PerformanceMedium

Too many third-party scripts on your WordPress site

A high number of JavaScript scripts from third-party domains was detected. Each third-party script adds an extra network connection and JavaScript to execute.

Why it matters

Third-party scripts are outside your control: they can be slow, crash, or load other scripts themselves. They are frequently the main cause of high TBT.

How to fix

  1. 1

    Audit the impact of each third-party script

    Chrome DevTools → Network → filter by domain → identify which script loads what. PageSpeed Insights also lists third-party scripts and their estimated impact.

  2. 2

    Load third-party scripts in a deferred way

    php
    // Via WP Rocket: Settings → File Optimization → "Delay JS"
// Via wp_enqueue_script with strategy 'defer'
wp_register_script('mon-script', $src, [], $ver, ['strategy' => 'defer']);
  3. 3

    Host Google Analytics locally (GDPR + perf)

    The CAOS plugin (Complete Analytics Optimization Suite) downloads and hosts Google Analytics on your server, eliminating the external connection and improving performance.

  4. 4

    Delay chat and non-essential widgets

    Chat widgets, ads and tracking pixels can be loaded only on the first scroll or first user interaction.

Related articles

PerformanceTBT (Total Blocking Time) too highPerformanceRender-blocking scripts in the WordPress <head>PerformanceBrowser cache misconfigured on WordPress

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