Cookies, browser storage and analytics
What SHVL saves in your browser, how we measure site use and how to change your analytics choice.
SHVL saves your theme preference in your browser. Public pages use Google Analytics 4, Ahrefs Web Analytics and SHVL usage events to measure visits and actions such as opening a demo or starting checkout. You can change your Google Analytics choice below.
Browser storage on public pages
The public site stores a small amount of state in the browser so the interface behaves properly.
- Theme preference is stored locally as
shvl-theme. - If you allow analytics,
shvl-first-touch-v1stores the first landing path and a coarse source category on this browser. If you later create a recurring workspace, SHVL stores that source once against the workspace so aggregate conversion can be measured. If analytics is not allowed, the source is recorded as unknown. It does not store a referrer URL, email address, CSV content or invoice value. - Free tool pages use local sign-in markers after login so they can open without calling Supabase on every tool page:
shvl_signed_in,shvl_auth_seen_at,shvl_user_id, andshvl_email_domain. - This is browser storage rather than a marketing cookie.
- It is there to keep the interface consistent between visits.
Analytics in use
Public pages use SHVL events for actions such as opening a demo or starting checkout. Analytics services include Plausible, Google Analytics 4 (measurement ID G-KQ4M2NMLQD), Ahrefs Web Analytics and Cloudflare Web Analytics.
- Events record site and tool use, not uploaded file contents.
- Signed-in free-tool events may include tool name, page path, Supabase account id, and email domain so usage can be tied back to an account.
- GA4 loads only after you allow it, with anonymised IP settings, Google signals disabled and ad personalisation signals disabled. If you disable it later, SHVL stops GA4 events and removes GA cookies that this browser allows us to access. Advertising storage remains denied.
- Workflow and signed-in pages may also keep normal auth or operational state where required.
Control Google Analytics on this browser.
SHVL remembers this choice in local browser storage. Disabling analytics does not affect the calculator, chase-pack preview, or signed-in product.
Cookies used for sign-in and security
Hosting, sign-in and security providers may set necessary cookies or security tokens when you use SHVL.
- Signed-in routes can require normal auth or session behaviour.
- Anti-abuse and security tooling may use technical cookies or tokens if needed.
- Those controls are different from cross-site advertising profiles.
Google advertising features are disabled.
Google signals and ad personalisation are disabled. Advertising storage remains denied, even if you allow analytics. Necessary sign-in and security cookies may still be used.
Changes to analytics
We will update this page if we change the analytics services or browser storage SHVL uses.
Questions about your data?
Contact hello@shvl.app.
Related pages: Privacy, Data handling, Terms, and Accessibility.