Jetpack免费提供图片CDN加速，永久缓存！

来源 https://blog.idarian.com/WordPress-xie-shou-Jetpack-mian-fei-ti-gong-tu-pian-CDN-jia-su--yong-jiu-huan-cun-

加速域名

i0.wp.com
i1.wp.com
i2.wp.com
i3.wp.com

路径格式

http://i0.wp.com/$REMOTE_IMAGE_URL

原始地址：https://img1.static.ruyo.cc/ali//kf/HTB1x1ylS9rqK1RjSZK9760yypXaL.png
图片地址：https://i0.wp.com/img1.static.ruyo.cc/ali//kf/HTB1x1ylS9rqK1RjSZK9760yypXaL.png