optera.dk

📜 Historical scan 2026-08-19 07:12:48 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

optera.dk is a .dk domain served by 2 nameservers (ram.ns.cloudflare.com, simone.ns.cloudflare.com). It was registered on 13 April 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.13.78 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by optera-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no 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 48ms

Nameserver	IP addresses	PTR	ASN / ISP
ram.ns.cloudflare.com	108.162.193.225 172.64.33.225 173.245.59.225 2606:4700:58::adf5:3be1 2803:f800:50::6ca2:c1e1 2a06:98c1:50::ac40:21e1	ram.ns.cloudflare.com ram.ns.cloudflare.com ram.ns.cloudflare.com ram.ns.cloudflare.com ram.ns.cloudflare.com ram.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
simone.ns.cloudflare.com	108.162.194.26 162.159.38.26 172.64.34.26 2606:4700:50::a29f:261a 2803:f800:50::6ca2:c21a 2a06:98c1:50::ac40:221a	simone.ns.cloudflare.com simone.ns.cloudflare.com simone.ns.cloudflare.com simone.ns.cloudflare.com simone.ns.cloudflare.com simone.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.13.78	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.198.208	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	optera-dk.mail.protection.outlook.com	2a01:111:f403:c967:: 2a01:111:f403:c967::2 2a01:111:f403:c967::4 2a01:111:f403:c967::6 52.101.209.2 52.101.209.4 52.101.209.6 52.101.209.74	mail-cpcp307cu00400.inbound.protection.outlook.com mail-cpap307cu00402.inbound.protection.outlook.com mail-cpap307cu00204.inbound.protection.outlook.com mail-cpcp307cu00206.inbound.protection.outlook.com mail-cpap307cu00402.inbound.protection.outlook.com mail-cpap307cu00204.inbound.protection.outlook.com mail-cpcp307cu00206.inbound.protection.outlook.com mail-cpcp307cu00402.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 → 40.104.116.56

🔷 AAAA Records (IPv6)#

2 records 40ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:c6d0	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:d4e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 63ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.13.78,172.67.198.208 ech=AEX+DQBBZgAgACDWI9M3+AfioMmw1ST8gOxxIErvrwlTa9h6OHUzJuUjGQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:c6d0,2606:4700:3035::6815:d4e

📝 TXT Records#

3 records 197ms

TXT Record
google-site-verification=iTmGfes0g_OQLem3gJ1BtPHM5IxAWZUuSgSQZwksLI4
MS=ms32346558
v=spf1 include:spf.protection.outlook.com include:spf-eu.emailsignatures365.com -all

✉️ SPF#

Policy	Record (optera.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf-eu.emailsignatures365.com -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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-07 18:00:52

www	NXDOMAIN
www vs bare domain	www does not resolve optera.dk: 104.21.13.78 172.67.198.208 2606:4700:3030::ac43:c6d0 2606:4700:3035::6815:d4e (AS13335) www.optera.dk: no address (all like this)
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#

89ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2412530810
Primary NS (MNAME)	ram.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-17 20:53:47

Field	Value
Registrar	CURANET A/S
Registered	2026-04-13
Expires	2027-04-12 (176d)

🔗 Same registrant#

53 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
aktivmassage.dk	CURANET A/S
ankers-fuger.dk	CURANET A/S
ankerskrudtogkugler.dk	CURANET A/S
bellaluna-lisseleje.dk	CURANET A/S
betonrocko.dk	CURANET A/S
bilboost.dk	CURANET A/S
bondestuen-aggersund.dk	CURANET A/S
booki.dk	CURANET A/S
byensblikkenslager.dk	CURANET A/S
byghyg.dk	CURANET A/S
cafebestfriends.dk	CURANET A/S
dengodesmag-farsoe.dk	CURANET A/S
dinpizzabar.dk	CURANET A/S
dortheshundesaloniviborg.dk	CURANET A/S
dronninglundte.dk	Punktum dk A/S (direct)
fritilbud.dk	CURANET A/S
frk-kold.dk	CURANET A/S
googlemate.dk	CURANET A/S
handbjergvandpolering.dk	CURANET A/S
heasgulv.dk	CURANET A/S
htkoekorenoering.dk	CURANET A/S
indemiljo.dk	CURANET A/S
j-ebbesen.dk	CURANET A/S
j-ron.dk	CURANET A/S
jshbiler.dk	CURANET A/S
juletraessalg-aarhus.dk	CURANET A/S
kasper-ent.dk	CURANET A/S
klaruptoemrer.dk	CURANET A/S
ktnbyg.dk	CURANET A/S
leifssandwich.dk	CURANET A/S
lejretomrer.dk	CURANET A/S
lindegaardens-auto.dk	CURANET A/S
mhejendomsservice.dk	CURANET A/S
nhbservice.dk	CURANET A/S
nordjyllandstagmaler.dk	CURANET A/S
onlinegrus.dk	CURANET A/S
osterhurup-snedker.dk	CURANET A/S
robile.dk	CURANET A/S
servicedannyjensen.dk	CURANET A/S
sgamontage.dk	CURANET A/S
siite.dk	CURANET A/S
siitedev2.dk	CURANET A/S
siitedev3.dk	CURANET A/S
siitehost.dk	CURANET A/S
silkeborgfoodtogo.dk	CURANET A/S
skovstoemrer.dk	CURANET A/S
skriver-byggeservice.dk	CURANET A/S
storvorde-slushiceudlejning.dk	CURANET A/S
storvordefestudlejning.dk	CURANET A/S
tempdomain-siite.dk	CURANET A/S
topanlæg.dk	CURANET A/S
upnorth27.dk	CURANET A/S
yokosushi.dk	CURANET A/S

📋 WHOIS#

⏱️ Lookup Timing#

48ms

36ms

38ms

AAAA

40ms

TXT

197ms

CAA

74ms

HTTPS

63ms

TLSA

750ms

SOA

0ms

MTA-STS

81ms

DNSSEC

89ms

SRV

80ms

Total

3271ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 16:15:16	1677ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 01:37:27	1004ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-19 07:12:48 shown	3271ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-25 04:55:57	9542ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-30 03:51:20	791ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-27 11:51:18	938ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 12:54:34	2412ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 06:45:40	808ms	2 NS 1 A 1 MX	🔒 Secure