Best SEO Checklist
ONE FOCUSED ACTION

Remove or limit unnecessary third-party scripts and plugins.

Website performance SEO

1 checklist items

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    Why this matters

    Excessive third-party scripts increase main thread blocking, delaying interactivity and harming Core Web Vitals.

    A STARTING-POINT EXAMPLE

    Hypothetical standard operating procedure

    Adapt this example to your site, access, tools, and change process. It is our suggested procedure, informed by the sources below.

    1. Inventory all third-party scripts and plugins installed on the site.
    2. Evaluate necessity and impact of each on performance and SEO.
    3. Remove unused or low-value scripts entirely.
    4. Defer loading of non-essential scripts until after critical page rendering.
    5. Monitor page speed and interaction metrics to track improvement.

    Watch for

    Too many analytics, chat widgets, or ad trackers degrade page speed and user experience.

    Definition of done

    Third-party scripts account for less than 30% of main-thread time with no critical path blocking.

    Sources & attribution

    1. Website Speed Audit Checklist for Better Google Rankings ↗
    2. Website Audit Checklist ↗

    Original checklist wording and example SOP by Best SEO Checklist, using source-grounded AI assistance. Editorial contact: Ted Kubaitis, @tedkubaitis on Teams. Check current source guidance before implementation.