Last updated: October 14, 2026
This Privacy Policy describes how Stat-Tools ("we", "us", or "our") collects, uses, and shares information when you use dackohn.com/stats.
If you create a free account, we collect your name and email address. Your password is hashed using bcrypt and never stored in plain text.
When you use our tools without logging in, the data you enter is sent to our server solely to perform the calculation and is not stored. If you are logged in and click "Save result", the input and output of that calculation are saved to your account history.
Our web server automatically logs IP addresses, browser type, referring page, and pages visited. These logs are used for security monitoring and are retained for 30 days.
We store your authentication token in localStorage (not a cookie) to keep you logged in. This site uses cookies and similar technologies from third parties: Google AdSense, to show and measure ads; Google Analytics, to count visits and see which pages are used; and Microsoft Clarity, to see how pages are used. These cookies are set by Google, not by us, as described in How Google uses information from sites that use its services. We also run a small first-party page counter that records the page viewed and the referring site, without cookies and without storing your IP address.
Google Fonts: We load fonts from fonts.googleapis.com. Google may log this request per their privacy policy.
Chart.js (CDN): Loaded from cdn.jsdelivr.net for interactive charts. jsDelivr may log your IP.
Advertising: We display ads through Google AdSense. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website and other websites. Google's use of advertising cookies enables it and its partners to serve ads to you based on your visits to this and/or other sites on the internet. You can opt out of personalised advertising in Google Ad Settings, or opt out of some third-party vendors' use of cookies for personalised advertising at www.aboutads.info.
Microsoft Clarity: We use Microsoft Clarity to see how visitors use the site, through heatmaps and session replays that show clicks, scrolling and mouse movement. Clarity masks text you type into forms and does not tell us who you are. It uses cookies and stores this data on Microsoft servers; see the Microsoft Privacy Statement.
Analytics: We use Google Analytics to understand how the site is used. Google Analytics uses cookies to collect information such as pages visited and approximate location; it does not tell us who you are. You can opt out by installing the Google Analytics Opt-out Browser Add-on.
Account data and saved calculations are retained until you delete your account. You can delete your account (and all associated data) at any time from your dashboard settings. Server access logs are purged after 30 days.
All traffic is encrypted with TLS (HTTPS). Passwords are hashed with bcrypt. Access tokens use signed JWTs. Our server applies security headers (HSTS, X-Frame-Options, CSP) on every response. We do not sell or share your personal data with third parties for marketing purposes.
You have the right to:
To exercise these rights, log in and use the dashboard settings, or contact us at [email protected].
Stat-Tools is not directed at children under 13. We do not knowingly collect personal information from children under 13.
We may update this policy from time to time. Changes will be posted on this page with an updated date. Continued use of the site after changes constitutes acceptance of the updated policy.
Questions about this policy? Email [email protected].