r-kro.dk DNS records

🖥️ Nameservers2 records 57ms

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 75ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.237.125.110	3600s	web01.simpleagencygroup.dk	AS210939	Procopa IT ApS	185.237.124.0/22	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 81ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	rkro-dk0c.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca04::a 2a01:111:f403:ca09::a 2a01:111:f403:ca38::8 52.101.103.137 52.101.68.3 52.101.73.1 52.101.73.2	mail-db7pr03cu00601.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-as9pr07cu00302.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 Records4 records 292ms

TXT Record
google-site-verification=mzpmeYAaNh6dVXML-znEoqb0OVrInj7dJXX6OYwdKHs
google-site-verification=sb9SbtD4H7dEngAsQOGzUPkCetWkSA9KP-52d26LJx0
MS=ms21095936
v=spf1 ip4:216.55.99.117 ip4:216.55.101.96 ip4:94.18.237.216 include:_custspf.one.com include:spf.protection.outlook.com include:spf.hostingconnection.eu include:spectra-systems.eu -all

✉️ SPF

Policy	Record (r-kro.dk)
-all (hard fail)	v=spf1 ip4:216.55.99.117 ip4:216.55.101.96 ip4:94.18.237.216 include:_custspf.one.com include:spf.protection.outlook.com include:spf.hostingconnection.eu include:spectra-systems.eu -all

📨 DMARC

Policy	Record (_dmarc.r-kro.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)

🔐 DNSSEC261ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082901
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

57ms

A

75ms

MX

81ms

AAAA

85ms

TXT

292ms

CAA

112ms

HTTPS

146ms

TLSA

717ms

SOA

0ms

MTA-STS

146ms

DNSSEC

261ms

SRV

151ms

Total

1737ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 02:13:44	1737ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 19:20:25	1024ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-21 04:31:49	5761ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-19 01:02:09	16842ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-03 08:59:55	1193ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-24 21:21:28	1275ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 00:41:43	2253ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 13:11:24	920ms	2 NS 1 A 1 MX	🔒 Secure	View