For an online store, one of the most important aspects is the loading speed. And here, it is important not only how fast a server returns a page to a client (TTFB), but also, how quickly the client can download this page and all related resources (files js, CSS, images, fonts).
The loading speed is one of the most significant factors which affects the SERP ranking in search engines (Google, Bing, etc).
The faster a server generates the page and a client downloads it, the higher your site is in the search results at all the other factors being equal.
During several years we have been studying and implementing various approaches to improve the speed of the store server-side and frontend side.
Today we use a few different approaches to achieve acceptable performance:
- Google PageSpeed Module - described below
- Google PageSpeed Optimizer - frontend optimization
- Page Cache Warmer - improve the cache hit rate
- pngquant - images optimization
Google PageSpeed Module
Google PageSpeed module is not healing, rather a big step.
And for Magento 2, it is more relevant than ever. i.e. for the frontend part operation, it is necessary to upload a huge amount of js, CSS, files, images and other resources.
What does the Page Speed module do?
The main task of the module is to optimize resources that are loaded by a client’s browser.
Right after installation and basic setting up it starts operating and step by step uses different techniques that are recommended by Google PageSpeed Insight:
- optimize images
- defer JS
- minify/merge JS/CSS
- extend resources cache
How does it work
PageSpeed and Magento 2 - proven configuration
After pagespeed module installation on a server, it is necessary to configure it Nginx or Apache.
There is an example of a working configuration based on Nginx below:
If the installation and set up went fine, restart Nginx and then, all pages will include header X-Page-Speed:
PageSpeed Module Result for Magento 2 Store
It is allowed to use the embedded web interface for extension operation monitoring, that is accessible with the following link https://yourstore.com/pagespeed_admin
In the next few hours, you can see the optimization results
In our case, the volume of the optimized (compacted) files (images, CSS, js) is measured with gigabytes.
PageSpeed module can not solve all the issues related to the store speed, but it significantly speeds up its operation. It allows you to improve page speed rating for your store quickly and safely and to decrease the time, customers spend on page loading.
Also, you can significantly improve average response time for all store visitors with Magento 2 Full Page Cache Warmer extension.