simplex-group.dk DNS records

🖥️ Nameservers2 records 142ms

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 79ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
213.5.39.153	—	ispconfig.eero.dk	AS49974	Bo data ApS	213.5.32.0/21	🇩🇰 Denmark	Vildbjerg

📧 MX Records1 records 99ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	simplexgroup-dk01i.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::f 2a01:111:f403:ca09::20 2a01:111:f403:ca09::4 52.101.68.15 52.101.68.21 52.101.68.25 52.101.73.8	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db8pr02cu00101.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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 212ms

TXT Record
MS=ms51707722
v=spf1 a mx include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (simplex-group.dk)
-all (hard fail)	v=spf1 a mx include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.simplex-group.dk)
p=none (monitor only)	v=DMARC1; p=none; aspf=s;

📬 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)

🔐 DNSSEC228ms

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

🏷️ SOA58ms

Field	Value
Serial	2026051202
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

142ms

A

79ms

MX

99ms

AAAA

84ms

TXT

212ms

CAA

87ms

HTTPS

76ms

TLSA

1880ms

SOA

58ms

MTA-STS

104ms

DNSSEC

228ms

SRV

0ms

Total

3948ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 12:24:24	1510ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 05:49:18	1361ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-15 13:17:26	1352ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 00:48:35	9738ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 02:24:17	916ms	2 NS 1 A 1 MX	⚠️ Bogus	View
2026-06-17 13:36:23	3948ms	2 NS 1 A 1 MX	🔒 Secure	View