Prerender.io NGINX Configuration File

nginx.conf

# For more information on configuration, see:
# * Official English Documentation: http://nginx.org/en/docs/
# * Official Russian Documentation: http://nginx.org/ru/docs/

user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /var/run/nginx.pid;

# Load dynamic modules. See /usr/share/doc/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;

events {
    worker_connections 1024;
}

http {
    log_format  main  '$remote_addr - $remote_user [$time_local]    "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';
                      
    access_log  /var/log/nginx/access.log  main;
    
    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 2048;
    
    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;
    
    # Load modular configuration files from the /etc/nginx/conf.d     directory.
    # See http://nginx.org/en/docs/ngx_core_module.html#include
    # for more information.
    include /etc/nginx/conf.d/*.conf;
    
    index   index.html index.htm;
    
    server {
        listen       80 default_server;
        listen       [::]:80 default_server;
        server_name  YOUR_SITE_GOES_HERE.com;
        root         /var/www/html/;

        # Load configuration files for the default server block.
        # include /etc/nginx/default.d/*.conf;
        location ~*  \.(jpg|jpeg|png|gif|ico|css|js|woff|svg)$ {
            expires 365d;
        }

        location / {
            try_files $uri @prerender;
        }

        location @prerender {
            proxy_set_header X-Prerender-Token YOUR_TOKEN_GOES_HERE;
            set $prerender 0;
    
            error_page 404 =200 /index.html;

            if ($http_user_agent ~*   "googlebot|baiduspider|twitterbot|facebookexternalhit|rogerbot|linkedinbot|embedly|quora link preview|showyoubot|outbrain|pinterest|slackbot|vkShare|W3C_Validator")          {
                set $prerender 1;
            }

            if ($args ~ "_escaped_fragment_") {
                set $prerender 1;
            }

            if ($http_user_agent ~ "Prerender") {
                set $prerender 0;
            }

            if ($uri ~ "\. (js|css|xml|less|png|jpg|jpeg|gif|pdf|doc|txt|ico|rss|zip|mp3|rar|exe|wmv|doc|avi|ppt|mpg|mpeg|tif|wav|mov|psd|ai|xls|mp4|m4a|swf|dat|dmg|iso|flv|m4v|torrent|ttf|woff)") {
                set $prerender 0;
            }

            #resolve using Google's DNS server to force DNS resolution and prevent caching of IPs
            resolver 8.8.8.8;

            if ($prerender = 1) {
                #setting prerender as a variable forces DNS resolution since nginx caches IPs and doesnt play well with load balancing
                set $prerender "service.prerender.io";
                rewrite .* /$scheme://$host$request_uri? break;
                proxy_pass http://$prerender;
            }

            if ($prerender = 0) {
                rewrite .* /index.html break;
            }
        }
    }
}

This is an alteration of the standard nginx.conf which should come automatically with your EC2 instance.

You just need to replace YOUR_SITE_GOES_HERE.com in the server#root value and YOUR_TOKEN_GOES_HERE in the X-Prerender-Token header. Then you should be good to go.

Feel free to leave constructive comments and/or improvements. Happy to improve on this!

Worked for me 👍
Thank you!