{"id":11960,"date":"2026-08-05T06:00:00","date_gmt":"2026-08-05T11:00:00","guid":{"rendered":"https:\/\/infiniteuploads.com\/?post_type=docs&p=11960"},"modified":"2026-08-05T06:00:00","modified_gmt":"2026-08-05T11:00:00","password":"","slug":"purging-the-cdn-cache-after-changing-settings","status":"publish","type":"docs","link":"https:\/\/infiniteuploads.com\/docs\/image-optimization\/purging-the-cdn-cache-after-changing-settings\/","title":{"rendered":"Purging the CDN Cache After Changing Settings"},"content":{"rendered":"\n

Optimized images are cached across our CDN for performance, so a change to your Image Optimization settings applies to each image the next time it's requested and re-cached. If you want your new settings to apply to images that are already cached right away, use the Purge CDN Cache<\/strong> button.<\/p>\n\n\n\n

When you'd use it<\/h2>\n\n\n\n
\n
You changed your optimization level, max width, or formats<\/strong> and want the new setting to take effect on already-viewed images immediately, rather than as they naturally re-cache.<\/li>\n\n\n\n
You added an exclusion<\/strong> and want a previously optimized image to revert to its original now.<\/li>\n\n\n\n
You replaced an image<\/strong> at the same filename and want the old cached copy cleared.<\/li>\n<\/ul>\n\n\n\n
If you're happy for changes to roll out gradually as pages are visited, you don't need to purge at all. It happens on its own.<\/p>\n\n\n\n
How to purge<\/h2>\n\n\n\n
The Purge CDN Cache<\/strong> button is in the top-right of the settings header, next to the \"Updated … ago\" timestamp in the Infinite Uploads plugin dashboard. Click it and confirm.<\/p>\n\n\n\n
$Screenshot of a webpage header with \"Account & Settings\" and \"Purge CDN Cache.\"$
Purge CDN Cache button in the settings header<\/figcaption><\/figure>\n\n\n\n
That's it. We clear the cached copies of your files across the CDN. Your images then rebuild automatically with your current settings the next time each one is visited.<\/p>\n\n\n\n
\n
Note: Because a purge makes the CDN re-fetch every file, the very first view of each image afterward may be slightly slower while the optimized copy is rebuilt and re-cached. This is brief and normal.<\/p>\n<\/blockquote>\n\n\n\n
Once per hour<\/h2>\n\n\n\n
Purging is limited to once per hour. A full purge asks the CDN to rebuild everything, so running it back-to-back would only slow your site down for no benefit. If you click it again too soon, you'll see a message asking you to wait. That's expected.<\/p>\n\n\n\n
Where's the button?<\/h2>\n\n\n\n
The Purge CDN Cache<\/strong> button appears when your site is on a business plan and Image Optimization is enabled. If you don't see it, confirm both:<\/p>\n\n\n\n
\n
You're on a business plan<\/strong> (Image Optimization is a business-plan feature).<\/li>\n\n\n\n
Enable Image Optimization<\/strong> is set to Yes<\/strong> and saved.<\/li>\n<\/ul>\n\n\n\n
See Enabling Image Optimization<\/a> to turn it on.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"
Optimized images are cached across our CDN for performance, so a change to your Image Optimization settings applies to each image the next time it’s requested and re-cached. If you want your new settings to apply to images that are already cached right away, use the Purge CDN Cache button. When you’d use it If […]<\/p>\n","protected":false},"author":3787,"featured_media":0,"template":"","meta":{"_acf_changed":false,"wds_primary_doc_category":0,"wds_primary_doc_tag":0,"footnotes":""},"doc_category":[171],"doc_tag":[],"class_list":["post-11960","docs","type-docs","status-publish","hentry","doc_category-image-optimization"],"acf":[],"year_month":"2026-08","word_count":347,"total_views":"59","reactions":{"happy":"0","normal":"0","sad":"0"},"author_info":{"name":"Blake Whittle","author_nicename":"blakew","author_url":"https:\/\/infiniteuploads.com\/blog\/author\/blakew\/"},"doc_category_info":[{"term_name":"Image optimization","term_url":"https:\/\/infiniteuploads.com\/docs-category\/image-optimization\/"}],"doc_tag_info":[],"knowledge_base_info":[],"knowledge_base_slug":[],"_links":{"self":[{"href":"https:\/\/infiniteuploads.com\/api\/wp\/v2\/docs\/11960","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/infiniteuploads.com\/api\/wp\/v2\/docs"}],"about":[{"href":"https:\/\/infiniteuploads.com\/api\/wp\/v2\/types\/docs"}],"author":[{"embeddable":true,"href":"https:\/\/infiniteuploads.com\/api\/wp\/v2\/users\/3787"}],"version-history":[{"count":4,"href":"https:\/\/infiniteuploads.com\/api\/wp\/v2\/docs\/11960\/revisions"}],"predecessor-version":[{"id":12010,"href":"https:\/\/infiniteuploads.com\/api\/wp\/v2\/docs\/11960\/revisions\/12010"}],"wp:attachment":[{"href":"https:\/\/infiniteuploads.com\/api\/wp\/v2\/media?parent=11960"}],"wp:term":[{"taxonomy":"doc_category","embeddable":true,"href":"https:\/\/infiniteuploads.com\/api\/wp\/v2\/doc_category?post=11960"},{"taxonomy":"doc_tag","embeddable":true,"href":"https:\/\/infiniteuploads.com\/api\/wp\/v2\/doc_tag?post=11960"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

Once per hour<\/h2>\n\n\n\nPurging is limited to once per hour. A full purge asks the CDN to rebuild everything, so running it back-to-back would only slow your site down for no benefit. If you click it again too soon, you'll see a message asking you to wait. That's expected.<\/p>\n\n\n\n

Once per hour<\/h2>\n\n\n\n
Purging is limited to once per hour. A full purge asks the CDN to rebuild everything, so running it back-to-back would only slow your site down for no benefit. If you click it again too soon, you'll see a message asking you to wait. That's expected.<\/p>\n\n\n\n