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With the rapid development of Web, dynamic and personalized web pages increase gradually. In order to deliver dynamic web pages more efficiently, researchers proposed some kinds of schemes. ESI (Edge Side Includes) and CDE (Class-based Delta-encoding) which classical techniques for efficient delivery of dynamic web pages are elaborated in this paper. Then, dynamic page classification is discussed, which identifies two kinds of pages: active pages and inactive pages. In view of the advantages and disadvantages of ESI and CDE, a new model of efficient delivery of dynamic web pages based on shared fragments is presented and discussed in theory. Experimental results show that the model can provide more bandwidth savings and latency reduction than existing solutions: ESI and CDE.