Web servers are the base of your website and web applications.The primary function of a web server is to deliver web pages on request. The faster the web server the better the performance of your website.
Server side code is the collection of programming languages and technologies that build your web application. It defined the rules and business logic of your website. The security of your website relies heavily on it and so does every other important aspect such as performance and user experience. This is where you want to hire the best to do the work from the start so you don't spend time fixing bad code that can really be a heavy cost and even in some cases put you out of business.
A database engine (or "storage engine") is the underlying software component that a database management system (DBMS) uses to create, read, update and delete (CRUD) data from a database. Here is a list of databases that we use regularly.