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You update a price, publish, check the site, and see the old figure. Then a colleague sees the new one while a customer insists on the old. This is caching — several layers of the internet keeping copies of your pages to serve them faster — and understanding the layers turns a maddening problem into a two-minute fix.
What matters here
- Multiple layers hold copies — your browser, a site plugin, the server, and a CDN.
- Clear from the site outward — plugin and server first, then the CDN, then your browser.
- Test in a private window — it bypasses your own browser cache and tells you the truth.
- Caching is desirable — the aim is controlling it, not disabling it.
The main options
Work outward. If you are on managed WordPress hosting, caching happens at both plugin and server level and both need clearing after significant changes. If you use a CDN, purge it too, since it holds copies closer to your visitors than your server does. Then check in a private browsing window before concluding anything, because your own browser is the most likely culprit and the least likely to be suspected. On builder-based sites publishing usually handles this automatically, which is one of the quieter conveniences of that route.
A caution before you disable caching
The temptation after an afternoon of confusion is to switch caching off entirely. Do not — it is what allows a modest hosting plan to serve traffic quickly, and disabling it trades a minor annoyance for permanently slower pages. Learn where the clear buttons are instead; it is a five-minute lesson that lasts for the life of the site.
How to choose
Build the habit into your update routine: make the change, clear the caches, verify in a private window, then ask someone else to confirm. For anything commercially sensitive — prices, offers, opening hours — that verification step is worth the extra minute, because the version customers see is the only version that matters.