srd.dk DNS records

🖥️ Nameservers2 records 243ms

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 266ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.95	3600s	webcluster1.webpod16-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 271ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	srd-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca09::1 2a01:111:f403:ca09::8 2a01:111:f403:ca09::b 52.101.68.15 52.101.68.29 52.101.68.8 52.101.73.8	mail-db7pr03cu00601.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-du0pr03cu00100.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

🔷 AAAA Records (IPv6)1 records 290ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:111:fd:e6b4:6897:1a6d	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 322ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records1 records 895ms

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

✉️ SPF

Policy	Record (srd.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)

🔐 DNSSEC494ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081905
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

243ms

A

266ms

MX

271ms

AAAA

290ms

TXT

895ms

CAA

286ms

HTTPS

294ms

TLSA

361ms

SOA

0ms

MTA-STS

355ms

DNSSEC

494ms

SRV

322ms

Total

7938ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-20 14:30:18	7938ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-09 18:54:56	1715ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-07 23:40:13	2018ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 03:40:26	788ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 17:17:09	1182ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 11:13:41	1221ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 01:15:16	834ms	2 NS 1 A 1 MX	🔒 Secure	View