Support » Plugin: Async JavaScript » Improved PageSpeed Score but not the Fully Loaded Time in GTmetrix

  • wrip

    (@wrip)


    I was playing with this plugin. In GTmetrix, it seems to improve the PageSpeed Score (from 87% to 91%) but the Fully Loaded Time hasn’t made much difference.

    I tried both async and defer for javascript and jQuery was set to ‘Excluded’.

Viewing 3 replies - 1 through 3 (of 3 total)
  • Plugin Author Optimizing Matters

    (@optimizingmatters)

    Fully loaded is pretty irrelevant, look at “first paint” and “onload” instead?

    Thread Starter wrip

    (@wrip)

    @optimizingmatters
    Here are some details.

    With Async Javascript disabled:
    PageSpeed Score: 87%
    Fully Loaded Time: 12.5s
    TTFB: 3.3s
    First Paint: 5.9s
    Onload: 10.5s (4ms)

    With Async Javascript enabled:
    PageSpeed Score: 91%
    Fully Loaded Time: 14.4s
    TTFB: 3.3s
    First Paint: 7.2s
    Onload: 12.3s (5ms)

    • What is the difference between Fully Loaded Time and Onload?
    • Isn’t Javascript defer supposed to reduce the TTFB as well?
    • What is the value inside the brackets in Onload?
    • This reply was modified 1 year ago by wrip. Reason: added a new question
    Plugin Author Optimizing Matters

    (@optimizingmatters)

    well, if I were you I would not use AsyncJS in that case 🙂

    TTFB is not impacted by how JS (or CSS) is loaded no.

    re. fully loaded vs onload see https://gtmetrix.com/faq.html#faq-fully-loaded-vs-onload 🙂

    frank

Viewing 3 replies - 1 through 3 (of 3 total)
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