Tag: fundamentals

Fundamentals of Web Site Acceleration Part 2

Cache Control

What Is Caching? How Does It Apply to the Web?

Caching is a well-known concept in computer science: when programs continually access the same set of instructions, a massive performance benefit can be realized by storing those instructions in RAM. This prevents the program from having to access the disk thousands or even millions of times during execution by quickly retrieving them from RAM. Caching on the Web is similar in that it avoids a roundtrip to the origin Web server each time a resource is requested and instead retrieves the file from a local computer’s browser cache or a proxy cache closer to the user.

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