Privacy: Local Calculation

Summary

The tools hold calculation values in browser memory for the current page. Resetting the tool or navigating away clears that page state. Printed output is created only when the user explicitly clicks Print.

What the tools process

Tool Input held in page memory Purpose

Cultural portrait Birth date, optional time, selected city, time basis, day boundary. Resolve civil time, calendar context, Four Pillars, and boundary variants.

Meihua calculator Local date-time or two positive integers, optional hour branch. Derive primary, nuclear, changed, moving-line, and Body/Use structure.

Private prompt No field exists; the question is not read or collected. The user can hold a question privately without submitting it.

These values are not placed in a URL, account, database, analytics event, error log, or generated history. The site does not ask for a name or email to generate a result.

Storage and network behavior

Browser memory

Current page only

Calculation state exists in the current document. “Reset” clears the form and rendered result in the Meihua tool; navigating away discards the page state.

Site storage

No calculation history

The site does not write to localStorage, sessionStorage, IndexedDB, or site-managed cookies. No accounts or cloud save exist.

Network

No calculation upload

The browser calculators do not POST inputs or result content. Static assets load from the site; no third-party AI, ad, geolocation, or geocoding script is part of the tools.

Output

Print is user-triggered

Print creates a local browser print/PDF operation. The site does not receive a copy of what the user prints or saves.

Advertising status

This site does not load Google AdSense or any other advertising network, and the site does not set an advertising cookie. Advertising is not part of the current public-release configuration.

If advertising is enabled after approval, this policy must be updated before any ad script is activated. The update would explain that Google and its partners may use cookies, local storage, or device identifiers to serve, limit, measure, and—where applicable—personalize ads, subject to the user’s settings and any consent required by region. Google’s partner-sites data explanation and Ad Settings provide the corresponding controls and disclosures.

Contact and corrections

For corrections, accessibility reports, or privacy questions, email support@skyatlas.me.

A message includes the sender’s email address, message content, and standard email metadata. Messages are used to review and respond, and are kept only as long as reasonably needed. Do not send birth data or other private information.

Do not place birth data, private questions, or sensitive personal information in a general correction message.

Hosting and external links

This public build is served by Cloudflare Pages at skyatlas.me. Cloudflare may process standard request metadata—such as IP address, requested URL, user agent, and timestamp—for delivery, security, abuse prevention, and diagnostics. The site does not add analytics or a separate tracking service. Infrastructure processing is subject to Cloudflare’s privacy policy.

Following a link to an external source sends a request to that third-party site under its own privacy policy. The calculator itself does not need those links to calculate.

What this does not mean

It does not claim that the device, browser extension, or network operator keeps no records.
It does not promise anonymity from the hosting provider’s security logs.
It does not cover an external source site opened through a link.
It does not authorize sending birth data or private questions to the support address.
It does not turn printed results into a secure personal record.

The privacy claim is limited to the behavior of this site and its current calculation scripts: inputs remain in the page and are not uploaded or stored by the tool.