How much memory your account may use.
TWO DIFFERENT LIMITS
PHP memory limit: how much one script may use
Account memory limit: how much your account may use in total
THE SCRIPT LIMIT
Exceeded: a fatal error naming the limit and the file.
Adjustable in cPanel, within your plan's allowance.
THE ACCOUNT LIMIT
Exceeded: requests fail or are queued.
Usually caused by many simultaneous requests rather than one heavy script.
WHAT CONSUMES MEMORY
Each simultaneous request Large datasets loaded at once Image processing Plugins loading unnecessarily
HOW TO REDUCE IT
Caching, which means fewer requests reach PHP at all Fewer plugins Fixing anything loading large amounts of data
THE DIAGNOSTIC POINT
A single script exceeding memory names a file in the error log.
That identifies the responsible component.
WHAT NOT TO DO
Raise the script limit repeatedly without asking why.
