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The impressions of the advertised page can be controlled by the browser used. The promotion of the page can thus be limited to specific browsers. Available options include Google Chrome, Mozilla Firefox, Edge, Internet Explorer, Opera, and the Other field, which refers to all other browsers.
Important: Setting the browser type filter too restrictively may result in very few visitors being able to view the ad campaign. Major browsers such as Mozilla Firefox or Google Chrome should not be excluded if possible.

Why should I exclude certain browsers?
Filtering by browser type can be useful for webmasters whose website uses newer technologies that are not yet supported by all browsers. Additionally, certain web technologies may not function properly in smaller browsers such as Opera or Safari.
Webmasters who work with advertising partners should ensure that ads are displayed in all browsers. Browsers that do not support specific ad campaigns can be excluded using the filter.
By excluding users of certain browsers, you can ultimately save important resources and valuable advertising credits while considering all relevant criteria.
Which web browser should I optimize my website for?
As a general rule, a modern website should meet the requirements of all major web browsers. It is recommended to follow the web standards of the World Wide Web Consortium (W3C) and to optimize the website regularly. Individual adjustments should be guided by the market share of each browser: for browsers with a small market share, a time-consuming optimization is often not justifiable.
