opstreng.dk

Records from scan: 2026-07-02 09:50:15 · 2525ms total · last checked 2026-10-17 12:13 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

opstreng.dk is a .dk domain served by 3 nameservers (ns.second-ns.com, ns1.your-server.de, ns3.second-ns.de). It was registered on 21 May 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 78.46.220.197 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by www577.your-server.de. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 71ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.second-ns.com	213.239.204.242 2a01:4f8:0:a101::b:1	ns.second-ns.com ns.second-ns.com	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
ns1.your-server.de	213.133.100.102 2a01:4f8:0:1::5ddc:1	ns1.your-server.de ns1.your-server.de	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
ns3.second-ns.de	193.47.99.4 2001:67c:192c::add:b3	ns3.second-ns.de ns3.second-ns.de	AS12337 noris network AG AS12337 noris network AG

🌍 A Records#

1 records 67ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
78.46.220.197	60s	www577.your-server.de	AS24940	Hetzner Online GmbH	78.46.0.0/15	🇩🇪 Germany	Nuremberg

📧 MX Records#

1 records 68ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	60s	www577.your-server.de	2a01:4f8:d0a:43e4::2 78.46.220.197	www577.your-server.de www577.your-server.de	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔶 Autoconfig	mail.your-server.de → 78.46.5.205

🔷 AAAA Records (IPv6)#

1 records 73ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a01:4f8:d0a:43e4::2	60s	www577.your-server.de	AS24940	Hetzner Online GmbH	2a01:4f8:0:0:0:0:0:0/31	🇩🇪 Germany	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 121ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	100	443	mail.your-server.de
_imaps._tcp	0	100	993	mail.your-server.de

📝 TXT Records#

1 records 259ms

TXT Record
v=spf1 a mx -all

✉️ SPF#

Policy	Record (opstreng.dk)
-all (hard fail)	v=spf1 a mx -all

📨 DMARC#

Policy	Record (_dmarc.opstreng.dk)
p=reject	v=DMARC1;p=reject;sp=none;pct=100;rua=mailto:reports@opstreng.dk;ruf=mailto:reports@opstreng.dk;adkim=r;aspf=r;

📬 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

🧩 Web & zone#

checked 2026-10-10 03:06:19

www	78.46.220.197 2a01:4f8:d0a:43e4::2 (AS24940) (address records, no CNAME)
www vs bare domain	Same network opstreng.dk: 78.46.220.197 2a01:4f8:d0a:43e4::2 (AS24940) www.opstreng.dk: 78.46.220.197 2a01:4f8:d0a:43e4::2 (AS24940)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

1311ms

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

🏷️ SOA#

69ms

Field	Value
Serial	2026042900
Primary NS (MNAME)	ns1.your-server.de
Responsible (RNAME)	postmaster@your-server.de
Refresh	86400s
Retry	10800s
Expire	3600000s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-13 09:37:37

Field	Value
Registrar	CURANET A/S
Registered	2023-05-21
Expires	2027-05-20 (214d)

🔗 Same registrant#

6 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
123ms.dk	CURANET A/S
30202012.dk	CURANET A/S
appservice.dk	CURANET A/S
nemkassesystem.dk	CURANET A/S
zendur.dk	CURANET A/S
zub.dk	CURANET A/S

📋 WHOIS#

⏱️ Lookup Timing#

71ms

67ms

68ms

AAAA

73ms

TXT

259ms

CAA

62ms

HTTPS

80ms

TLSA

206ms

SOA

69ms

MTA-STS

98ms

DNSSEC

1311ms

SRV

121ms

Total

2525ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-07-02 09:50:15 shown	2525ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-26 04:25:31	1136ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-23 03:46:08	1170ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 00:38:15	1006ms	3 NS 1 A 1 MX	🔓 Insecure