Parallel processing is a way to run multiple parts of a repetitive command at the same time, in parallel.
Regular expressions is a generalized way to search and extract information from any string by using special human-readable patterns. They are supported by most computer languages and frequently used for purposes like text matching, input validation, and log processing.
Browser cookies are small pieces of information that are stored on the user’s computer while they browse websites.
Client-side SSL certificates are a great tool to add an extra layer of security by validating client connections.
There are a few advanced tricks to optimize images for web consumption, such as sharpening them after size reduction and using dedicated command-line tools to reduce their sizes.