LEGAL

Privacy Policy

Last updated: May 2026

The short version

We use your IP address to show you the results on screen. We don't sell it, we don't build a profile, and we don't keep it after your session. Affiliate link clicks are logged as a one-way hash of your IP (not the raw IP). That's the gist.

What we collect

IP address
Used to run diagnostics and populate the reveal dashboard. Passed to our geolocation provider (ipinfo.io) to determine city, ISP, and ASN. Not stored beyond the request.
Tool inputs
Hostnames, domains, or IP addresses you type into ping, DNS, traceroute, WHOIS, or IP lookup. Used only to run the requested query. Not logged.
Affiliate clicks
When you click a partner link, we record which offer was clicked, the referring page, and a daily-rotating SHA-256 hash of your IP (never the raw IP). This lets us count clicks and detect abuse without storing personally identifiable data.
Server logs
Standard web server access logs (IP, timestamp, URL, user agent) retained for up to 30 days for security and debugging, then deleted.

Third-party services

  • ipinfo.io — geolocation and ASN data. Your IP is sent to their API to resolve location and ISP. See ipinfo.io/privacy.
  • Bootstrap CDN (jsDelivr) — CSS and JS served from jsDelivr. Your browser connects to their CDN. See jsDelivr privacy policy.
  • Affiliate partners — if you click a partner link, you are redirected to a third-party site with their own privacy policy.

Cookies

We use localStorage (not a cookie) to remember your light/dark mode preference. No tracking cookies. No ad network cookies. No cross-site tracking.

Data selling

We do not sell, rent, or trade personal data. Ever.

Contact

Privacy questions: contact@check.systems