zentec.dk DNS records

🖥️ Nameservers2 records 267ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records1 records 227ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.211.38	3600s	domain-parking.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 294ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	zentec-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::8 2a01:111:f403:ca09:: 2a01:111:f403:ca09::6 52.101.68.36 52.101.73.1 52.101.73.15 52.101.73.6	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am6pr04cu00306.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

🔷 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
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records1 records 846ms

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

✉️ SPF

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

🔐 DNSSEC518ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082005
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

267ms

A

227ms

MX

294ms

AAAA

263ms

TXT

846ms

CAA

287ms

HTTPS

299ms

TLSA

343ms

SOA

0ms

MTA-STS

425ms

DNSSEC

518ms

SRV

397ms

Total

7675ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-21 03:01:26	7675ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-15 08:21:00	6029ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-10 00:49:39	5716ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-28 10:52:39	1438ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 13:32:31	938ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 17:20:29	2190ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 03:54:31	1019ms	2 NS 1 A 1 MX	🔒 Secure	View