optimo.dk DNS records

🖥️ Nameservers3 records 55ms

Nameserver	IP addresses	PTR	ASN / ISP
ns4.hostonline.dk	217.195.185.243 2a02:188:6004:14::10	ns4.hostonline.dk ns4.hostonline.dk	AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S
ns5.hostonline.dk	217.195.185.244 2a02:188:6004:14::11	ns5.hostonline.dk ns5.hostonline.dk	AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S
ns6.hostonline.dk	85.191.126.85	ns6.hostonline.dk	AS204274 AURA Fiber A/S

🌍 A Records1 records 55ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.195.185.215	3600s	webhotel07.hostonline.dk	AS31027	GlobalConnect A/S	217.195.176.0/20	🇩🇰 Denmark	—

📧 MX Records2 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	60s	he.hostonline.dk	217.195.185.200 2a02:188:164::100	he.hostonline.dk he.hostonline.dk	AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S
30	60s	mx-backup.hostonline.dk	217.195.185.201 2a02:188:6004:15::12	mx-backup.hostonline.dk spamfront2.hostonline.dk	AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscoverredirect.hostonline.dk → 217.195.185.209

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 252ms

TXT Record
v=spf1 a mx include:_spf.hostonline.dk -all

✉️ SPF

Policy	Record (optimo.dk)
-all (hard fail)	v=spf1 a mx include:_spf.hostonline.dk -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)

🔐 DNSSEC138ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082702
Primary NS (MNAME)	ns4.hostonline.dk
Responsible (RNAME)	hostmaster@optimo.dk
Refresh	16384s
Retry	2048s
Expire	1048576s
Minimum (neg-cache TTL)	2560s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

55ms

A

55ms

MX

54ms

AAAA

811ms

TXT

252ms

CAA

51ms

HTTPS

810ms

TLSA

2028ms

SOA

0ms

MTA-STS

63ms

DNSSEC

138ms

SRV

103ms

Total

3197ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 10:58:46	3197ms	3 NS 1 A 2 MX	🔒 Secure	View
2026-08-22 19:06:46	1030ms	3 NS 1 A 2 MX	🔒 Secure	View
2026-08-18 17:29:45	3140ms	3 NS 1 A 2 MX	🔒 Secure	View
2026-08-13 17:54:26	867ms	3 NS 1 A 2 MX	🔒 Secure	View
2026-08-08 01:53:41	986ms	3 NS 1 A 2 MX	🔒 Secure	View
2026-08-03 20:12:39	4190ms	3 NS 1 A 2 MX	🔒 Secure	View
2026-07-29 03:14:05	9774ms	3 NS 1 A 2 MX	🔒 Secure	View
2026-07-23 12:51:30	8906ms	3 NS 1 A 2 MX	🔒 Secure	View
2026-07-18 15:26:37	2609ms	3 NS 1 A 2 MX	🔒 Secure	View
2026-07-14 11:25:51	8684ms	3 NS 1 A 2 MX	🔒 Secure	View
2026-07-08 10:53:46	904ms	3 NS 1 A 2 MX	🔒 Secure	View
2026-07-03 13:17:55	578ms	3 NS 1 A 2 MX	🔒 Secure	View
2026-07-01 09:47:57	928ms	3 NS 1 A 2 MX	🔒 Secure	View
2026-06-26 19:47:25	5593ms	3 NS 1 A 2 MX	🔒 Secure	View
2026-06-24 02:14:08	1102ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-23 22:16:56	1521ms	3 NS 1 A 2 MX	🔒 Secure	View
2026-06-22 19:01:33	1270ms	3 NS 1 A 2 MX	🔒 Secure	View
2026-06-22 18:41:39	913ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-19 23:00:39	3317ms	3 NS 1 A 2 MX	🔒 Secure	View
2026-06-18 02:18:23	2479ms	3 NS 1 A 2 MX	🔒 Secure	View