Clear the cache

Purge the right layer rather than all of them, and know what a full purge costs.

Start with the narrowest purge that could fix what you are seeing.

One page

Sites → Cache → Purge URL. Paste the full address. This is the right tool when a single page shows stale content.

The whole site

Sites → Cache → Purge everything. Every page is rebuilt on next request, so the first visitor to each page waits for PHP. On a large site, expect a few minutes of higher load.

The object cache

Flush it when a plugin setting refuses to change, or after editing options directly in the database.

wp cache flush
wp transient delete --all

Still seeing the old version?

1. Check in a private window

   This eliminates your own browser cache, which no server-side purge can clear.

2. Check the response header

   curl -I shows whether the copy you received was a cache hit.

3. Check for a second proxy

   Your own Cloudflare account in front of ours has its own cache and needs its own purge.

curl -sI https://example.com | grep -i 'cache\|age'