Banner Advertisement Rules

• Supported image dimensions
• Banner formats: sorted by amount of clicks
• Mobile banner formats: sorted by amount of clicks
• Supported dimensions for Branding
• Advertisement rules

The advertisement rules for banners are identical to those for text advertisement. Banners must also 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 Sklik to promote illicit or limited content. Below you can find the parameters and specific terms of service pertaining to banners.

Supported image formats: JPEG, JPG, PNG, GIF

It is also possible to work with HTML5 banners (you can use one of the third-party tools to produce HTML5 ads and then upload the ZIP file to Sklik interface). At the moment, HTML5 ads cannot be created or edited via the API or via import/export.

Recommended length of animation: Animation is not limited in length; however, it is not recommended to exceed a length of 30 seconds.

The maximum data size is 150 KB.

Supported image dimensions:

• Vertical formats
  • 160×600 px
  • 300×600 px
• Cubes
  • 300×300 px
  • 480×480 px
• Horizontal formats
  • 300×250 px
  • 320×100 px
  • 480×300 px
  • 728×90 px
  • 970×210 px
  • 970×310 px

Banner formats: sorted by amount of clicks – in descending order

• 480×300 px
• 480×480 px
• 300×250 px
• 300×600 px
• 970×310 px
• 300×300 px
• 320×100 px
• 970×210 px
• 160×600 px
• 728×90 px

Mobile banner formats: sorted by amount of clicks – in descending order

• 300×250 px
• 300×300 px
• 320×100 px

Supported dimensions for Branding

• 2000×1400 px

Advertisement rules

• The advertisement must fill the entire image; the principal image and/or text message must not reach outside the indicated advertisment space.
• Images and text must be relevant and clear in content and quality. Banner content must be horizontal, reading from left to right without tilting or 180° rotation.
• Banners may contain features similar to controls provided they can be used to deliver the presented target on the landing page.
• Banners must contain advertisement messages.
• Banners must contain the logo or domain or company name.
• Banners must not appear similar to text advertisement, system or website messages, dialogs or operating system environment. Banners must not have transparent background.
• Animated banners must not contain disruptive features such as excessive blinking of the background, imitation of the stroboscopic effect or optical illusion.
• Advertisement messages must not violate copyright, trade mark rights, any other instruments that are subject to industrial or intellectual property protection as well as rights pertaining to third parties (see Item 2.3 of Terms and Conditions of Seznam.cz for details).