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Accepted
clarkk
Asked: 2018-06-10 12:13:31 +0800 CST

gzip not working on nginx

  • 772

conf

gzip  on;
gzip_vary  on;
gzip_min_length  100;
gzip_buffers  16 8k;
gzip_proxied  any;
gzip_types
    text/plain
    text/css
    text/javascript
    application/json
    application/javascript;

enter image description here

nginx

3 Answers

  1. Best Answer

    Make Sure Gzip module installed with nginx

    2>&1 nginx -V | tr -- - '\n' | grep _module | grep gzip

    Output Should be : http_gzip_static_module

    Configuration

    Host Configuration file under server block.

    gzip on;
gzip_disable "msie6";

gzip_comp_level 6;
gzip_min_length 1100;
gzip_buffers 16 8k;
gzip_proxied any;
gzip_types
    text/plain
    text/css
    text/js
    text/xml
    text/javascript
    application/javascript
    application/x-javascript
    application/json
    application/xml
    application/rss+xml
    image/svg+xml/javascript;

    service nginx reload

    Testing

    curl -H "Accept-Encoding: gzip" -I https://example.com/
    • 3

  2. Have you tried to add 'gzip_comp_level level;'? It looks like you missed something in your configuration. Here you have a working example:

    gzip on;
gzip_comp_level 2;
gzip_http_version 1.0;
gzip_proxied any;
gzip_min_length 1100;
gzip_buffers 16 8k;
gzip_types text/plain text/html text/css application/javascript application/x-javascript text/xml application/xml application/xml+rss text/javascript;
gzip_disable "MSIE [1-6].(?!.*SV1)";
gzip_vary on;
    • 2

  3. In my experience you can't rely on browser developer console output to check for gzip compression.

    Any anti virus software you have running is probably going to intercept and decompress the gzip files to scan them before they hit the browser.

    I have gzip enabled on my Nginx servers and I see no evidence of it in my chrome dev console.

    curl reveals the truth though...

    curl -H "Accept-Encoding: gzip" -I https://example.com/

    returns:

    HTTP/1.1 200 OK
Server: nginx
Date: Sun, 22 Jul 2018 16:22:41 GMT
Content-Type: text/html; charset=UTF-8
Connection: keep-alive
Vary: Accept-Encoding
Link: <https://example.com/>; rel=shortlink
Access-Control-Allow-Origin: https://example.com
Content-Encoding: gzip

    Where Content-Encoding: gzip is obviously what you are looking for in your response headers.

    You may also want to add a gzip_http_version 1.0; directive to your Nginx conf, as by default http 1.1 is minimum version required for Nginx to serve gzip

    • 0