com -all
v=spf1 mx include:spf.gigahost.dk -all

✉️ SPF

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)

Policy	Record (sfah.dk)
-all (hard fail)	v=spf1 include:spf.gigahost.dk include:mailchimp.com -all
-all (hard fail)	v=spf1 mx include:spf.gigahost.dk -all

📨 DMARC

Policy	Record (_dmarc.sfah.dk)
p=reject	v=DMARC1; p=reject;

📬 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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.sfah.dk	sfah.dk

🔗 TLSA / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC114ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2026090301
Primary NS (MNAME)	ns1.gigahost.dk
Responsible (RNAME)	hostmaster@sfah.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 RegistrationWHOIS fetched 2026-06-26 11:25:43

Field	Value
Registrar	GIGAHOST ApS
Registered	1998-08-22
Expires	2026-09-30 (22d)

📋 WHOIS

⏱️ Lookup Timing

NS

47ms

A

47ms

MX

36ms

AAAA

177ms

TXT

332ms

CAA

43ms

HTTPS

44ms

TLSA

57ms

SOA

0ms

MTA-STS

49ms

DNSSEC

114ms

SRV

315ms

Total

752ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-04 09:12:24	752ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-27 14:15:27	815ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-20 15:10:54	1112ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-13 23:43:17	4170ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-09 07:15:50	1964ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-01 16:57:01	1199ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-23 13:40:10	1200ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-17 00:22:13	2848ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-14 12:03:26	1060ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-03 11:58:20	10061ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-26 11:22:22	992ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-24 22:15:40	956ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-24 09:50:50	3960ms	5 NS 1 A 3 MX	❓ Unknown	View
2026-06-23 04:40:59	1115ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 19:42:12	910ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 13:55:42	1622ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-18 01:03:55	1021ms	5 NS 1 A 3 MX	🔓 Insecure	View