2020-02-16 标签:网页,效率,dns,查找,并行,下载,雅虎,yslow,插件,规则,之一,rule,reduce,lookups,提到,reducing,n,umber,unique

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