Thunder Page Speed Optimizer
- Pricing
-
Free plan available. Free trial available.
- Rating
- 4.9 (74)
- Developer
- Enigma Apps
Featured images gallery
Boost store speed, AI SEO visibility, and LLMs discovery. Monitor pages and optimize safely.
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.
- See and track page-level Core Web Vitals based on real shopper visits.
- Find slow pages, SEO barriers, and content AI agents may struggle to access.
- Improve website speed with CSS, third-party scripts, and image optimizations.
- Control lazy loading, predictive preloading, and page-slowing scripts.
- - Preview every optimization safely before publishing to your live store.
Languages
English
Works with
- Shopify Admin
- Chrome UX Report
- Core Web Vitals
- Google Lighthouse
- Google PageSpeed Insights
- GTMetrix
- Web Page Test
Categories
SEO tools
Monitoring performance
Pricing
Choose the plan that best fits your business.
Free Plan
Free
Features
- Basic Optimizations
- Email Support
Advanced
$19.99 / month
or $180/year and save 25%
$29.99/m or $270/year for Advanced, $39.99/m or $360/year for Plus
Features
- Responsive Images + Image compression
- Stop apps from slowing your store
- Defer JS, CSS & 3rd-party apps scripts
- Lazy-load offscreen images
- Critical CSS
- Predictive Link Preloading
- Auto-optimize on theme updates
- Daily Lighthouse score tracking
7-day free trial
Visitor Insights
$69 / month
or $621/year and save 25%
$10 per additional 100,000 pageviews
Features
- 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
- Core Web Vitals: LCP, CLS, INP
- All optimizations included
7-day free trial
AI Agent
$199 / month
or $1,791/year and save 25%
Features
- Includes Performance Insights
- Powered by Claude Opus & GPT-5.6
- Automatically optimize Core Web Vitals
- Automatically fix theme issues
- Detect regressions within hours
- Priority Hands-On Support
All charges are billed in USD. Recurring and usage-based charges are billed every 30 days.
Reviews (74)
Excellent speed optimization app. It improved my page loading time without any complicated steps. Highly recommended for Shopify owners.
Thunder is simple to use and does a great job optimizing performance. My store feels faster and the support team is helpful.
Amazing app! Easy to set up, highly intuitive, and works flawlessly. It has significantly improved my store's performance. Highly recommended.
Support
App support provided by Enigma Apps.
Resources
Developer
Launched
May 27, 2022
Data access
This app needs access to the following data to work on your store. Learn why in the developer's privacy policy .
View staff and contributor data:
Store owner, blog contributors
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Store owner
Name, email address, phone number, physical address
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Blog contributors
Email address, IP address, browser and operating system
View and edit store data:
Products, Online Store
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Edit products
Products, collections
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Edit Online Store
Online Store pages, theme
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Edit other data
Online Store navigation
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