0100.dk DNS records

🖥️ Nameservers4 records 59ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records1 records 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
134.209.241.243	600s	—	AS14061	DigitalOcean, LLC	134.209.0.0/16	🇩🇪 Germany	Frankfurt am Main

📧 MX Records1 records 49ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	0100-dk.mail.protection.outlook.com	2a01:111:f403:ca04::d 2a01:111:f403:ca09::28 2a01:111:f403:ca09::4 2a01:111:f403:ca09::d 52.101.181.153 52.101.68.5 52.101.73.153 52.101.73.30	mail-db6pr03cu00105.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-am7pr05cu00306.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
🔶 Autoconfig	134.209.241.243

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 79ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records1 records 194ms

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

✉️ SPF

Policy	Record (0100.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.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)

🔐 DNSSEC94ms

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

🏷️ SOA0ms

Field	Value
Serial	2025020406
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

59ms

A

44ms

MX

49ms

AAAA

52ms

TXT

194ms

CAA

67ms

HTTPS

57ms

TLSA

600ms

SOA

0ms

MTA-STS

56ms

DNSSEC

94ms

SRV

79ms

Total

1269ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 08:47:51	1269ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-08-16 19:47:26	1147ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 17:58:44	1513ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 03:40:08	1160ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-23 07:12:15	1171ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-22 14:29:38	2094ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 22:53:07	1169ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 20:33:15	680ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 12:33:53	1500ms	4 NS 1 A 1 MX	🔒 Secure	View