Margin Bench / Our approach
Privacy
How local calculations, in-page events, hosting requests, and external links affect your privacy.
Local calculations, not account uploads
Calculator inputs and results are processed in your browser. The site does not send them to a calculation API or ask you to connect an account. The current application does not save calculator entries in cookies, local storage, session storage, or a server-side account. Do not treat a browser tab as a saved record of your work.
In-page events and analytics
Launched pages load one third-party script: a cookieless page-view analytics tool (Rybbit) from https://rybbit.eggload.com/. It reports page views for aggregate traffic counts. Calculator inputs, form values, and results are not sent to it. No other analytics provider is installed.
The shared interface may dispatch an anonymous custom DOM event for an allowlisted action, such as selecting a tool or completing a calculation. This is an event inside the current page, not a transmitted analytics report.
The event adapter does not include raw calculator inputs, email addresses, personal data, free text, or full query strings. It does not make network requests or write cookies or other storage. This does not amount to a guarantee that all hosting infrastructure is log-free. Connecting a future event listener to an external service would require a separate privacy and consent review and an update to this explanation.
Requests to the hosting service
Loading a page still sends ordinary web requests to the host. The hosting service may log information such as IP address, requested URL, request time, user agent, and referrer for delivery, security, or operations. This page does not name a hosting provider or assert a retention period that has not been established. Avoid putting confidential information in URLs.
Email and external links
If you choose to email a configured contact address, the message and sender information pass through the email services involved. Email is not part of the local-only calculation flow. Send only what is necessary to explain the issue; do not attach customer data or confidential records.
Following an external link takes you to a service with its own privacy policy and data practices. That service receives your request and may receive referrer information according to browser policy. This site's local calculation behavior does not extend to external websites, email applications, or browser extensions.
Questions and changes
The contact page shows the configured address or clearly states that contact is unavailable in preview. If data-handling features change, this policy should be updated to describe the new behavior rather than relying on the current local-only description. No claim of regulatory certification or universal consent compliance is made here.