1. A domain-specific web server apparatus comprising: first circuitry configured to receive a hypertext transfer protocol (HTTP) request; second circuitry configured to generate an input symbol based on the HTTP request; third circuitry configured to validate that a value of the input symbol is valid according to a first domain, wherein the first domain is one of a plurality of domains embedded into hardware of the domain-specific web server apparatus, wherein the first domain includes, via a hardwired symbolic notation, values that the HTTP request is allowed to have; fourth circuitry configured to generate an output symbol by mapping the input symbol from the first domain to a second domain of the plurality of domains; fifth circuitry configured to determine output data based on the output symbol; and sixth circuitry configured to transmit the output data as a response to the HTTP request.