Half Page No Expandable

Half Page ads are 300x600 ad units. This ad size allows advertisers to offer users richer content and a large space to display that on. Half page units, according to Google, have “the fastest growing sizes by impressions and is indicative of a trend where publishers are offering more visually impactful ad sizes that are preferred by brand advertisers.”

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Submission Lead-Time: Creative files and click-through URLs must be submitted to Northstar no later than 5 business days prior to launch. HTML5 submissions are due 10 business days prior to launch.

Creative Unit Name
IAB Standard
width x height
File TypesFile Size Limit
Half Page (Static)300x600.gif, .jpg, .png60 KB max initial load
Half Page (HTML)300x600HTML5200 KB max initial load


Animation: Allowed for this unit.
  • 15s max - 3 loops max
Expansion: Not Allowed for this unit.
    Video & Audio: Allowed for this unit.
    • Image and Video combined cannot exceed 1 MB in total file size.
    • Audio Starts with Video after User Initiation
    • Video: Minimum 24fps. Resolution 240x180 or greater.
    • Preferred file formats: *.mpg, *.avi, *.flv, *.mov and *.mp4.
    • Length: 15 seconds maximum
    • Video Controls: Play, Pause, Rewind, Volume.
    • Controls on Edge - Replay, Close X

      3rd Party Hosted Required for HTML5 units not being built by Northstar. See General Guidelines for additional information. Northstar will not provide video metrics on 3rd party hosted creative.