dualoptik.com
Observed Jul 25, 2026, 16:25 UTC (7d ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation - watch it for 5-minute checks.
Guarded by a firewall
Runs onCloudflare
Secured byLet's Encrypt
Also usesGoogle Search Console
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat dualoptik.com actually stands on - every host below is a signed observation
dualoptik.com
A / AAAA
23.227.38.65
Cloudflareserves the site
NS
ns6.kasserver.comns5.kasserver.com
kasserver.comanswers its DNS
MX
w01f6b1d.kasserver.com
kasserver.comreceives its email
TLS
dualoptik.com
Let's Encryptissued its certificate
DNS Records
A 1
23.227.38.65
MX 1
10w01f6b1d.kasserver.com
TXT 4
v=spf1 a mx include:spf.kasserver.com ~allgoogle-site-verification=VUTIMyc2PYnxS9oZW2j2cVZYHXFoBDFW7zitIt7A0bIbrevo-code:3f77cdbe397762debf9dea602f8d03bev=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com
NS 2
ns6.kasserver.comns5.kasserver.com
SOA 1
ns5.kasserver.com hostmaster.kasserver.com
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
dualoptik.com |
C=US, O=Let's Encrypt, CN=YE1 | Sun, 06 Sep 2026 05:54:05 +0000 |
YE1 |
C=US, O=ISRG, CN=Root YE | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YE |
C=US, O=Internet Security Research Group, CN=ISRG Root X2 | Thu, 02 Sep 2032 23:59:59 +0000 |
ISRG Root X2 |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +0000 |
Subdomains (0)
None observed.
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_c2d0b13594e622b7- Output Hash
315a49c3f1b9e6ba96c8ad0dbc3534c04d4653868b27018fb2e192347a8a698a- Signature
ed25519:7fd594b833e61c5d2965a75aec5269c05d801bc2ad2fcb42f2524ae7d5370f70d9ebb1771f016ce1f499e1006a5fdcf81b1b627733ff24c501a92fdb85565407- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast