Privacy Policy
fazAconta respects your privacy. The site requires no sign-up or login, has no forms, and does not store the numbers you type: the calculators run entirely in your browser and nothing is sent to us. The only personal data processed comes from third-party tools — Google Analytics and Google AdSense — described below.
Who runs this site
This policy applies to fazaconta.com, run under the fazAconta brand. For any privacy or personal-data question, contact [email protected].
What data is processed
- Directly by us: none. There is no sign-up, login or form. The math happens on your device, and the numbers you enter are never sent or stored.
- By third-party tools (via cookies): usage and browsing data collected by Google Analytics (audience measurement) and Google AdSense (ad serving). This may include IP address, device and browser type, pages visited and cookie identifiers.
Google Analytics (GA4)
We use Google Analytics 4 to understand, in aggregate, how the site is used (most-visited pages, traffic sources, performance) so we can improve it. For that, Google sets cookies and identifiers that collect data about your visit. See how Google handles this data at Google's policies and principles ↗.
Google AdSense
fazAconta is free and supported by Google AdSense ads. Google and its partners use cookies to serve ads, cap frequency and — where there is consent — personalize them to your interests. You can manage ad personalization at Google Ads Settings ↗.
Cookies and consent
fazAconta sets no cookies of its own; the cookies present are Google's (Analytics and AdSense), described above. Visitors from the European Economic Area, the United Kingdom and Switzerland see a consent banner (Google's certified consent platform) before those cookies are activated — you can accept or decline, and change your choice at any time. That consent controls both advertising and audience measurement via Consent Mode.
California residents (CCPA/CPRA)
We do not sell personal data for money. The use of advertising cookies may qualify as "sharing" under California law; visitors from applicable US states can opt out through the privacy banner shown in their region, and through the Google settings linked above.
Your choices
- In the consent or privacy banner (where it appears), accepting or declining cookies.
- In your browser settings, blocking or deleting cookies at any time.
- At Google Ads Settings ↗, turning off ad personalization.
Your rights
Depending on where you live — the GDPR in Europe, the CCPA/CPRA in California, the LGPD in Brazil — you may have the right to access, correct, delete, object to the processing of, or port your data, and to withdraw consent. Since we keep no accounts, most of this data sits with Google (use the settings above); for requests directed at us, write to [email protected].
International transfers
Google Analytics and AdSense process data on Google servers around the world, including the United States. That processing follows Google's own safeguards and privacy terms.
Who the site is for
fazAconta is an educational site for a general audience. Some content (like Roman numerals or basic math) can be useful to students of any age, but the site is not directed at children and does not knowingly collect personal data from minors. We recommend that children browse with a parent or guardian.
Changes to this policy
This policy may be updated to reflect changes in the tools or the law. The date of the last revision is shown at the end.
Contact
Questions about privacy? Write to [email protected]. See also the about page (in Portuguese).
Last updated: July 2026.