Rocket Page Speed Optimizer

Nov. 13, 2025

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 monthly fee for doing basically nothing after installing, other than messing with your theme. Customer service also never answered my question for a way to whitelist scripts. Better use another app, that ain't it.

Nov. 4, 2025

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.

June 10, 2025

Non migliora niente ! Solo perdita di soldi !

March 14, 2025

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 been in contact with the support team multiple times, and after it repeatedly breaks the website, they stopped responding to emails. I have been left without support from the team and will no longer use this.

Feb. 14, 2025

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.

Jan. 28, 2025

I've been using Page Speed Optimizer since August 2024, so for about 6 months. I use Dawn theme and update regularly. This app works as advertised - pushing my Page Speed Insight performance score up from the 40s and 50s to the 90s across my Shopify site (blog, pages, products, homepage...). Page speed is super important for SEO and this app has positively impacted this aspect of my SEO work. The best part of the app is the customer support. Over the months I've had issues with other apps bringing my performance score down. I email Kirkland and within hours they've tweaked my implementation and solved the issues. Fast, friendly support. App works better than expected. 5 stars - definitely recommend.

Nov. 12, 2024

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.

Sept. 7, 2024

I have tried SEVERAL so called Page Speed tools. Some of them were very expensive! Each of the tools I've tried provided varying levels of effectiveness (from very good, to terrible). Some even broke my theme entirely. On a whim I tried this one. WOW! Our pagespeed scores have come up nicely. Not mind-blowing, but an impressive bump. We've moved from unacceptable speed levels to above average speed levels. And our Web Core Vitals are spot on now. How can something this inexpensive work so well? I haven't got a clue. But I can say this with assurance -- this app is a keeper!

Sept. 6, 2024

Amazing App, the only one that significantly reduced the LCP of my Website. The customer support is very fast and reliable. Definitely recommend!

May 8, 2024

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 to discontinue their service.

April 1, 2024

No customer support whatsoever. I am not sure if the app even works

March 27, 2024

I haven't seen any changes with the app installed.

March 5, 2024

Hello, We eagerly installed this application with high hopes. We made all the adjustments, but apart from a 1-2 point improvement on our website, there hasn't been much progress. We've been trying to reach the support team for two days now, opening tickets through the support section and sending emails to their addresses, but we haven't received any response or assistance whatsoever. Frankly, when I read the reviews, it doesn't seem like this at all. Either the reviews are fake, or they no longer care about this application. In short, the application is not functioning, and moreover, you can never reach the support section.

April 18, 2023

Highly recommended, always an updated site-speed and a good Core Web Vital performance. Even if you make big changes on your site it will always take care of he optimizations again. Sometimes a couple of days later, but always it brings you back to an optimized and good score. Nice app, easy to use and also friendly and good support.

March 28, 2023

What is this sorcery? I've been through thousands of pounds trying to find someone to improve our site speed. We've gone from a site speed of 25 to 70. Insane! Well done team, you are incredible.

March 8, 2023

I don't know how, but this fkn thing works! Went from 23 to 60 in 3 days. Super easy to install, 0 hustle. I wish I could find this app earlier. Good job, guys!

March 5, 2023

i install it a few weeks ago and I did have my doubts but I have to say the site is quicker it took a few days to show up on the Shopify speed score but that has jumped and on Google, the site speed score has also shown a big leap in the positive direction so well worth the small monthly fee as far as i am concerned

Sept. 6, 2022

Updated: I've emailed [email protected] on Aug 4 but got no reply ---------------------- The app is not working and the team doesn't reply to my email! I tested website speed after enabling but the result still doesn't past the Google pagespeed test

July 15, 2022

I was sceptical about this app. I thought it is bs. My website speed almost doubled (according to Shopify speed score) within few days. How about that?

May 20, 2022

Just wanted to give you an update on the work you did. Last week, we were F – worse than our worst major competitor. And now we are A. We had an LCP of over 7 seconds and now we are down to half a second. The results you have had on our site are nothing short of incredible. I don’t know how you do it and I suspect you won't tell