The continuing increase in size and complexity of Web sites has turned their design and construction into a challenging problem. Systematic approaches can bring many benefits to Web site construction, making development more methodical and maintenance less time consuming. Computational logic can be successfully used to tackle this problem, as it supports declarative specifications and reasoning about specifications in a more natural way. Computational logic also offers metaprogramming capabilities that can be used to develop methods for automated Web site synthesis. This chapter presents an approach to Web site synthesis based on computational logic and discusses in more detail two important features of the proposed approach: the support for property checking and integrity constraint specification and verification.