holmteknik.dk DNS records

🖥️ Nameservers4 records 38ms

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
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records1 records 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.31	3600s	linux181.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records1 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	holmteknik-dk.mail.protection.outlook.com	2a01:111:f403:ca04::f 2a01:111:f403:ca09::1 2a01:111:f403:ca09::28 2a01:111:f403:ca09::b 52.101.73.126 52.101.73.24 52.101.73.4 52.101.73.8	mail-db7pr03cu00507.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-as8pr05cu00300.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.104.116.8
🔶 Autoconfig	93.191.156.31

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 91ms

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

📝 TXT Records2 records 171ms

TXT Record
MS=ms93910340
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.holmteknik.dk)
p=none (monitor only)	v=DMARC1; p=none; pct=100

📬 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)

🔐 DNSSEC111ms

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

🏷️ SOA0ms

Field	Value
Serial	2025013003
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

38ms

A

45ms

MX

51ms

AAAA

48ms

TXT

171ms

CAA

40ms

HTTPS

38ms

TLSA

890ms

SOA

0ms

MTA-STS

89ms

DNSSEC

111ms

SRV

91ms

Total

1465ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-02 02:27:37	1465ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-28 06:44:13	2047ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 05:02:34	1011ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 07:20:13	1105ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 13:42:33	2987ms	4 NS 1 A 1 MX	🔒 Secure	View