arenasyd.dk DNS records

🖥️ Nameservers3 records 217ms

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 239ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.38	3418s	linux78.unoeuro.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records1 records 244ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	arenasyd-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::10 2a01:111:f403:ca04::9 2a01:111:f403:ca09:: 52.101.68.21 52.101.68.39 52.101.73.15 52.101.73.8	mail-db7pr03cu00401.inbound.protection.outlook.com mail-dbapr03cu00100.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am0pr04cu00500.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24
🔶 Autoconfig	autoconfig-mf.onlinemail.io → 185.21.40.62

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 397ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com

📝 TXT Records1 records 647ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:postfilter.dk include:spf.simply.com -all

✉️ SPF

Policy	Record (arenasyd.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:postfilter.dk include:spf.simply.com -all

📨 DMARC

Policy	Record (_dmarc.arenasyd.dk)
p=quarantine	v=DMARC1; p=quarantine; ruf=mailto:bgl@arenasyd.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)

🔐 DNSSEC336ms

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

🏷️ SOA249ms

Field	Value
Serial	2026043008
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

217ms

A

239ms

MX

244ms

AAAA

247ms

TXT

647ms

CAA

227ms

HTTPS

233ms

TLSA

869ms

SOA

249ms

MTA-STS

231ms

DNSSEC

336ms

SRV

397ms

Total

2610ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-24 19:01:55	2610ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-23 11:54:01	4428ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-22 04:39:46	904ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 22:05:00	992ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 13:39:15	2734ms	3 NS 1 A 1 MX	🔓 Insecure	View