Watch Out For This NGINX Quirk!

June 16, 2021

NGINX has a nasty little quirk with its add_header directive that can easily bite you in a$$ if you’re not careful. Put simply, if you use even a single add_header directive in a location block, it will remove all add_header directives from higher in the tree. Practically speaking, you could run into a situation as follows: You have a series…

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The Five Levels of Caching In WordPress

April 9, 2020

id you know that there are 5 different places that caches can exist in any given WordPress installation? Not all installs use all levels but understanding where they are and why they’re there can help you in troubleshooting some thorny issues that caches can cause.

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