Security
The short version: we don't collect your data, so there's nothing to protect.
Your Data Never Leaves Your Browser
Every calculator on this site runs 100% client-side. The numbers you enter are processed by JavaScript in your browser. Nothing is sent to our servers. Nothing is stored in a database. Nothing is logged. When you close the tab, your data ceases to exist.
Don't trust us? Open your browser's developer tools, go to the Network tab, and run a calculation. You'll see zero outgoing requests with your data.
No Accounts, No Personal Data
We don't have accounts. We don't collect emails. We don't ask for your name. There are no passwords to hash because there are no passwords. The most personal thing on our server is the HTML we send to your browser.
Zero Tracking
This isn't just a marketing claim — it's an architectural decision. Third-party tracking scripts are attack vectors. They can be compromised, they collect data you didn't consent to, and they slow down your experience. We don't use any.
- ✓ No Google Analytics
- ✓ No Facebook Pixel
- ✓ No Hotjar, Mixpanel, Segment, or Amplitude
- ✓ No fingerprinting scripts
- ✓ No ad networks
- ✓ No cookies for calculator pages
Run your ad blocker. Check with Privacy Badger. Inspect the page source. We're clean.
HTTPS Everywhere
All traffic to this site is encrypted with TLS. HTTP requests are automatically redirected to HTTPS. Your connection to our site is encrypted even though the calculators don't transmit sensitive data — because that's just how you should build things.
Hardened Infrastructure
Even though we don't store your data, we still take server security seriously:
- ✓ Automated security patches
- ✓ Firewall rules — only necessary ports open
- ✓ Rate limiting on all endpoints
- ✓ Security headers (X-Frame-Options, X-Content-Type-Options, Referrer-Policy)
- ✓ Brute-force protection via fail2ban
Found a Vulnerability?
If you find a security issue, please report it via our contact form with the subject "Security Report." We take every report seriously and will respond within 24 hours. We appreciate responsible disclosure.