One crucial thing to do before selecting a web development agency is to analyze its web hosting service. It is essential to know whether they are providing a virtual hosting platform service or not. Virtual hosting is a way for web hosting to handle significant spikes in web traffic very easily. You can also ask them how long backups are retained, how fast is the processing power of the hosting platform and what is the assured uptime. These things will help you know and understand whether the agency is the right fit for you or not.