Support » Plugin: SiteGround Optimizer » WebP images and Cloufare

  • Resolved connde


    Hi, I was checking a blog post ( a comment on June 9th from SG:
    “…In the next SG Optimizer version we will completely rework our WebP mechanism so it works fine even with such services as CF.”

    Can you comment the status on that?
    When I enable WebP I get this message from the plugin:
    “If you’re using CloudFlare or other CDN provider, please keep this optimization disabled and check if you can have WebP enabled by your CDN provider.”

    So I assume WebP is not working with Cloudfare Free CDN integration that SG provides and I shouldn’t enable Cloudfare free integration, is that right?

    • This topic was modified 1 year, 1 month ago by connde.
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  • Plugin Author Hristo Pandjarov


    SiteGround Representative

    No, we’re not working on fixing this because Cloudflare are not able to distinguish between the content types.

    This said, Safari 14 will soon start supporting WebP on a massive scale which will eliminate the issue.

    Thread Starter connde


    Thanks Hristo for the info.

    Do you have a recommendation of the best way to go on CDN vs WebP images? I’m thinking that CDN might be better fit.


    If you’re using Cloudflare, activate Polish and check the box titled, WebP, as shown here.

    Once you activate Polish and WebP, Cloudflare will convert your website images to the WebP format and deliver them to compatible web browsers.

    For more details on Cloudflare’s WebP feature, click here.

    To confirm that your images are being delivered in WebP format, perform a test. Test results will look like this.

    The choice is yours to use either a CDN or convert your images to the WebP format. If you have the time, yes, convert them. If not, let Cloudflare do the work.

    For more information on WebP browser compatibility, click here, here, and here.


    Thread Starter connde


    Thanks, I was thinking about using free version of CloudFare, but now I also noticed that WebP wasn’t been served to Safari even without CDN, so for now I will turn off WebP from SG and wait for a better time.


    Personally, I recommend using Cloudflare. Free or Pro Plan should do. CF will serve WebP images to compatible browsers.

    Also, keep in mind that not every person or business may have up-to-date browsers so if you convert your images to WebP (in lieu of using a CDN), your images may appear broken on their browser.


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