Exoclick is a trusted ad network a good Google Adsense alternative but maybe you ask what is the tech behind this ad network:

• The ad  creatives served from a Global CDN [Content Distribution Network] with over 1000 servers in 35 strategic locations around the world.
• Fully scalable system spread over two continents America and Europe.
• High quality hardware in the servers cutting-edge tech Intel Xeon proccessors.
• Reliable, serving over 1.7 billon ad impressions per day and monitoring 24/7 the speed and performance.