dcy.dk DNS records

🖥️ Nameservers2 records 178ms

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 173ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
137.117.252.151	43200s	—	AS8075	Microsoft Corporation	137.116.0.0/15	🇳🇱 The Netherlands	Amsterdam

📧 MX Records1 records 195ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	43200s	dcy-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::9 2a01:111:f403:ca04::a 2a01:111:f403:ca09::20 52.101.68.29 52.101.68.5 52.101.73.153 52.101.73.24	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as8pr05cu00300.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
🔶 Autoconfig	dcy.dk → 137.117.252.151

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 418ms

TXT Record
MS=ms52450694
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (dcy.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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.dcy.dk	dcy.dk

🔗 TLSA / DANE

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

🔐 DNSSEC305ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081001
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

178ms

A

173ms

MX

195ms

AAAA

188ms

TXT

418ms

CAA

183ms

HTTPS

181ms

TLSA

452ms

SOA

0ms

MTA-STS

247ms

DNSSEC

305ms

SRV

231ms

Total

2507ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-10 23:44:33	2507ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-25 14:59:48	5688ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-16 16:44:15	1322ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-12 01:33:20	1268ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 00:16:53	928ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 06:16:55	2203ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 02:22:55	773ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 12:36:20	3117ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 22:25:54	943ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 01:35:17	2308ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 19:48:16	977ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 01:24:32	566ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 01:21:20	684ms	2 NS 1 A 1 MX	🔒 Secure	View