by-ro.dk DNS records

🖥️ Nameservers2 records 32ms

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 29ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
136.243.123.133	3600s	dedi5059.your-server.de	AS24940	Hetzner Online GmbH	136.243.0.0/16	🇩🇪 Germany	Nuremberg

📧 MX Records1 records 32ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	byro-dk0e.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::d 2a01:111:f403:ca04::f 2a01:111:f403:ca09::b 52.101.68.0 52.101.68.15 52.101.73.12 52.101.73.145	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am6pr02cu00301.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 → 40.104.116.56

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 128ms

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

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.by-ro.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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)

🔐 DNSSEC99ms

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

🏷️ SOA0ms

Field	Value
Serial	2026083101
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

32ms

A

29ms

MX

32ms

AAAA

29ms

TXT

128ms

CAA

23ms

HTTPS

24ms

TLSA

1041ms

SOA

0ms

MTA-STS

42ms

DNSSEC

99ms

SRV

100ms

Total

1535ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 12:42:57	1535ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-17 01:43:23	5241ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-14 09:57:28	1617ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-04 06:57:44	2569ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-30 23:09:34	720ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 18:17:39	5774ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 18:09:20	2390ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 18:03:35	1761ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 18:00:29	2634ms	2 NS 1 A 1 MX	🔒 Secure	View