Branding (RTB)Novinky.cz

The technical specification for this ad format is identical for all services.

Before you produce

The advertisement must conform to Seznam.cz’s general rules for preparation of advertisement formats. Before you start your advertisement, please make sure you do not intend to use on Seznam.cz RTB inventory to promote illicit or limited content.

Technical specifications


Image (JPG, PNG)


2000×1400 px (width × height)

Maximum data size

500 kB

Requirements concerning design

  1. Creative may not be transparent.
  2. Graphics must fill the entire space of creative 2000×1400 px, including the space that will be overlaid page. If you need to fill covered space with color (usually white or black), it is necessary to keep a minimum safe distance of 100 px from the border inwards – see example.
  3. The main message must be placed at the top in the 1366×720 px (see example). No text and logotypes should be interfered with in the space outside of the main message (photo as background is allowed).
  4. Text in creative can not occupy more than 1/2 of the total visible area.

External display code

Permitted in compliance with the rules as IFRAME tag only.

External monitoring of impressions

Permittedin compliance with the rules only one URL with 1×1 px monitoring image.

Additional information

You can verify the correct placement of text, logotypes and other graphical elements using our tool for Verifying visible zones.