DiffCheck

Cookie Policy

Cookies and local storage used by DiffCheck, and how to accept or reject optional analytics.

Overview

This page explains the cookies and similar storage DiffCheck.org uses, and how you can choose what is optional. It should be read with the Privacy Policy.

Last updated: 15 November 2026

Your choice

When you first visit, a banner asks whether to allow optional cookies. You can accept them or continue with essential storage only. Analytics does not run until you accept. You can change your mind at any time with the button below.

Essential storage

These are needed for the site to remember basic preferences. They are not used for advertising.

  • Theme preference — stored in this browser as diffcheck-folio-theme so the light or dark theme stays the same on your next visit.
  • Cookie choice — stored as diffcheck-cookie-consent so we do not ask on every page load. The value is either all or essential.

The language you are viewing is in the URL (/en/, /zh/, or /ja/), not a language cookie.

Analytics cookies (optional)

If you accept optional cookies, we load Google Analytics (measurement ID G-MCC82ZJNWG). Google may then set cookies such as _ga and related identifiers to measure visits, pages viewed, and approximate region. We use this to see which tools are useful and to improve the site, not to collect the text you paste into tools.

If you choose essential cookies only, these scripts and cookies are not loaded. Details are in Google's privacy policy.

Advertising cookies (not in use yet)

We do not currently set advertising cookies or show ads. If we later use Google AdSense, advertising cookies will stay optional and will require the same kind of consent as analytics. We will update this page before those cookies are used.

Cloudflare

The site is hosted on Cloudflare Pages. Cloudflare may set cookies that help it deliver and protect the site (for example, cookies used to distinguish genuine visitors from automated traffic). These are part of how the site is served, not something we use to build an advertising profile.

Third-party lookups

A few tools contact an external service when you run them (IP Lookup, DNS Lookup, SSL Checker, and HTTP Header Inspector). Those requests are not cookies we set, but they do send the address or URL you asked to look up. This is described in the Privacy Policy.