In WordPress, we can see minify/combining option comes with many caching plugins, as well as there are separate special plugins for it. Many testing tools say that “Reduce HTTP Request”, that encourage us to shift toward a plugin which combines CSS and JS in the few file. However, there is disadvantage of doing so. The industry is talking about, unfortunately, many people are still not aware. So, I thought to share the top 5 facts which you need to know.
It’s age of HTTP/2, forget about old-school HTTP 1.1 approach where combining CSS and JS used to be helpful. If you are using HTTP version site, then combining CSS makes sense but if you are on HTTPS chances via host or CDN you might be already using HTTP/2 which has capability to load multiple Files at once.
Every time we purge, for Minify Plugin, it increases CDN Edge Cache ‘MISS’ response. What does it mean? You force CDN to fetch another version of the new file. That cost loss of Browser cache and Bandwidth.
Every time we purge, it encourages chances of another 404 for Search Engine crawlers.
Minify and Combine approach with HTTP/2 may improve any testing score, not significant load time.
Special plugin which offers such feature may increase usage of CPU Load, Disk size. It’s better to think forward.
Learn in detail
Check if a website supports HTTP/2
Thanks & Regards,