Abstract: Embodiments relate to systems, devices, and computing-implemented methods for dynamically generating, at a website server, a webpage based on client device information received from the client device and transmitting the webpage to the client device. A dynamic content slot in the webpage can be filled, by the website server, based on receiving a request from the client device, and dynamic content can be obtained and transmitted to the client device. Dynamic content slots can be filled, at least in part, based on client device information and a first client device can receive different dynamic content than a second client device. Thus, the website server can control the dynamic content that appears on the website and, by sending the dynamic content via the website server, browsers of the client devices can identify the dynamic content as actual website content of the webpage.