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If you uninstall it via WordPress > Plugins menu Swift Performance will remove everything, so probably it is not related to Swift.

May the uninstall process timed out, or there was an other issue which broke it. In this case simply remove swift-performance directory via FTP in wp-content/plugins

Probably your security plugin blocks the request, see more: https://docs.swiftperformance.io/knowledgebase/403-error-occurs-when-save-settings/

Please be sure that cache path is correct.

You can click to reset to default to find the cache dir automatically: https://www.evernote.com/l/Aa6aEcOm46BCJZhuMdwW7oIOnrW0DDt0bb8

If you disabled WP Cron than it can happen that expired cache is not cleared properly.

However if crons are running, then cache should be cleared when it expires. If you use action based mode, then cache will be cleared only if post/page were updated, or stock has been changed for a product, etc.

Alternatively you can use a clear cache cron:
https://pastebin.com/1QkYBNHj

Probably you enabled logged in cache and shared logged in cache, or you are using Cloudflare Proxy caching, then it is the excepted behavior.

You should activate debug logs only for debugging. Logs are limited to 1000 lines by default (you can change this with SWIFT_PERFORMANCE_MAX_LOG_ENTRIES constant).

If you are not debugging you should disable logging.

Probably there is a js issue. Here is a short video to find and fix js issues: https://www.youtube.com/watch?v=DfzgLIAkIbQ

Please add subsites directories to Exclude URLs in Caching > Exceptions

https://www.evernote.com/l/Aa78WwzM02ZAe5813-r6yYq3DPHB0kmigoU

There is no known issue with PHP 8. Please check the PHP error log to see what is the exact issue.

Probably there is a javascript issue. Please remove the exclusions and check the page again to find the original issue.

Here is a short video to find and fix js issues: https://www.youtube.com/watch?v=DfzgLIAkIbQ

Actually utm parameters are ignored by default, so you should get the cached version. However if you have any custom query string what you would like to exclude you can add them to Ignore GET params in Caching > Tweaks settings

These query strings are ignored by default: utm_source, utm_campaign, utm_medium, utm_expid, utm_term, utm_content, fb_action_ids, fb_action_types, fb_source, fbclid, _ga, gclid, age-verified

Delay scripts will delay all scripts until the first user interaction, however Smart delivery will load the scripts in the right order with automated timing. See more: https://docs.swiftperformance.io/knowledgebase/smart-javascript-delivery/

Hi,

You can check your config and get recommendations here: https://swiftperformance.io/support-center/#recommendations

It seems you linked the same image for the with/without merge scripts ??

However probably there is a javascript issue. Here is a short video how can you find and fix js issues: https://www.youtube.com/watch?v=DfzgLIAkIbQ

We are going to check the issue, however for a quick fix you can do the following:

You can add multiple CDN hosts, separate for CSS, JS, and media. Simply add the original host (eg: yourdomain.com) for CSS and JS and add the cdn host to media.