Privacy Policy &
Zero-Telemetry Guarantee

When you access StructLogic reference matrices, joist span tables, or calculation modules, the entire static code bundle is loaded into your browser cache. All numerical evaluations—such as Euler-Bernoulli fourth-order elastic curve integrations, ACI 318 Whitney stress block iterations, and Rankine lateral pressure coefficient calculations—are computed locally on your computer's CPU via JavaScript.

No design loads, spans, concrete strengths ($f'_c$), lumber species selections, or rebar configurations are ever sent back to our servers or any third-party infrastructure.

StructLogic does not store or read cookies for marketing, tracking, behavioral analytics, or user profiling. We intentionally avoid:

• No Google Analytics, Adobe Analytics, or Mixpanel
• No Meta (Facebook) Pixel, LinkedIn Insight, or advertising beacons
• No session recording or mouse-movement trackers (e.g., Hotjar, FullStory)
• No cross-site tracking or advertising identity federation

Like all static web servers connected to the global internet, edge delivery servers (e.g., content delivery network nodes) generate automated, temporary technical access logs. These logs record standard network metadata:

• Internet Protocol (IP) address of the requesting client
• HTTP request method and requested static file path (e.g., GET /icon.svg)
• HTTP response status code (e.g., 200, 304)
• Browser User-Agent header (for format negotiation)
• Timestamp of request

These server logs are utilized solely for security diagnostics, DDoS traffic mitigation, and edge routing integrity. They are retained on a rolling ephemeral basis (typically 14 to 30 days) and are never merged with personal identities or structural project files.

To enhance engineering usability, StructLogic may offer client-side configuration toggles (such as Imperial vs. Metric SI units or dark theme preferences). If toggled, these settings are stored exclusively in your browser's locallocalStorage. They remain solely on your device and can be cleared at any time through your browser settings.

Because StructLogic does not harvest, process, or sell personal data:

• GDPR (Regulation (EU) 2016/679): We implement Privacy by Design and by Default (Article 25). No personal data processing occurs that would require user consent banners or data subject access requests.
• CCPA / CPRA (California Consumer Privacy Act): We do not sell or share consumer personal information. There is no personal data collected to opt out of or delete.