optoma.dk

📜 Historical scan 2026-09-21 20:32:51 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

optoma.dk is a .dk domain served by 2 nameservers (lou.ns.cloudflare.com, serena.ns.cloudflare.com). It was registered on 26 July 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.27.218 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by optoma-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 170ms

Nameserver	IP addresses	PTR	ASN / ISP
lou.ns.cloudflare.com	108.162.193.199 172.64.33.199 173.245.59.199 2606:4700:58::adf5:3bc7 2803:f800:50::6ca2:c1c7 2a06:98c1:50::ac40:21c7	lou.ns.cloudflare.com lou.ns.cloudflare.com lou.ns.cloudflare.com lou.ns.cloudflare.com lou.ns.cloudflare.com lou.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
serena.ns.cloudflare.com	108.162.192.220 172.64.32.220 173.245.58.220 2606:4700:50::adf5:3adc 2803:f800:50::6ca2:c0dc 2a06:98c1:50::ac40:20dc	serena.ns.cloudflare.com serena.ns.cloudflare.com serena.ns.cloudflare.com serena.ns.cloudflare.com serena.ns.cloudflare.com serena.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 170ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.27.218	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.169.198	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 181ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	optoma-dk.mail.protection.outlook.com	2a01:111:f403:cc09:: 2a01:111:f403:cc09::1 2a01:111:f403:cc1a::8 2a01:111:f403:cc1f::4 52.101.124.117 52.101.137.0 52.101.137.2 52.101.157.80	mail-sg2pr03cu00500.inbound.protection.outlook.com — mail-tydpr03cu00100.inbound.protection.outlook.com mail-os8pr02cu00104.inbound.protection.outlook.com mail-tydpr03cu00105.inbound.protection.outlook.com mail-sg2pr03cu00500.inbound.protection.outlook.com — mail-os8pr02cu00100.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 143ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:1bda	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:a9c6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 150ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.27.218,172.67.169.198 ech=AEX+DQBBTAAgACDCfQzWIYJDF26PtytUhljzE12nFEY67EaItsFErTMIYQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:1bda,2606:4700:3036::ac43:a9c6

📝 TXT Records#

2 records 314ms

TXT Record
MS=ms21858472
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.optoma.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;ruf=mailto:mis@optoma.co.uk rua=mailto:ee6867b224ee4d339e665ab1498da7b0@dmarc-reports.cloudflare.net

📬 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 2026-10-19 19:43:55

www	104.21.27.218 172.67.169.198 2606:4700:3030::6815:1bda 2606:4700:3036::ac43:a9c6 (AS13335) (address records, no CNAME)
www vs bare domain	Same network optoma.dk: 104.21.27.218 172.67.169.198 2606:4700:3030::6815:1bda 2606:4700:3036::ac43:a9c6 (AS13335) www.optoma.dk: 104.21.27.218 172.67.169.198 2606:4700:3030::6815:1bda 2606:4700:3036::ac43:a9c6 (AS13335)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-optoma-dk._domainkey.optoma365.onmicrosoft.com	RSA · ~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: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.optoma.dk	pwjlBxwUnnsDUlQBoRShfIqz4s1hD6TwTd8krVQ2TxE
TXT	_acme-challenge.optoma.dk	ztoQg7tGpt-_fQkAtPGba59y4Qj555SM6eZkI4CSI-0

🔗 TLSA / DANE#

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

🔐 DNSSEC#

209ms

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	2415496480
Primary NS (MNAME)	lou.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-19 20:08:12

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2012-07-26
Expires	2027-07-31 (283d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

170ms

181ms

AAAA

143ms

TXT

314ms

CAA

166ms

HTTPS

150ms

TLSA

659ms

SOA

0ms

MTA-STS

149ms

DNSSEC

209ms

SRV

280ms

Total

1859ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-19 19:43:55	2995ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-18 18:04:21	2999ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-17 17:20:47	2955ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-16 15:58:43	2940ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-15 14:02:02	1362ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-14 13:36:06	939ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-13 12:56:20	2388ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-12 12:09:34	3644ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-11 11:14:20	8774ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-10 08:32:04	2792ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-08 16:41:42	932ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-07 16:35:18	3812ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-06 15:33:14	1314ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-05 15:31:12	5987ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-04 15:28:08	1962ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-03 15:25:08	2315ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-02 15:20:41	1072ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-01 15:16:37	1357ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 15:08:24	4507ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-29 14:56:13	1168ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-28 14:45:27	847ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-27 14:35:50	1789ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-26 14:18:25	1555ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-25 14:05:11	1983ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 13:55:27	1037ms	2 NS 2 A 1 MX	🔓 Insecure