I have a site. I tested it in Google Pagespeed Insights and it gave me some suggestions. I changed the issues. I deleted some files. But it's still showing the same result and giving the same suggestions. Gtmetrix is showing the changes, but Google Pagespeed Insights is not. Can anyone tell me what is the reason? Site Link: https://www.galpal.co.uk/
You are getting this error because the file is still referenced in the HTML.
Because the browser doesn't know that you have deleted the file off your server it still makes the request as you left a reference to it in your HTML.
Even thought the file returns 404 not found there is still a request made for the file. At this point that is something that will block rendering of the above the fold content.
Remove the reference in your HTML (remove the <script>
element referencing the file) and Page Speed Insights will reflect the change.
To be clear GT Metrix is wrong here and Page Speed Insights is correct.
ps - you should add defer
attribute (or async
but that is more difficult) to your scripts
<script src="yourJavaScriptFile.js" defer></script>
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