opencv.org
Observed 2026-07-14T13:57:17.733Z (1d ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byGoogle Workspace
Registered withGoDaddy.com, LLC
Also usesGoogle Search Console
IPv6 · 5 subdomains · 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
104.26.15.224104.26.14.224172.67.72.852606:4700:20::681a:ee0+2 more
Cloudflareserves the site
NS
nina.ns.cloudflare.comstan.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
alt4.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt1.aspmx.l.google.com+1 more
Google Workspacereceives its email
HTTPS probe
ok
Responding normally (2xx) 200 OK
HTTP status200
Servercloudflare
TLS protocolHTTP/3
TLS issuernot observed
Behind Cloudflareyes
Response time37 ms
DNS resolutionNOERROR
Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 3
104.26.15.224104.26.14.224172.67.72.85
AAAA 3
2606:4700:20::681a:ee02606:4700:20::ac43:48552606:4700:20::681a:fe0
MX 5
10alt4.aspmx.l.google.com5alt2.aspmx.l.google.com10alt3.aspmx.l.google.com5alt1.aspmx.l.google.com1aspmx.l.google.com
TXT 11
google-site-verification=_RUwdW7VMzMZijQGeaO3zIkuiPMhzXgf6TYj9pSfITwv=spf1 include:_spf.google.com include:mailgun.org -alllinkedin-site-verification=68642795-a0c7-426d-bb71-d3e359c0a1e443c363f5-55bc-4a78-ad2a-1d2f79225085google-site-verification=5QC19TB-PMA8dMlHDllsRRmI-7MYaXDxNcB8vXzshFc_globalsign-domain-verification=AfIUsqMo_BNmwiXqouAXz9KbkWiI-prm1P0UCLvXROgoogle-site-verification=E1ORT1srY97eSSmZOBedZqyVzeJduh1Jll_ehu3hn28v=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=DKIM1; (detected)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 digicert.com; cansignhttpexchanges=yesissuewild digicert.com; cansignhttpexchanges=yesissuewild pki.goog; cansignhttpexchanges=yesissue ssl.comissuewild comodoca.comissue letsencrypt.orgissuewild letsencrypt.orgissuewild ssl.comissue pki.goog; cansignhttpexchanges=yesissue comodoca.com
TLS Certificates (0)
None.
Subdomains (5)
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
4372917b-e9dd-421f-8f5b-9b2f4ea8b122- Output Hash
8647dcdacc42f1f5adb26cb298e323baf0128a0aba2c3fb8563e38b3b61bd48d- Signature
ed25519:1d8e1d63e505c1dc281fc0738a591f55b07049b7acf39b310e671dd1cf2bebf56fa3972930d68677dc3b3ac9380ab0c7f8aeda33e65a4735f995c3511dc67800- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast