Cookie Policy

Essential preferences

cidr-splitter-consent-v1 in localStorage records your choice of detailed statistics, cookieless page visits or refusal, plus the preference version and expiry. Every choice lasts six months. After expiry the application requests a new choice and all PostHog measurement stops until you choose a statistics mode. This preference contains no visitor identifier and is not sent to PostHog. Existing refusals are respected.

Older versions stored cidr-splitter-color-mode as a display preference. This version uses a fixed dark theme and no longer reads or writes that key. A legacy value may remain until you remove it in browser settings. It is not sent as an analytics property.

Optional PostHog statistics

Before you choose a statistics mode, the application does not load the PostHog SDK or send PostHog requests. “Accept statistics” enables page visits and tool-usage events, with event/session identifiers held in memory rather than a persistent identity cookie. The SDK may store a consent marker named __ph_opt_in_out_<project-token> in localStorage. The application’s six-month preference is authoritative.

“Continue without cookies” enables page visits only, with no analytics identity in cookies, localStorage or sessionStorage. PostHog estimates daily visitors on its servers using the connection IP, browser user agent and page hostname. The identifier changes daily. The application removes SDK consent markers in this mode and keeps only its essential preference above. The Privacy Policy explains this processing and counting limits.

Legacy PostHog localStorage/sessionStorage keys beginning with ph_ or __ph_opt_in_out_, and accessible legacy cookies including ph-identify, are removed when statistics are not permitted. The browser’s same-origin and cookie-scope rules limit which storage this application can delete.

Statistics are provided by PostHog, Inc., using PostHog Cloud European Union. Session recordings and automatic interaction capture are disabled. The Privacy Policy explains processing, provider retention and your rights.

Cloudflare security and performance services

Cloudflare’s default protections help secure the site. Security cookies may be used when a visitor encounters a challenge.

If Cloudflare presents a security challenge, it may use cf_clearance to remember successful validation. The domain’s Challenge Passage is configured to 30 minutes. Cloudflare documents additional validation allowances for clock differences and XMLHttpRequest requests, so this setting is not a universal expiry guarantee. See Challenge Passage and Cloudflare’s cookie reference. These security mechanisms serve site protection and operate separately from optional PostHog statistics.

A separate domain-level Web Analytics configuration enables automatic performance-script injection outside the EU. The application’s Cookie preferences control PostHog statistics and do not control this Cloudflare measurement. See the Privacy Policy for details.

Change or withdraw your choice

Open Cookie preferences to choose “Accept statistics”, “Continue without cookies” or “Refuse statistics”. The last option stops both detailed and cookieless PostHog collection. Every calculator, copy action and export remains available if you refuse. Do Not Track and Global Privacy Control disable both modes.

Withdrawal stops future PostHog collection and removes accessible PostHog storage. Events already delivered require a separate deletion request. Changes are synchronized across open tabs on the same origin where browser storage is available. If storage is blocked, your choice applies to the current page session.

You can also remove site data in browser settings. Removing the consent preference returns the site to its initial state with PostHog statistics disabled. The Privacy Policy describes processing, your rights and how to contact the controller.