A world first pre-emptive solution which addresses the specific problem of ad misplacements for brands wanting to protect their reputations online. Recent stories such as those on Brand Republic have continued to highlight issues around ad misplacement which may affect confidence in the £400m ad network market in the UK.

Successful trials for a number of large agencies and advertisers have demonstrated the effectiveness of SiteScreen, which vets pages for objectionable content. It’s powered by the iSense Sense Engine™ - our proprietary patented semantic analysis technology – enabling SiteScreen to perform instant semantic analyses of pages where campaigns are due to be placed. SiteScreen automatically blocks and prevents ads from being delivered against unsuitable and potentially brand damaging content.

Alcatraz (or the Rock) is a 22-acre island in San Francisco Bay. The island is located just a little over a mile from Fisherman's Wharf in San Francisco. Alcatraz is best known as a federal maximum-security prison (and site of a number of popular motion pictures). Since 1934, the Island has consisted solely of the various buildings and facilities that comprised Alcatraz Penitentiary. The most famous Alcatraz residents have included Al Capone, "Machine Gun" Kelly, and Robert "Birdman of Alcatraz" Stroud. The prison closed in 1963 due to the extremely high costs of operating the facility. Since that time, Alcatraz has become an extremely popular tourist attraction.

To enter the competition all you need to do is guess the 4 digital security code, email your answers to: sitescreenuk@adpepper.com.