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Rocket Page Speed Optimizer

Pagespeed Booster Helps Optimize JS and Improve FCP, LCP, CLS.

by Urban Media · Launched: April 2021

3.6 (40) on Shopify Used by 476 Shopify stores

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Pagespeed optimizer that helps defer javascript & improve Google core web vitals - FCP CLS JS & LCP

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About Rocket Page Speed Optimizer

Automatic page speed optimizer improves your store's page speed on desktop and mobile devices. No coding is required. It also helps with Google's new core web vitals requirements by lazy-loading commonly used apps and analytics. Using this app takes care of Facebook Pixel Speed Optimization, Klaviyo Speed Optimization, Google Analytics / Tag Manager Speed Optimization, Intelligent Javascript Loading for Shopify Apps, and Live Chat Optimization with just one click. Includes 24x7 assistance. This app increases page speed on desktop and mobile devices automatically. This app improves Google's core web vitals metrics, such as LCP, FCP, and CLS. Includes an uninstall button to remove app code from your theme easily. Show more Show less

Last verified: July 15, 2026 · Fresh

App details

Developer
Urban Media
Category
Store design
Pricing
Paid
Launched
April 2021
Rating
3.6 (40) on Shopify

Key features

  • Core Web Vitals Optimization
  • Facebook Pixel & GA4 Optimization
  • Klaviyo Optimization
  • 3rd Party Javascript Optimization
  • LCP+Speed Score Boost
Integrations with:

Instagram Feeds, Klaviyo, Recaptcha, Rocket Image Optimizer, judge.me

1 plan · 7-day free trial

Core Web Vitals

$9/month

Plans and prices as listed on the Shopify App Store.

Ratings & reviews

based on 100 Shopify App Store reviews

Use the arrows to read individual reviews

I've been using this app for years, and it has improved my CWV scores. The customer service has been responsive and helpful as well.
— Guitars on Main
Meu tema customizado tinha problemas de velocidade que não conseguia resolver. Sam identificou o problema na hora e me deu uma correção perfeita. Suporte técnico excepcional!
— URBALOCK
La aplicación aumentó la velocidad de mi tienda, pero rompió el feed instantáneo. No es gran cosa, probé otra aplicación. Tampoco funcionó, así que me comuniqué con el soporte. Lo hicieron funcionar instantáneamente. Solo necesitaba agregar la aplicación instantánea a su lista. Buen día.
— ODEYSSA AVENUE
I was spending hours trying to optimize images and remove apps to improve speed. This app did more in 5 minutes than I accomplished in 4 months of manual optimization. Mobile score jumped from 33 to 68.
— BellaSerraBaby
Was about to rebuild my entire site with a new theme because of speed issues. This app saved me weeks of work and expensive theme. If you are not sure, just try the free trial. Backup your theme first ofcourse.
— MokaBabyShop
Been using this for a few days and the improvements are real and lasting. Not just a score hack for google. I had some issues with lcp but Sam fiddled with tthe app to fix it. Waiting to see when these reflect in my admin panel.
— Xylenta
Este aplicativo é bom e funciona como anunciado. É um pouco caro, mas os resultados falam por si. Ele tem algumas opções para alterar aplicativos específicos, mas ainda não testei.
— British Pack
Sam literally rescued my shop! Had a conflict with another speed app that broke reviews and images. He fixed everything within an hour and optimized it properly. Hero-level support!
— Wristify
Just clicking install made my site faster on google. No setup required, no tutorials to follow. It just starts working immediately. This is how all apps should be.
— FLOMANI
Free trial sold me completely. Saw scores jump during the trial period. Up and to the right as they say. No risk way to test if it works for your specific store setup.
— Shibui Outfits
My Dawn theme had some custom modifications that were causing conflicts with this app. Their support identified the issue immediately and did code fixes on the theme. Excellent technical knowledge!
— SaleniShop
Sam do suporte salvou minha loja! Tive um conflito no tema que estava quebrando meu checkout. Ele diagnosticou e consertou tudo em menos de uma hora. Suporte incrível!
— Worthingtons Jewellery
Kinda works, but its highly inflexible (breaks other apps with no way of whitelisting them), the implementation is very weird, it updates your theme daily (or more) to change an expiry date. If this date is reached it wont work anymore, as a way to break it when you uninstall it. Generally this works completely without a server, so a one-time payment would make more sense. Instead they have a mont...
— Affengeile Bilder
Non migliora niente ! Solo perdita di soldi !
— Mary Luxe Boutique
I have been using this for 5 months. The concept is great, but the implementation of this is trickier than meets the eye. There are plenty of issues with the implementation and support side. It appears to work, but after a while more and more issues parts of the website/theme will break. This is only caused issues with breaking my theme in various areas that takes a long time to find out. I have b...
— Japan Scissors
We installed the app and were in contact with a member of their team. He noticed that we were using other plug-ins and proceeded with manual customization. Apparently, no testing was conducted after making these changes. As a result, our entire front page became non-functional, and product images failed to load. This issue cost us a full day of revenue. Completely unacceptable.
— BoligRetning
It's not working even on Shopify Dawn theme... He didn't even tried to make it work. Each consequent "fix" will decrease my store speed to around 50. Even if the app doesn't work, they still charged me. The first answer was a recommendation to just uninstall the app, which say a lot about their ethics.
— Goodwatch
It works really well at first, but with time, the speed starts dropping until it is tweaked again. Then it works for a short while and then again starts dropping. The customer service is bad: they may or may not respond. Sometimes there is no response for months. After checking other reviews I see that it's a common issue. It seems like the developers don't care for their app anymore. I'm going t...
— Path of Cha
from last 3 months no reply from support , i think their app project is dead now , because no reply ...i am uninstalling app today
— SACHET
No customer support whatsoever. I am not sure if the app even works
— Fueler store

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