网页效率之DNS查找和并行下载
雅虎的YSlow插件的规则之一:Rule 9 – Reduce DNS Lookups提到: Reducing the number of unique hostnames has the potential to reduce the amount of parallel downloading
雅虎的YSlow插件的规则之一:Rule 9 – Reduce DNS Lookups提到: Reducing the number of unique hostnames has the potential to reduce the amount of parallel downloading
仔细研究了下YSlow跌评分规则。 主要有12条: 1. Make fewer HTTP requests 尽可能少的http请求。。我们有141个请求(其中15个JS请求,3个CSS请求,47个CSS background images请求),多的可怕。思考了下,为什么把这个三种请求过多列为对页面