Cookies

A cookie is a small text file a website asks your browser to store. Modern sites also use localStorage, IndexedDB, web beacons, and pixels — for brevity we call all of them "cookies" on this page. They can be set by the site you visit (first-party) or by services embedded on it (third-party, such as advertising networks).

We try to use as few of them as technically possible. Everything that can run in your browser without a cookie, runs without a cookie. We only reach for cookies when there is a concrete function that would not work otherwise — measuring how the site performs, remembering a setting you chose, or showing ads funded by Google AdSense.

A cookie can be a session cookie (lives only while your tab is open) or a persistent cookie (sticks around for days, months, or years). It can be HTTP-only (your browser sends it back to the server but JavaScript cannot read it) or accessible to scripts. We favor the most restrictive option that still lets the feature work. Where we can ship a functional equivalent that uses no cookie at all — for example, Vercel Analytics, which fingerprints nothing — we do.

Before any non-essential cookie is set, we ask for your consent through Google's Funding Choices consent banner. Funding Choices is a CMP (Consent Management Platform) provided by Google itself — it detects whether you are visiting from the EEA/UK (where GDPR applies), from Brazil (where LGPD applies), or from another region, and shows the appropriate prompt in your language.

We also implement Google Consent Mode v2. In practice that means every visitor is treated as non-consented by default: any ad or analytics cookie that would otherwise be set is blocked at the script level until you interact with the banner. Only after you click "Accept" does Google widen the signal and allow personalized content. If you click "Reject" or close the banner, non-essential cookies stay blocked.

You can change your choice at any time. The footer has a "Manage cookie preferences" link that re-opens the Funding Choices banner and lets you update your settings. A second click never creates a new cookie until you save your new choice.

**Strictly necessary.** These keep the site usable and cannot be turned off through the banner — they are the electronic equivalent of putting up a "please come in" sign. Examples: a cookie that remembers which language you chose (NEXT_LOCALE), a theme preference (dark/light), and internal routing state handled by the Next.js framework.

**Preferences / functional.** Saves choices that improve your experience on return visits: your favorite calculators, your recent calculation history, which chart granularity you last selected on a compound-interest simulation. These live in your browser's localStorage or IndexedDB — never on our servers. Blocking them only costs you the convenience of not re-selecting each time.

**Analytics.** Provided by Vercel Analytics (cookie-less) and, if you consent, by Google. These measure page views, approximate country (derived from your IP and discarded immediately), and Core Web Vitals (LCP, INP, CLS). We cannot link them to your identity.

**Advertising / marketing.** Served by Google AdSense when you consent. They let Google pick ads that are relevant to you based on signals Google itself collects across its network. Without consent, Google only serves contextual ads chosen from the page content, not from your profile.

We do not operate any advertising cookie of our own. Every ad cookie on this site originates from Google or a Google-approved partner, and every one of them is subject to the consent choice you made through the banner. Rejecting the banner does not disable ads — it changes them from personalized to contextual, which still funds the site but does not track you across visits.

**Google AdSense / Funding Choices.** Our primary advertising partner and our CMP. AdSense may set cookies under domains such as doubleclick.net or googleads.g.doubleclick.net when consent is granted. You can review and change your ad personalization settings directly at https://www.google.com/settings/ads — that page covers every Google-served ad across every site you visit, not just ours.

**Vercel.** Our hosting provider. Vercel Analytics and Speed Insights run without cookies and are always active; they only see aggregated, anonymous traffic. Vercel's privacy policy: https://vercel.com/legal/privacy-policy.

**Cloudflare.** Our DNS and edge provider. Cloudflare may set a __cf_bm cookie for bot-protection purposes on specific requests. It is classified as strictly necessary and does not track users across sites.

We do not load any social-network pixel (Facebook, LinkedIn, X, TikTok) and we do not share data with data brokers. If that changes, this page will be updated before the change takes effect.

Every modern browser lets you delete cookies, block specific sites, or refuse third-party cookies entirely. Short links:

- Chrome: Settings → Privacy and security → Third-party cookies

- Safari: Settings → Privacy → Manage Website Data

- Firefox: Settings → Privacy & Security → Cookies and Site Data

- Edge: Settings → Cookies and site permissions

Blocking cookies entirely will not break the site — you will just re-pick your language and theme on every visit, and ads (if consented elsewhere) may be less relevant.

If you use a tracker blocker (uBlock Origin, Privacy Badger, Brave Shields), it will transparently suppress most of the Google advertising cookies we list above without affecting the calculators. You can keep the blocker on and still use every feature of the site. The only thing that visibly breaks is the consent banner itself, because the blocker sometimes removes the script that opens it — in that case the Manage cookies button in our footer will tell you to temporarily allow the page before it can reopen.

Under the LGPD (Brazil) and the GDPR (EU/UK), you have rights of access, rectification, deletion, objection, and withdrawal of consent. Because we collect almost nothing tied to your identity, "access" and "deletion" usually translate to: clear your browser data for quickusecalculator.com. For anything Google-managed, use the ads settings link above, or contact Google directly through the CMP.

Consent is the legal basis we rely on for any non-essential cookie. That means: no cookie that requires consent is set before you click Accept, consent can be withdrawn as easily as it was given, and a refusal does not block access to the calculators. The only categories that function without consent are strictly-necessary cookies, whose legal basis is our legitimate interest in operating the site at all.

You can always reach us at contact-us@quickusecalculator.com for privacy questions. We respond within a few business days. For complaints that go unanswered, Brazilian visitors can escalate to ANPD (Autoridade Nacional de Proteção de Dados) and EU/UK visitors to their national Data Protection Authority.

We update this page whenever a cookie is added, removed, or changes purpose. When a change materially affects your consent (a new category, a new third-party), we re-open the consent banner so your previous choice cannot silently cover a new situation.