round.dk DNS records

🖥️ Nameservers2 records 88ms

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 49ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
75.2.60.5	3600s	acd89244c803f7181.awsglobalaccelerator.com	AS16509	Amazon.com, Inc.	75.2.0.0/17	🇺🇸 United States	—

📧 MX Records1 records 49ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	round-dk.h-v1.mx.microsoft	2a01:111:f403:ca04::e 2a01:111:f403:ca09:: 2a01:111:f403:ca09::2 2a01:111:f403:ca09::6 52.101.68.3 52.101.73.28 52.101.73.4 52.101.73.6	mail-db8pr02cu00106.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com mail-am0pr83cu00404.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

📝 TXT Records1 records 401ms

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

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.round.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:ba8a438ba76b831@rep.dmarcanalyzer.com; ruf=mailto:ba8a438ba76b831@for.dmarcanalyzer.com; sp=none; fo=1;

📬 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)

🔐 DNSSEC83ms

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

🏷️ SOA47ms

Field	Value
Serial	2026060901
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

88ms

A

49ms

MX

49ms

AAAA

42ms

TXT

401ms

CAA

92ms

HTTPS

95ms

TLSA

176ms

SOA

47ms

MTA-STS

49ms

DNSSEC

83ms

SRV

120ms

Total

888ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 02:19:00	2613ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-18 23:35:10	36509ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-10 08:10:50	4076ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-29 17:52:46	4939ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-09 18:33:19	1644ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 15:55:43	593ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 14:27:39	1143ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-23 12:06:06	1194ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 00:00:52	888ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 11:33:55	716ms	2 NS 1 A 1 MX	🔒 Secure	View