Leveraging caching

This time, I'm going to leverage browser caching.

Open server block file

sudo nano /etc/nginx/sites-available/mydomain.com

Then add these blocks

# Expires map
map $sent_http_content_type $expires {
    default                    off;
    text/html                  epoch;
    text/css                   max;
    application/javascript     max;
    ~image/                    max;
}

expires $expires;

Your file would look like this

# Expires map
map $sent_http_content_type $expires {
    default                    off;
    text/html                  epoch;
    text/css                   max;
    application/javascript     max;
    ~image/                    max;
}

server {
    listen 80 default_server;
    listen [::]:80 default_server;

    expires $expires;
. . .

Test

sudo nginx -t

Restart nginx

sudo systemctl restart nginx

Done. Check the result with GTmetrix and PageSpeed Insights