I am the webmaster for http://onlinediamondbuyingguide.com and had done some tests to analyze page loading speed with the tools here.
Here are my results:
Is there a cause for concern for the varying timings that the page was downloaded?
Also, I can’t help but notice getting a F grade for “Cache static content”. The analysis shows quite a number of image files that should be cached. Is this something I can “turn on” or change from my server side or has this anything to do with the user’s computer settings?
Any advice is appreciated.
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Is there someway to force an update to the cached images? Like maybe remove that code when there’s an update to the website?
No, you need to change the actual file names for the browsers to re-request them. Hence:
You can mitigate it a bit by using a shorter cache expires time (a few hours) and just deal with the fact that they will be stale for that time.