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    Core Web Vitals Fixer for WordPress

    by Arnstein Larsen

    Diagnoses and fixes LCP, INP, and CLS on WordPress sites with a scored, prioritized action plan and runnable before→after code — including the non-obvious insight that consent-gated analytics loading is a measured CWV improvement, not just a GDPR requirement.

    Updated Jun 2026
    Security scanned
    Built for Claude Cowork

    $11.99

    · or 60 credits

    30-day refund guarantee

    Secure checkout via Stripe

    Included in download

    • Transform red PageSpeed scores into green using prioritized action plans
    • Implement Google Consent Mode v2 without hurting mobile LCP performance
    • terminal, network automation included
    • Ready for Built for Claude Cowork
    • Instant install

    Sample input

    My mobile LCP is 4.2s and PageSpeed says 'Preload LCP image'. I'm using a classic theme. How do I fix this?

    Sample output

    ### MODE: FIX **Finding:** Hero image not preloaded (Impact: 5, Effort: 1, Score: 25.0) Add this to your `functions.php`: ```php function theme_preload_hero_image() { if ( is_front_page() || is_home() ) { $hero_url = get_theme_mod('hero_image_url'); echo ''; } } add_action('wp_head', 'theme_preload_hero_image', 1); ``` **Verify:** `curl -s https://yoursite.com/ | grep 'rel="preload"'` should return the tag.

    About This Skill

    High-Performance Core Web Vitals Optimization

    This skill is a specialized diagnostic and remediation tool for WordPress developers facing failing Core Web Vitals (CWV). Unlike generic performance advice, it traces LCP, INP, and CLS issues directly to the WordPress/PHP/Browser stack using production-tested engineering patterns.

    What it does

    • DIAGNOSE: Analyzes PageSpeed Insights, CrUX data, or Lighthouse reports to generate a ranked root-cause list.
    • FIX: Delivers prioritized, runnable code patches for common WordPress bottlenecks like hero image discovery, render-blocking scripts, and layout shifts.
    • Consent-Aware Tuning: Implements advanced patterns for Consent Mode v2 and deferred analytics loading—solving the hidden LCP/INP drag caused by gtag.js.

    Why it's better than manual prompting

    Generalized AI models often suggest counter-productive fixes, like lazy-loading hero images or generic minification. This skill uses a strict 8-gate framework to prevent anti-patterns, calculates a ROI-driven "Action Score" (Impact²/Effort), and provides an objective 12-point acceptance checklist for verification.

    Supported Environment

    • WordPress (Classic & Block/FSE themes)
    • Common page builders (Elementor, Divi, Bricks)
    • Google Tag Manager and Analytics (GA4)
    • Consent Management Platforms (CMP)

    Use Cases

    • Transform red PageSpeed scores into green using prioritized action plans
    • Implement Google Consent Mode v2 without hurting mobile LCP performance
    • Eliminate Cumulative Layout Shift (CLS) from dynamic WordPress hero elements
    • Resolve high Interaction to Next Paint (INP) caused by heavy third-party JS

    Reviews

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    Only users who have downloaded or purchased this skill can leave a review.

    Security Scanned

    Passed automated security review

    Permissions

    Terminal / Shell
    Network Access

    Allowed Hosts

    example.com
    fonts.googleapis.com
    fonts.gstatic.com
    www.googletagmanager.com
    pagespeed.web.dev

    File Scopes

    core-web-vitals-fixer/**

    Tags

    wordpress
    performance
    core-web-vitals
    seo
    pagespeed
    lcp
    cls
    inp
    web-performance
    analytics
    consent-mode
    image-optimization
    font-optimization

    Built for Claude Cowork / Claude.ai (Claude Sonnet or Opus, high effort). Works with any SKILL.md-compatible agent; written for Claude's code-aware reasoning. Not optimized for ChatGPT or Gemini.

    Creator

    Arnstein Larsen

    Frequently Asked Questions

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