arcusbyg.dk DNS records

🖥️ Nameservers3 records 98ms

Nameserver	IP addresses	PTR	ASN / ISP
ns4.dns-123.net	35.198.132.83	83.132.198.35.bc.googleusercontent.com	AS396982 Google LLC
ns5.dns-123.net	35.187.184.173	173.184.187.35.bc.googleusercontent.com	AS396982 Google LLC
ns6.dns-123.net	35.228.54.1	1.54.228.35.bc.googleusercontent.com	AS396982 Google LLC

🌍 A Records1 records 98ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.186.164.156	7200s	server7156.serverpark.dk	AS44869	FIBIA P/S	5.186.0.0/16	🇩🇰 Denmark	Frederiksberg

📧 MX Records1 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	7200s	arcusbyg-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::7 2a01:111:f403:ca09::7 2a01:111:f403:ca09::b 52.101.68.27 52.101.68.29 52.101.73.153 52.101.73.28	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00307.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00401.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 → 52.98.149.136
🔶 Autoconfig	5.186.164.156

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 205ms

TXT Record
v=spf1 include:spf.protection.outlook.com ip4:5.186.164.156 -all

✉️ SPF

Policy	Record (arcusbyg.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:5.186.164.156 -all

📨 DMARC

Policy	Record (_dmarc.arcusbyg.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

🔗 TLSA / DANE

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

🔐 DNSSEC182ms

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

🏷️ SOA0ms

Field	Value
Serial	2017062832
Primary NS (MNAME)	ns4.dns-123.net
Responsible (RNAME)	admin@dns-123.net
Refresh	28800s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

98ms

A

98ms

MX

54ms

AAAA

98ms

TXT

205ms

CAA

96ms

HTTPS

94ms

TLSA

152ms

SOA

0ms

MTA-STS

79ms

DNSSEC

182ms

SRV

171ms

Total

981ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-08 23:57:06	981ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-05 06:43:15	575ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-04 06:42:43	1008ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-03 15:30:31	359ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-06-30 16:52:55	994ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 13:38:30	774ms	3 NS 1 A 1 MX	🔒 Secure	View