Local browser storage
- Theme choice can be stored in local storage so dark mode stays consistent.
- Saved scenarios may be stored locally in the browser when you use the scenario tools.
- The site search can load a local search index so search feels fast without needing a server round-trip.
Optional sync features
If you use scenario sync, data may be sent through the configured Netlify function route for that feature. If you never use sync, that pathway is not part of your visit.
Analytics and measurement
- The shared site code records a lightweight local event buffer first, so site operators can test measurement without sending third-party data immediately.
- Third-party forwarding only starts if analytics is explicitly enabled and a provider such as Plausible or GA4 is configured.
- The site should prefer lightweight measurement over intrusive profiling.
- Search Console is used for search performance and indexing visibility rather than behavioural tracking.
Advertising and privacy
If display ads are introduced, the intention is to keep them outside the decision-critical calculator areas. See the advertising policy for where ads may and may not appear.
Related standards
See the editorial policy and methodology page for how content quality, review and source handling work across the site.