Testing compression is really simple: for example, after connecting your WordPress site to Cloudflare and enabling Brotli compression , you can test whether it is working using KeyCDN's Brotli test tool .
GZIP vs Brotli: Which One to Choose?
Well, we have seen both compression methods together , those with GZIP and those with Brotli, we have examined their characteristics and now we are faced with the fateful question: which compression method do I choose for my website ?
In a research conducted by Akamai , one of the most famous philippines phone number list content-delivery companies, both compression methods were tested, they took a list with about 1000 URLs, downloaded the HTML, CSS, and JavaScript files, compressed them and here is the table with the data of the study.
Specifically, Akamai confirmed that Brotli shrunk HTML files by 21%, JavaScript files by 14%, and CSS files by 17% more than GZIP .
If you are tempted to choose Brotli right now, STOP! Stop for a moment because there is another factor to take into account. In fact, in addition to the percentage of file compression , you must also take into account the speed used to perform the reduction.
Akamai has verified that the compression speed depends on the level that is used , both for GZIP and Brotli, their performance improves depending on the level that is used .
the conclusion that Akamai came to is the following: by setting Brotli settings correctly, the compression speed can actually exceed that of GZIP , while still ensuring a significant reduction in files.
When looking at compression methods, it can be seen that both Brotli and GZIP are both very good and, in general, for the average WordPress user, there is no better option . What matters is that you use a compression method for your website .