## default is 1 zstd_comp_level 2; zstd_min_length 1024; zstd_buffers 32 16k; zstd_types application/atom+xml application/javascript application/json application/vnd.api+json application/rss+xml application/x-javascript application/xhtml+xml application/xml image/svg+xml image/x-icon text/css text/javascript text/plain text/xml ;