varnish vcl 参考

Fastly VCL 入門 - Qiita 2021更新

https://www.fastly.com/blog/normalizing-host-header 2014

https://github.com/envyj020/varnish-vcl-4.0-templates/blob/master/default.vcl

https://wordpress.org/support/topic/good-varnish-4-defaultvcl/