Complete steps to enable gzip compression in nginx

Preface

Enabling gzip compression on a website is the most common way to increase access speed on a website. It increases the access speed of a website by compressing static resources.

1. Configure gzip compression

• Open the nginx configuration file
• Modify the gzip configuration in nginx
• Order

 vim /etc/nginx/nginx.conf

run

2. Detailed configuration

A detailed explanation of gzip configuration is as follows

 #Whether to enable gzip compression, on means enable, off means enable gzip on;
 
#Common static resources that need to be compressed 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;
 
#Since nginx compression occurs on the browser side and Microsoft's IE6 is very bad, it will cause the compressed image to be invisible, so this option is to disable IE6 from compression gzip_disable "MSIE [1-6]\.";
 
#If the file is larger than 1k, start compression gzip_min_length 1k;
 
#Use 16k as a unit, and apply for memory space in 4 times the size of the original data. Generally, do not modify gzip_buffers 4 16k;
 
#Compression level, the number selection range is 1-9, the smaller the number, the faster the compression speed, and the more CPU consumption gzip_comp_level 2;
 
#Include all sub-configuration files with the suffix .conf in the /etc/nginx/conf.d directory include /etc/nginx/conf.d/*.conf;

3. Restart nginx service

For the configuration to take effect, remember to restart the nginx service

 nginx -t
 
nginx -s reload

4. Is the activation successful?

The first way to check whether a website uses gzip compression is to use the following command

Order

 curl -I -H "Accept-Encoding:gzip,deflate" "URL you want to view"

If the following result appears, the startup is successful

 Content-Encoding:gzip

The second way to check whether a website uses gzip compression is to check the Content-Encoding option in the response header through the console. If gzip appears, it is enabled successfully.

Although Nginx's Gzip compression function is easy to use, it is not recommended to enable this compression function for the following two types of file resources.

1) Image type resources (and video files)

Reason: Pictures such as jpg and png files are compressed themselves, so even if gzip is turned on, there is not much difference in size before and after compression, so turning it on will waste resources. (You can try compressing a jpg image into zip and observe that the size does not change much. Although the zip and gzip algorithms are different, it can be seen that the value of compressing images is not great)

2) Large file resources

Reason: It will consume a lot of CPU resources and may not have obvious effects.

Summarize

This is the end of this article about enabling gzip compression in nginx. For more information about enabling gzip compression in nginx, please search previous articles on 123WORDPRESS.COM or continue to browse the related articles below. I hope you will support 123WORDPRESS.COM in the future!