The reason they exist.
THE PRINCIPLE
Shared hosting means many accounts on one server.
Limits prevent one account consuming everything and affecting the rest.
WHAT THIS PROTECTS
Your site, from someone else's runaway process Everyone else, from yours
WHAT IS LIMITED
Processor time Memory Simultaneous requests Disk operations Number of files Disk space Bandwidth
WHY YOU SHOULD CARE
Hitting a limit produces errors your visitors see.
Frequently intermittent, which makes it confusing.
WHAT USUALLY CAUSES IT
No caching Bot traffic A heavy plugin A scheduled job at a bad time
Rarely genuine popularity, on a small site.
WHERE TO SEE YOUR USAGE
cPanel shows usage against each limit.
Check it before assuming you need a larger plan.
