Thunder Page Speed Optimizer icon

Thunder Page Speed Optimizer

Built for Shopify

by Enigma AppsPartner

Improve website speed with real-user Core Web Vitals, image optimization, lazy loading, script controls, technical SEO, and AI discovery.

4.9(63 reviews)· Free plan available
Real user monitoring for live storefront page speed insgihts
Technical SEO and AI-agent readiness audit For Shopify
Prioritized technical SEO fixes and guided workflow for Shopify
Script management, critical CSS and lazy loading controls
Safe storefront optimization with preview and publishing control

About this app

Keep your store speed fast, easy to discover, and ready for AI / LLMs. Thunder continuously monitors how real shoppers experience every page and proactively optimizes slow pages, images, CSS, navigation, and third-party scripts. It identifies delayed clicks, layout shifts, broken links, and hard-to-crawl content, then prioritizes what needs attention. Automatic image compression, ongoing monitoring, and safe previews help maintain performance without constant manual work.

Pricing

Free Plan

Free

  • Basic Optimizations
  • Email Support

Advanced

$19.99 /mo

  • Responsive Images + Image compression
  • Stop apps from slowing your store
  • Defer JS, CSS & 3rd-party apps scripts
  • Lazy-load offscreen images
  • Critical CSS

Visitor Insights

$69 /mo

  • Core Web Vitals from your real visitors
  • Page-by-page Core Web Vitals breakdown
  • Track theme changes vs performance
  • Actionable fix suggestions
  • 500K visitor pageviews included

AI Agent

$199 /mo

  • Includes Performance Insights
  • Powered by Claude Opus & GPT-5.6
  • Automatically optimize Core Web Vitals
  • Automatically fix theme issues
  • Detect regressions within hours