open-top.dk DNS records

🖥️ Nameservers5 records 54ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.gigahost.dk	46.183.139.31	—	AS47292 Sentia Denmark A/S
ns2.gigahost.dk	46.183.139.222	web22.gigahost.dk	AS47292 Sentia Denmark A/S
ns3.gigahost.dk	71.19.249.71	ns3.gigahost.dk	AS11831 eSecureData
ns4.gigahost.dk	51.79.215.130	ns4.gigahost.dk	AS16276 OVH SAS
ns5.gigahost.dk	77.74.192.83	ns5.gigahost.dk	AS42831 UK Dedicated Servers Limited

🌍 A Records1 records 54ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.116.232.224	3600s	224.giga-ptr.232.116.217.in-addr.arpa web24.gigahost.dk	AS47292	Sentia Denmark A/S	217.116.224.0/20	🇩🇰 Denmark	—

📧 MX Records2 records 49ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	eu-smtp-inbound-1.mimecast.com	195.130.217.201 195.130.217.201 195.130.217.211 195.130.217.211 195.130.217.241 195.130.217.241 91.220.42.201 91.220.42.201 91.220.42.211 91.220.42.211 91.220.42.241 91.220.42.241	eu-smtp-inbound-1.mimecast.com eu-smtp-inbound-2.mimecast.com eu-smtp-inbound-1.mimecast.com eu-smtp-inbound-2.mimecast.com eu-smtp-inbound-2.mimecast.com eu-smtp-inbound-1.mimecast.com eu-smtp-inbound-1.mimecast.com eu-smtp-inbound-2.mimecast.com eu-smtp-inbound-1.mimecast.com eu-smtp-inbound-2.mimecast.com eu-smtp-inbound-1.mimecast.com eu-smtp-inbound-2.mimecast.com	AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited
10	3600s	eu-smtp-inbound-2.mimecast.com	195.130.217.201 195.130.217.201 195.130.217.211 195.130.217.211 195.130.217.241 195.130.217.241 91.220.42.201 91.220.42.201 91.220.42.211 91.220.42.211 91.220.42.241 91.220.42.241	eu-smtp-inbound-2.mimecast.com eu-smtp-inbound-1.mimecast.com eu-smtp-inbound-1.mimecast.com eu-smtp-inbound-2.mimecast.com eu-smtp-inbound-2.mimecast.com eu-smtp-inbound-1.mimecast.com eu-smtp-inbound-1.mimecast.com eu-smtp-inbound-2.mimecast.com eu-smtp-inbound-1.mimecast.com eu-smtp-inbound-2.mimecast.com eu-smtp-inbound-1.mimecast.com eu-smtp-inbound-2.mimecast.com	AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited AS42427 Mimecast Services Limited

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	open-top.dk → 217.116.232.224
🔶 Autoconfig	open-top.dk → 217.116.232.224

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 8049ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	autodiscover.gigahost.dk

📝 TXT Records

📝

No TXT records found

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.open-top.dk	open-top.dk

🔗 TLSA / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC157ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2026071601
Primary NS (MNAME)	ns1.gigahost.dk
Responsible (RNAME)	hostmaster@open-top.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

54ms

A

54ms

MX

49ms

AAAA

50ms

TXT

281ms

CAA

52ms

HTTPS

56ms

TLSA

8360ms

SOA

0ms

MTA-STS

477ms

DNSSEC

157ms

SRV

8049ms

Total

17329ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-04 07:59:48	1434ms	5 NS 1 A 2 MX	🔓 Insecure	View
2026-08-27 06:55:35	1344ms	5 NS 1 A 2 MX	🔓 Insecure	View
2026-08-21 01:12:37	2266ms	5 NS 1 A 2 MX	🔓 Insecure	View
2026-08-14 02:13:19	3698ms	5 NS 1 A 2 MX	🔓 Insecure	View
2026-08-07 00:47:03	1880ms	5 NS 1 A 2 MX	🔓 Insecure	View
2026-07-23 04:11:26	10531ms	5 NS 1 A 2 MX	🔓 Insecure	View
2026-07-17 06:16:04	17329ms	5 NS 1 A 2 MX	🔓 Insecure	View
2026-07-09 04:22:12	2680ms	5 NS 1 A 2 MX	🔓 Insecure	View
2026-07-05 00:28:01	7281ms	5 NS 1 A 2 MX	🔓 Insecure	View
2026-06-25 11:05:25	1502ms	5 NS 1 A 2 MX	🔓 Insecure	View
2026-06-17 11:37:33	1101ms	5 NS 1 A 2 MX	🔓 Insecure	View