Open gzip
Configuration
# 开启gzip gzip on; # 启用gzip压缩的最小文件,小于设置值的文件将不会压缩 gzip_min_length 1k; # gzip 压缩级别,1-10,数字越大压缩的越好,也越占用cpu时间,后面会有详细说明 gzip_comp_level 2; # 进行压缩的文件类型。javascript有多种形式。其中的值可以在 mime.types 文件中找到。 gzip_types text/plain application/javascript application/x-javascript text/css application/xml text/javascript application/x-httpd-php image/jpeg image/gif image/png; # 是否在http header中添加vary: accept-encoding,建议开启 gzip_vary on; # 禁用ie 6 gzip gzip_disable "msie [1-6]\.";
gzip_comp_level parameter
For reasonable values of gzip_comp_level, please refer to the figure below. From
It can be seen from the figure that the effect is not very obvious when gzip_comp_level
is greater than 2. So you can set the value to 1 or 2.
Enable caching
Configuration
location ~* ^.+\.(ico|gif|jpg|jpeg|png)$ { access_log off; expires 30d; } location ~* ^.+\.(css|js|txt|xml|swf|wav)$ { access_log off; expires 24h; } location ~* ^.+\.(html|htm)$ { expires 1h; }
The cache time can be modified as needed.
About fonts
Enabling caching for static resources can reduce the consumption of server bandwidth, especially when using fonts in css. At the same time, combined with gzip compression, it can greatly reduce the cost of downloading fonts. Bandwidth impact.
Set font cache
It should be noted that there are many font formats, and it is necessary to set cache for all font formats.
location ~* ^.+\.(eot|ttf|otf|woff|svg)$ { access_log off; expires max; }
Enable gzip
Only need to enable gzip for ttf, otf and svg fonts. The effect of gzip compression on other font formats is not obvious.
gzip_types font/ttf font/otf image/svg+xml
The compression effect of various font types can be referred to the following test results:
It can be seen that the gzip compression effect of woff and eot is not good.
Font summary
Extension | Whether to compress | content-type |
---|---|---|
.eot | No | application/vnd.ms-fontobject |
.ttf | is | font/ttf |
.otf | is | font/opentype |
.woff | No | font/x-woff |
.svg | is | image/svg xml |
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