Caching, cookies, and the quick fix.
The useful version is simpler than the jargon makes it sound. Here are the decisions, checks, and vocabulary that matter most.
01Browsers keep local copies
Your browser saves assets so repeat visits are faster. A hard refresh asks it to check again, while a private window can help separate browser cache from a logged-in WordPress session.
02Caches exist at several layers
WordPress, a performance plugin, the host, and a CDN may each cache output. Clear the narrowest relevant layer first instead of purging everything by habit.
03Publish with a repeatable check
After an important edit, verify the public page while logged out, test a second device, and confirm any form or link you changed. Document the cache-clearing path for the whole team.