Online advertising - preparing files to send

The following guidelines apply to advertising copy supplied to Mercator Media Ltd for publication online

New for 2013, our site incorporates ‘responsive’ designs. It can detect the device on which it is being displayed, whether desktop PC, tablet or mobile, and render with the size, layout and resolution that makes it easiest-to-read.

It is very important that the size of online advertisement files match industry standards. The accepted current industry standard is set by the Interactive Advertising Bureau. The IAB Ad Unit Guidelines are intended for marketers, agencies and media companies for use in the creating, planning, buying and selling of interactive marketing and advertising. This standard is applied by nearly every media company in the world. The following guidelines apply to material created by Mercator or supplied by clients or agencies.

Acceptable formats

  • GIF, animated GIF, JPEG, PNG
  • SWF files must be supplied with embedded tracking code &a back-up GIF or JPEG and embed your own tracking code.
  • An active website URL must be supplied for the advertisement to link to. Alternative, we can link to a Directory entry.
  • Supplied rich media in advertisements is subject to our approval.

File size

Files that are too big slow website loading times for visitors to the site. Supplied material that exceeds the maximum file size indicated by more than 20% will be returned to the originator for revision

  • The maximum file size is 40KB.
  • The maximum animation length is 15 seconds

Company online directory add-ons

  • PDFs, 40KB per item. Max 10 sec loading time.
  • AV/Video content is served via YouTube. Recommended duration is max. 30 seconds. Max file size 250KB. Either:
    1. Via your own YouTube account - please supply us with the video code.
    2. Via Mercator Media's YouTube account - please supply us with a video file (MPEG4 with MP3 audio for best results).