3333.dk DNS records

🖥️ Nameservers3 records 125ms

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

🌍 A Records1 records 88ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
188.228.54.137	3600s	188.228.54.137.dynamic.altibox.net	AS214875	Altibox Danmark AS	188.228.54.0/24	🇩🇰 Denmark	Dronninglund

📧 MX Records1 records 94ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	mail.7a.dk	188.228.54.137 2a00:fd01:8146:3d00::30	188.228.54.137.dynamic.altibox.net —	AS214875 Altibox Danmark AS AS214875 Altibox Danmark AS

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	188.228.54.137
🔶 Autoconfig	188.228.54.137

🔷 AAAA Records (IPv6)1 records 82ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a00:fd01:8146:3d00:215:5dff:fe02:6d04	600s	—	AS214875	Altibox Danmark AS	2a00:fd01:0:0:0:0:0:0/32	🇩🇰 Denmark	Grindsted

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 1061ms

TXT Record
v=spf1 include:spf.mailjet.com include:spf.simply.com -all

✉️ SPF

Policy	Record (3333.dk)
-all (hard fail)	v=spf1 include:spf.mailjet.com include:spf.simply.com -all

📨 DMARC

Policy	Record (_dmarc.3333.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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.3333.dk	ee82bfdb-8ebe-4024-948d-154cf4acc5f6.c-8a1f.tx.auth.certifytheweb.com
TXT	ee82bfdb-8ebe-4024-948d-154cf4acc5f6.c-8a1f.tx.auth.certifytheweb.com	HSs__tgW0a9b_7i_MDC6wf0BOrXpMLAtvBMwKI5kFvw
TXT	ee82bfdb-8ebe-4024-948d-154cf4acc5f6.c-8a1f.tx.auth.certifytheweb.com	Sv3gEHpCcu9u0Amb0RCbdxK4Z454p063wXn1r1qZcDc

🔗 TLSA / DANE

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

🔐 DNSSEC357ms

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

🏷️ SOA0ms

Field	Value
Serial	2026083101
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

125ms

A

88ms

MX

94ms

AAAA

82ms

TXT

1061ms

CAA

112ms

HTTPS

80ms

TLSA

171ms

SOA

0ms

MTA-STS

178ms

DNSSEC

357ms

SRV

167ms

Total

2054ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 10:51:21	2054ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-29 14:30:51	1646ms	3 NS 0 A 1 MX	🔒 Secure	View
2026-08-27 04:04:58	1439ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-06 16:27:19	1961ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 07:51:53	2509ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 20:31:00	895ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 12:45:24	667ms	3 NS 1 A 1 MX	🔒 Secure	View