Background Information

Part of the SpringerBriefs in Computer Science book series (BRIEFSCOMPUTER)


In this chapter, we give a clear and precise definition on when a Web object is allowed to be cached. A thorough, well-defined definition allows Web cache users to understand what requests they make could potentially be cached and as well is necessary for system administrators as a good tool in improving quality of service (QoS) for end users. We also provide the characteristics of Web objects. We explain the two basic architectures of Web proxy servers and introduce Squid, the open source proxy cache server.


Web request Cacheable request Web object Web proxy servers Squid 


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    S. Podlipnig, L. Boszormenyi, A survey of web cache replacement strategies. ACM Comput. Surveys 35(4), 374–398 (2003)CrossRefGoogle Scholar
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    Hypertext transfer protocol–HTTP/1.1 [online document] [cited Aug. 14, 2007] available. WWW:
  3. 3.
    What is squid?, available at

Copyright information

© Hala ElAarag 2013

Authors and Affiliations

  1. 1.Department of Math and Computer ScienceStetson UniversityDeLandUSA

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