CONTINUOUS INTERNET TELEMETRY24H DRIFT2,089 material changesacross 1,895 domains · +130 vs yesterdayDNS DRIFT22 domains changed DNS providertop destination cloudflare.com · +3 vs yesterdayEMAIL DRIFT8 domains switched email providertop destination google.com · +5 vs yesterdayNOW3,477 curated domains not answeringlast probe, steadyERRORS8,528 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED2,335 throttled or blocked our scanner429 rate-limit / 403 bot-block24H DRIFT2,089 material changesacross 1,895 domains · +130 vs yesterdayDNS DRIFT22 domains changed DNS providertop destination cloudflare.com · +3 vs yesterdayEMAIL DRIFT8 domains switched email providertop destination google.com · +5 vs yesterdayNOW3,477 curated domains not answeringlast probe, steadyERRORS8,528 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED2,335 throttled or blocked our scanner429 rate-limit / 403 bot-block

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

  • 104.26.15.224
  • 104.26.14.224
  • 172.67.72.85

AAAA 3

  • 2606:4700:20::681a:ee0
  • 2606:4700:20::ac43:4855
  • 2606:4700:20::681a:fe0

MX 5

  • 10alt4.aspmx.l.google.com
  • 5alt2.aspmx.l.google.com
  • 10alt3.aspmx.l.google.com
  • 5alt1.aspmx.l.google.com
  • 1aspmx.l.google.com

TXT 11

  • google-site-verification=_RUwdW7VMzMZijQGeaO3zIkuiPMhzXgf6TYj9pSfITw
  • v=spf1 include:_spf.google.com include:mailgun.org -all
  • linkedin-site-verification=68642795-a0c7-426d-bb71-d3e359c0a1e4
  • 43c363f5-55bc-4a78-ad2a-1d2f79225085
  • google-site-verification=5QC19TB-PMA8dMlHDllsRRmI-7MYaXDxNcB8vXzshFc
  • _globalsign-domain-verification=AfIUsqMo_BNmwiXqouAXz9KbkWiI-prm1P0UCLvXRO
  • google-site-verification=E1ORT1srY97eSSmZOBedZqyVzeJduh1Jll_ehu3hn28
  • v=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.com
  • stan.ns.cloudflare.com

SOA 1

  • nina.ns.cloudflare.com dns.cloudflare.com

CAA 10

  • issue digicert.com; cansignhttpexchanges=yes
  • issuewild digicert.com; cansignhttpexchanges=yes
  • issuewild pki.goog; cansignhttpexchanges=yes
  • issue ssl.com
  • issuewild comodoca.com
  • issue letsencrypt.org
  • issuewild letsencrypt.org
  • issuewild ssl.com
  • issue pki.goog; cansignhttpexchanges=yes
  • issue 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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for opencv.org. It updates itself. It attests a signed observation - not that the site is safe.

DomainDrift signed-observation badge for opencv.org <a href="https://domaindrift.io/t/opencv.org"> <img src="https://domaindrift.io/badge/opencv.org.svg" width="300" height="64" alt="DomainDrift signed observations for opencv.org"> </a>

Ed25519 Receipt

Receipt ID
4372917b-e9dd-421f-8f5b-9b2f4ea8b122
Output Hash
8647dcdacc42f1f5adb26cb298e323baf0128a0aba2c3fb8563e38b3b61bd48d
Signature
ed25519:1d8e1d63e505c1dc281fc0738a591f55b07049b7acf39b310e671dd1cf2bebf56fa3972930d68677dc3b3ac9380ab0c7f8aeda33e65a4735f995c3511dc67800
Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent
(genesis)
Plane
fast
Verify this in your browser