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Jeffrey C. Mogul : What is HTTP Delta Encoding?

"Web caching is successful because many Web pages don't change between references. But some resources do change, which forces the re-retrieval of modified resources. However, the modifications are often minimal; if one could encode just the differences between the cached (older) page and the new page, in many cases that would require sending very few bytes. This approach is called delta encoding."

refers to


Paul Lukas : Inconspicuous Consumption ←  → Eric van der Vlist : XMLtree