rsedk.dk DNS records

🖥️ Nameservers2 records 36ms

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 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.98	600s	linux26.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	rsedk-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca09::3 2a01:111:f403:ca09::a 2a01:111:f403:ca48::a 52.101.103.140 52.101.68.16 52.101.73.1 52.101.73.26	mail-db4pr02cu00406.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-as9pr05cu01302.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 → 40.104.116.40
🔶 Autoconfig	185.21.41.98

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 181ms

TXT Record
[14.08.2026]
MS=ms40288507
v=spf1 include:spf.curanet.dk include:spf.protection.outlook.com include:_custspf.one.com -all

✉️ SPF

Policy	Record (rsedk.dk)
-all (hard fail)	v=spf1 include:spf.curanet.dk include:spf.protection.outlook.com include:_custspf.one.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)

🔐 DNSSEC2055ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081401
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

36ms

A

40ms

MX

31ms

AAAA

30ms

TXT

181ms

CAA

51ms

HTTPS

40ms

TLSA

793ms

SOA

0ms

MTA-STS

58ms

DNSSEC

2055ms

SRV

61ms

Total

3369ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 21:36:49	3369ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-15 02:40:10	3240ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-13 23:19:03	1800ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-17 19:49:08	5331ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-15 22:29:19	1079ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 16:34:00	1091ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 12:55:43	2716ms	2 NS 1 A 1 MX	🔒 Secure	View