General Information & Guidelines
Avg. Click-thru Percentage: >0.30
Additional statistics furnished upon request
Ad Sizes and Rates
- Short Column Ad
- 280 pixels wide by 140 pixels tall maximum dimensions
- TallColumn/Skyscraper Ad
- 120 pixels wide by 600 pixels tall maximum dimensions
- Banner/Trailer Ad
- 600 pixels wide by 140 pixels tall maximum dimensions
Click Thru URL and Alternative Text
A linking URL (click thru) must be submitted for each ad creative. Alternative text is mandatory (150 character limit).
Ad File Format
GIF, Animated GIF, JPEG, or PNG files must be used
Is not allowed on the Green500.org website. We accept static ads and animat- ed GIF images only.
All ad materials must be received at least ten (10) business days prior to the start date for testing purposes.
Third Party Serving Guidelines
Green500 accepts third-party served ads but requires a ten business day lead time for testing purposes.
Advertisers must send all creative to Green500 at least two(2) business days prior to flight date. Green500 must approve all creative running with third party tags at least ten (10) business days prior to the start date for testing purposes.
Green500 is not responsible for developing programming scripts to ensure compatibility with third party serving software; any materials necessary to insure compatibility must be provided by advertisers or their third-party serving agent.
Green500 reserves the right to terminate a campaign at any indication that it is not being properly served.
Interstitials: Pop Up Windows and Floating Ads are NOT allowed
Number of ads per page will be as follows:
- Six (6) ads per page:
- Five (5) ads per page:
- Main LISTS page
- Three (3) ads per page:
- Two (2) ads per page:
- LIST release pages