zyxel.dk DNS records

🖥️ Nameservers2 records 36ms

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 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
212.98.95.181	600s	—	AS42525	GlobalConnect A/S	212.98.64.0/18	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	zyxel-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::9 2a01:111:f403:ca09::4 2a01:111:f403:ca09::9 52.101.68.0 52.101.68.18 52.101.68.25 52.101.68.8	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-du0pr03cu00100.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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 156ms

TXT Record
22YpOorOloBh80Iq4LOxGMoNqwoLCcqDc2lBVul23E7ZWjwgswedb3weFe6V9bEoHgBL+zl43adgLkaEq01RzQ==
MS=ms39676951
v=spf1 mx include:spf.zyxel.eu include:mktomail.com include:mail.zendesk.com include:spf.protection.outlook.com include:servers.mcsv.net include:_spf.emailcampaigns.net ~all

✉️ SPF

Policy	Record (zyxel.dk)
~all (soft fail)	v=spf1 mx include:spf.zyxel.eu include:mktomail.com include:mail.zendesk.com include:spf.protection.outlook.com include:servers.mcsv.net include:_spf.emailcampaigns.net ~all

📨 DMARC

Policy	Record (_dmarc.zyxel.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:pvu1jcxg@ag.eu.dmarcian.com, mailto:sl@zyxel.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)

🔐 DNSSEC67ms

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

🏷️ SOA31ms

Field	Value
Serial	2026032501
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

36ms

A

32ms

MX

31ms

AAAA

48ms

TXT

156ms

CAA

32ms

HTTPS

32ms

TLSA

155ms

SOA

31ms

MTA-STS

39ms

DNSSEC

67ms

SRV

38ms

Total

716ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-01 03:24:16	716ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 14:27:29	655ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 21:17:24	1241ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 11:37:17	956ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 15:01:19	2614ms	2 NS 1 A 1 MX	🔒 Secure	View