# 8s 定律

路径拥堵

中心服务器,去中心,低延迟,分布式

CDN cache L2 / CDN cachd L1

DCDN/SCDN

DNS/TCP/SSL/TTFB

mtr/traceroute/httpstat/17测

ETag X-Cache: HIT X-Swift-CacheTime: 3600 X-Swift-SaveTime: 3600

Last Updated: 2/26/2021, 3:58:27 PM