arpekjeldsholm.dk DNS records

🖥️ Nameservers4 records 283ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.eurodns.com	199.167.66.107 2610:1c8:b002::107	ns1.eurodns.com ns1.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns2.eurodns.com	104.37.178.107 2610:1c8:b001::107	ns2.eurodns.com ns2.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns3.eurodns.com	199.167.66.108 2610:1c8:b002::108	ns3.eurodns.com ns3.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns4.eurodns.com	104.37.178.108 2610:1c8:b001::108	ns4.eurodns.com ns4.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC

🌍 A Records1 records 182ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.8.37.10	3600s	—	AS3308	Norlys Telco A/S	193.8.36.0/23	🇩🇰 Denmark	Ølstykke

📧 MX Records1 records 288ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	arpekjeldsholm-dk.mail.protection.outlook.com	2a01:111:f403:ca09::8 2a01:111:f403:ca09::c 2a01:111:f403:ca09::d 2a01:111:f403:ca09::f 52.101.73.12 52.101.73.153 52.101.73.2 52.101.73.28	mail-as2pr05cu00100.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-am7pr05cu00204.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 → 52.97.153.168
🔶 Autoconfig	193.8.37.10

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 539ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	10	1	5061	sipfed.online.lync.com

📝 TXT Records1 records 557ms

TXT Record
v=spf1 mx a ip4:93.90.117.1/24 ip4:93.90.115.1/24 include:spf.protection.outlook.com include:spf-esec.heimdalsecurity.com include:_spf.centiumsecurity.dk -all

✉️ SPF

Policy	Record (arpekjeldsholm.dk)
-all (hard fail)	v=spf1 mx a ip4:93.90.117.1/24 ip4:93.90.115.1/24 include:spf.protection.outlook.com include:spf-esec.heimdalsecurity.com include:_spf.centiumsecurity.dk -all

📨 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)

🔐 DNSSEC355ms

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

🏷️ SOA174ms

Field	Value
Serial	2025072804
Primary NS (MNAME)	ns1.eurodns.com
Responsible (RNAME)	hostmaster@eurodns.com
Refresh	86400s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

283ms

A

182ms

MX

288ms

AAAA

289ms

TXT

557ms

CAA

172ms

HTTPS

182ms

TLSA

266ms

SOA

174ms

MTA-STS

188ms

DNSSEC

355ms

SRV

539ms

Total

1503ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-24 19:47:05	1503ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-22 05:40:22	1111ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 18:50:18	2266ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-19 17:26:31	874ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 13:41:38	1086ms	4 NS 1 A 1 MX	🔓 Insecure	View