Bad LCP metric because of of render-blocking resources

  • Resolved seojedi2018

    (@seojedi2018)


    3 years, 10 months ago

    Hello,

    So I am trying to optimise the mobile Web Vitals of this website by running the Lighthouse audit. Currently my mobile score is 47.
    The worse numbers come from the LCP and the TTI.

    I get 10.4s for LCP and around 11.1 for TTI, but I want to focus to the LCP and to the render-blocking resources, that I need to eliminate or fix.

    The lighthouse audit is mentioning the siteground-optimiser-combined-css for 2 problems:
    1) Eliminate render-blocking resources 1.47s
    2) Remove unused CSS 0.3s

    By checking the Coverage tab I see that the siteground-optimiser-combined-css is the biggest item with 84.5% os Unused bytes.

    What is the proposed course of action?

    The page I need help with: [log in to see the link]

Viewing 2 replies - 1 through 2 (of 2 total)
  • Plugin Author Stoyan Georgiev

    (@stoyangeorgiev)

    Hey there @seojedi2018,

    The siteground-optimiser-combined-css is containing all of the CSS files you are loading on your page, meaning that reduces the server requests.

    Disabling this will make more requests (as many as CSS files you have) to the server and it will actually reduce your score.

    I would recommend leaving it as it is.

    Another approach is to reduce the CSS that is loaded and then this will reduce the size of the combined file.

    Kind Regards,
    Stoyan

    Thread Starter seojedi2018

    (@seojedi2018)

    Hi Stoyan and thank you for your reply.

    The problem is that the siteground-optimiser-combined-css is not controlled by me. It’s a plugin that is doing one specific task and it seems that is not optimised as it should.
    This website is not heavy or including hundreds of photos, so to include so many unused bytes, it only shows that the plugin is misbehaving.

    Also, to reduce the CSS that is causing the issue for the siteground-optimiser-combined-css is something that is not clear.
    How could I know which CSS is the culprit?

Viewing 2 replies - 1 through 2 (of 2 total)
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