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swiftstore
Scan, fix, and monitor your store PageSpeed score automaticall
by Thriftizer · Launched: June 2026
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About swiftstore
SwiftStore scans your Shopify theme and identifies every factor slowing down your store. It detects render-blocking scripts, oversized images, unused CSS, and slow third-party app scripts. Once issues are found, you can preview fixes in a safe sandbox before applying them to your live store. The app runs image compression, script deferral, font preloading, and critical CSS extraction automatically. A Core Web Vitals monitor tracks your LCP, CLS, and INP scores over time. Works on all Online Stor AI theme scanner finds render-blocking scripts, unused CSS, and oversized images Sandbox preview shows before-and-after scores before any change goes live One-click fixes for image lazy loading, JS deferral, font preloading, and more Core Web Vitals monitor tracks LCP, CLS, and INP with 30-day history App performance audit shows which installed apps are slowing your store down Show more Show less
Last verified: July 22, 2026 · Fresh
App details
- Developer
- Thriftizer
- Category
- Store design
- Pricing
- Paid
- Launched
- June 2026
- Rating
- 0.0 on Shopify
Key features
- Image lazy loading and WebP conversion
- CSS and JS minification
- Browser caching
- App script deferral for up to 5 apps
- A PageSpeed score dashboard
Shopify Admin
3 plans · 7-day free trial
Basic
$9/month
Grow
$28/month
Pro
$49/month
Plans and prices as listed on the Shopify App Store.
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