opencv.org
Observed Jul 22, 2026, 00:36 UTC (2d 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.
Up right now
Runs onCloudflare
Email byGoogle Workspace
Secured byGoogle Trust Services
Registered withGoDaddy.com, LLC
Also usesGoogle Search Console
IPv6 · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat opencv.org actually stands on - every host below is a signed observation
opencv.org
A / AAAA
104.26.14.224104.26.15.224172.67.72.852606:4700:20::681a:ee0+2 more
Cloudflareserves the site
NS
nina.ns.cloudflare.comstan.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comalt1.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
opencv.org
Google Trust Servicesissued its certificate
DNS Records
A 3
104.26.14.224104.26.15.224172.67.72.85
AAAA 3
2606:4700:20::681a:ee02606:4700:20::ac43:48552606:4700:20::681a:fe0
MX 5
1aspmx.l.google.com10alt3.aspmx.l.google.com10alt4.aspmx.l.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com
TXT 9
43c363f5-55bc-4a78-ad2a-1d2f79225085_globalsign-domain-verification=AfIUsqMo_BNmwiXqouAXz9KbkWiI-prm1P0UCLvXROgoogle-site-verification=5QC19TB-PMA8dMlHDllsRRmI-7MYaXDxNcB8vXzshFcgoogle-site-verification=E1ORT1srY97eSSmZOBedZqyVzeJduh1Jll_ehu3hn28google-site-verification=_RUwdW7VMzMZijQGeaO3zIkuiPMhzXgf6TYj9pSfITwlinkedin-site-verification=68642795-a0c7-426d-bb71-d3e359c0a1e4v=spf1 include:_spf.google.com include:mailgun.org -allv=DMARC1; p=reject; pct=100; fo=1; ri=3600; rua=mailto:ee351020@dmarc.mailgun.org,mailto:6b49a88f@inbox.ondmarc.com; ruf=mailto:ee351020@dmarc.mailgun.org,mailto:6b49a88f@inbox.ondmarc.com;v=STSv1; id=2025071401
NS 2
nina.ns.cloudflare.comstan.ns.cloudflare.com
SOA 1
nina.ns.cloudflare.com dns.cloudflare.com
CAA 10
issue "comodoca.com"issue "digicert.com; cansignhttpexchanges=yes"issue "letsencrypt.org"issue "pki.goog; cansignhttpexchanges=yes"issue "ssl.com"issuewild "comodoca.com"issuewild "digicert.com; cansignhttpexchanges=yes"issuewild "letsencrypt.org"issuewild "pki.goog; cansignhttpexchanges=yes"issuewild "ssl.com"
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
opencv.org |
C=US, O=Google Trust Services, CN=WE1 | Tue, 06 Oct 2026 21:03:14 +0000 |
WE1 |
C=US, O=Google Trust Services LLC, CN=GTS Root R4 | Tue, 20 Feb 2029 14:00:00 +0000 |
GTS Root R4 |
C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA | Fri, 28 Jan 2028 00:00:42 +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_85489972d52530c6- Output Hash
031e63b8f9221e31057126ceb478ea6fc590d7ea5419d1aceaf29fa7f64ee1b7- Signature
ed25519:b63edc6a6e3e35bfc0a64ec5b1edc753b238d490cacb643a4c98ebbfce12b0fb0f0aff52efef600a2e1d3e16b8b84c06ed2d00e996f80ad38c0f704b60ad3102- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast