Privacy policy

This policy explains what Comparezi collects when you use the site, and why.

What we collect

• Server logs: IP address, browser, pages requested and time, used for security and to keep the site running.
• Cookies: a session cookie and a security token that the site needs to work. They are deleted when they expire.
• Stored in your browser, not sent to us: your light/dark theme choice, the products in your compare tray and, while you are signed out, the products you recently viewed. The site asks for those products' current details by number only; it does not learn who is asking.
• Usage counts: which products, categories, comparisons and searches are popular. We count these on our own server without cookies; each count carries a short code derived from your connection that changes every day, so it cannot follow you from one day to the next. Raw counts are deleted after 30 days.
• Outbound clicks: when you follow a link to a seller we record the offer, page type, time, price shown and a one-way hash of your connection details (see how we earn).
• Accounts (optional): your email address, a password we store only as a one-way hash, an optional display name and the time you last signed in. With an account we also keep what you ask us to keep: saved products and comparisons, price alerts (product, target price, currency, status) and, while the "remember products I view" switch is on, up to 24 recently viewed products. We send email only to verify your address, to reset a password you asked to reset, and when a price alert you set is reached. No marketing email.

Advertising (Google AdSense)

Comparezi shows ads served by Google AdSense. Ads appear only on content pages, never on account, sign-in, search-results or error pages.

• Third-party vendors, including Google, use cookies to serve ads based on your previous visits to this website and other websites.
• Google's use of advertising cookies enables it and its partners to serve ads to you based on your visits to this site and/or other sites on the internet. How Google uses this information: How Google uses data from sites that use its services.
• You can turn off personalised advertising in Google's Ads Settings. You can also opt out of some other vendors' use of cookies for personalised advertising at aboutads.info.
• Visitors from the European Economic Area, the UK and Switzerland are asked for consent through Google's consent message before personalised ads are shown.

We do not give advertisers your account details, saved items or alerts. If Google Analytics is switched on, it runs with advertising signals off, and it is not loaded at all when your browser sends the Global Privacy Control or Do Not Track signal. When you leave for a store's site, that store's privacy policy applies.

Your choices

You can clear cookies and browser storage at any time. With an account you can change or remove any of it yourself: saved items and alerts from their pages, viewing history under Account › Settings, and the whole account with the "Delete account" button there, which removes everything above immediately. For anything else, use the contact page.