Cookies and advertising

Last updated: October 21, 2026

No ImageOptimizer cookies

ImageOptimizer itself sets no cookies and loads no third-party services: no ads, no audience measurement.

The only exception: the host applies anti-bot protection that may, in some cases, set a technical security cookie ("o2s-chl", lasting one day). It is strictly necessary for this protection to work and is not used for any tracking.

When advertising is enabled

The service is intended to be funded by advertising. Before enabling an advertising partner, a banner will ask for your consent; without consent, no ads will be loaded and no advertising cookies will be set. This page will then be updated with the details.