Measuring What is Not Ours: A Tale of 3rd Party Performance.
PAM(2017)
摘要
Content Providers make use of, so called 3rd Party (3P) services, to attract large user bases to their websites, track user activities and interests, or to serve advertisements. In this paper, we perform an extensive investigation on how much such 3Ps impact the Web performance in mobile and wired last-mile networks. We develop a new Web performance metric, the 3rd Party Trailing Ratio, to represent the fraction of the critical path of the webpage load process that comprises of only 3P downloads. Our results show that 3Ps inflate the webpage load time (PLT) by as much as 50% in the extreme case. Using URL rewriting to redirect the downloads of 3P assets on 1st Party infrastructure, we demonstrate speedups in PLTs by as much as 25%.
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