optimize.dk DNS records

🖥️ Nameservers2 records 43ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.efclausen.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.efclausen.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records1 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.251	3600s	linux8.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	optimize-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca09::20 2a01:111:f403:ca09::4 2a01:111:f403:ca48::a 52.101.68.18 52.101.68.3 52.101.73.153 52.101.73.24	mail-db4pr02cu00406.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as8pr05cu00300.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 → 40.104.116.24
🔶 Autoconfig	185.21.42.35

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 145ms

TXT Record
google-site-verification=VybJQ8YikNdK3mEeN6m_506bHyKOjNR_Mp9hDR62YoI
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.optimize.dk)
p=reject	v=DMARC1; p=reject; pct=100; fo=1

📬 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)

🔐 DNSSEC84ms

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

🏷️ SOA0ms

Field	Value
Serial	2026041301
Primary NS (MNAME)	ns1.efclausen.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

43ms

A

43ms

MX

34ms

AAAA

40ms

TXT

145ms

CAA

40ms

HTTPS

40ms

TLSA

180ms

SOA

0ms

MTA-STS

66ms

DNSSEC

84ms

SRV

64ms

Total

1106ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 01:55:10	1106ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 02:41:29	857ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 12:06:26	1049ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 18:51:32	731ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 01:03:37	996ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 06:45:39	765ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 19:01:09	1279ms	2 NS 1 A 1 MX	⚠️ Bogus	View
2026-06-17 22:46:18	3796ms	2 NS 1 A 1 MX	🔒 Secure	View