seerup-optics.dk

📜 Historical scan 2026-09-23 22:52:07 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

seerup-optics.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 26 June 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 78.46.3.99 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by seerupoptics-dk01e.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 47ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
78.46.3.99	3600s	dedi899.your-server.de	AS24940	Hetzner Online GmbH	78.46.0.0/15	🇩🇪 Germany	Nuremberg

📧 MX Records#

1 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	seerupoptics-dk01e.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::a 2a01:111:f403:ca09::22 2a01:111:f403:ca48::a 52.101.103.162 52.101.103.39 52.101.68.12 52.101.68.29	mail-dbapr03cu00100.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-am7pr02cu00302.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr03cu00202.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-dbapr03cu00105.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

🔷 AAAA Records (IPv6)#

1 records 40ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a01:4f8:d0a:329c::2	3600s	dedi899.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

📝 TXT Records#

2 records 164ms

TXT Record
google-site-verification=_WJRlUPv9zpdSLn8jHswrbBY4bQ9JEmXqBUONGYpxOA
v=spf1 include:spf.protection.outlook.com include:mailgun.org -all

✉️ SPF#

Policy	Record (seerup-optics.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:mailgun.org -all

📨 DMARC#

Policy	Record (_dmarc.seerup-optics.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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#

latest probe, not this scan · checked 2026-10-09 06:25:49

www CNAME	seerup-optics.dk (all on seerup-optics.dk) → 78.46.3.99 2a01:4f8:d0a:329c::2 (AS24940)
www vs bare domain	Same network seerup-optics.dk: 78.46.3.99 2a01:4f8:d0a:329c::2 (AS24940) www.seerup-optics.dk: 78.46.3.99 2a01:4f8:d0a:329c::2 (AS24940)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
s1	—	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 6/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

72ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026083001
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-01 01:28:30

Field	Value
Registrar	ONE.COM A/S
Registered	2012-06-26
Expires	2027-06-30 (256d)

📋 WHOIS#

⏱️ Lookup Timing#

47ms

43ms

42ms

AAAA

40ms

TXT

164ms

CAA

38ms

HTTPS

45ms

TLSA

595ms

SOA

0ms

MTA-STS

55ms

DNSSEC

72ms

SRV

62ms

Total

1124ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 00:51:54	1314ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 22:52:07 shown	1124ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-31 02:55:53	2667ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-28 09:19:50	2969ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-01 15:06:14	882ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-14 22:07:19	1996ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-02 12:10:14	2250ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 06:36:48	907ms	2 NS 1 A 1 MX	🔒 Secure