Release Date: August 4th, 2026

Browser

New browser and operating system targeting options are now available.

Users can target the following browser types:

• Chrome
• Safari
• Firefox
• Opera
• Internet Explorer
• Other: Includes browser values received in bid requests that do not match one of the defined browser types.

Operating System (OS)

For operating system targeting, users can enter values directly into the Operating System field, with each value on a separate line.

A new Download OS List button is also available. This downloads a CSV of operating system values observed in bid requests and available for targeting. Users can copy & paste the values directly from the CSV file into the input box.

Targeting Behavior

Both Browser and Operating System targeting support the following options:

• Allow List: Only requests matching one of the selected values are eligible.
• Block List: Requests matching any selected value are ineligible.
• Require Browser / Operating System: When enabled, requests must contain a browser or operating system value that is not null. When disabled, requests without a value may still be eligible, provided they do not conflict with the selected allow or block list.