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In 2012, Google released version 1.0 of their PageSpeed modules for NGINX and Apache. It has gone largely unnoticed since then. The short of PageSpeed is that if you add it to your web server, you can configure it to optimize anything passing through it using techniques such as minification, format conversion, and even injecting scripts to lazy-load images. You can read more about what it does on the official site.
It sounded great in theory, but how properly install it with NGINX wasn’t obvious. While Google does publish scripts to help with the installation, it requires a non-trivial depth of knowledge to do right. After struggling with it for many hours, I wrote a guide for personal future reference.
I recently returned to those notes to entirely automate the process using GitHub Actions. The work is open-source and available on GitHub.
Run the following as root on a Debian-based machine:
sudo su apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 8028BE1819F3E4A0 echo "deb https://nginx-pagespeed.knyz.org/dist/ /" > /etc/apt/sources.list.d/nginx-pagespeed.list echo "Package: *" > /etc/apt/preferences.d/99nginx-pagespeed echo "Pin: origin nginx-pagespeed.knyz.org" >> /etc/apt/preferences.d/99nginx-pagespeed echo "Pin-Priority: 900" >> /etc/apt/preferences.d/99nginx-pagespeed apt update apt install nginx-full # If NGINX is already installed, an `apt upgrade` works too echo "pagespeed on;" > /etc/nginx/conf.d/pagespeed.conf echo "pagespeed FileCachePath \"/var/cache/pagespeed/\";" >> /etc/nginx/conf.d/pagespeed.conf echo "pagespeed FileCacheSizeKb 102400;" >> /etc/nginx/conf.d/pagespeed.conf echo "pagespeed FileCacheCleanIntervalMs 3600000;" >> /etc/nginx/conf.d/pagespeed.conf echo "pagespeed FileCacheInodeLimit 500000;" >> /etc/nginx/conf.d/pagespeed.conf echo "pagespeed RewriteLevel CoreFilters;" >> /etc/nginx/conf.d/pagespeed.conf systemctl reload nginx
The installation process is explained more thoroughly on the GitHub page if you’re curious.
Once that is done, you will have an active NGINX + PageSpeed installation that will receive the same updates as upstream NGINX. You can learn more about individual filters that you can enable in the documentation.