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How to speed up the loading of images from a subdomain? – CPanel

I have a very strange problem with a website: for some unknown reason it loads very slow some images.

For example: There are 16 images to load ( each image is .jpg, around 10k ) and every time 3-4 of this images are (random) loaded in 4-5 seconds and all others in a good time 600ms.

Is insane that to load 30-40k of 3-4 images the Waterfall is >= 15s by considering also that the domain is SSL, have CloudFlare active and is running on a good dedicated server with cPanel.

Are several days that I’m trying to find a solution and I have already: try to disable cloudflare, try to load the images from a subdomain, try to compress the images, try several .htaccess settings.

Regarding lazyload, in this case it can’t help me because all 16 images are in the browser view ( like the youtube homepage )

GTMetrix report ID: cA72pYL1

Any suggestion is good, thank you a lot.

— Additional informations and tests —

  • Using cPanel – Apache
  • To load an image of 10k now the average is around 0.7s
  • Any error log ( web/server side )
  • The rest of website/server load without problems
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2

Answers


  1. 0

    Have you considered using base 64 images ?

    Go to : https://www.base64-image.de/

    Upload your image and it will give you the base64

    replace the src of your images like :

    <img src="example.png">

    with

    <img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAADSCAMAAABThmYtAAAAXVB">

    here’s an explination of what that is : Base64 encoding images

    When to Base64 Encode Images (and When Not To)

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  2. 0

    How does the rest of your site perform? You’ve tried several things from the image perspective, what about looking at the site perspective?

    • Check your logs (web and system) – any errors?

    • Are other aspects of your site performing as expected? Page loads, form submission…If not then the images may not be the root issue.

    • Did you make any changes recently? Have these images always loaded this way, or was there a time when they loaded consistently?

    • Is it always the same images that load more slowly? If so, then investigate what is different with those files.

    • Or, is it always the same time span (from start of loading images to moment of slow down) when the loading slows down? If so, investigate your caching, buffering, network & bandwidth settings.

    I don’t know if this is possible, but can you try loading these images on a different web server? (Trying to eliminate possibilities here.)

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