Swift SEO Page Speed Optimizer

Lo recomiendo al 100% muy buen servicio postventa y atención al cliente excelente. He quedado muy contento con este programa. He podido incrementar la velocidad de la tienda un 50% más. Fenomenal, gracias al equipo de Swift.

Swift SEO & Page Optimizer are the best. Application and team deserve more than 5 stars. To recommend :-)

AVOID THIS APP AT ALL COSTS IT HAS CORRUPTED THE THEME ON OUR STORE!!!!
ABSOLUTELY CATASTROPHIC LOSS OF DATA DUE TO INSTALLATION OF THIS SWIFT PAGE SPEED OPTIMISER APP. From the moment our developer chose to install this app it corrupted our Theme and we have LOST SIX MONTHS WORTH OF SITE DEVELOPMENT. This is THE MOST STRESSFUL SITUATION. PLUS THEIR SUPPORT IS ABSOLUTELY USELESS AND THREE DAYS AFTER THE CATASTROPHIC CORRUPTION OF OUR SHOP THEY STILL HAVE NOT MANAGED TO RESOLVE THE ISSUES. WE ARE ANGRY BEYOND WORDS.

The day I installed this app was the day my website went insane. I had multiple issues right out of the gate with this one. I ran the free speed optimizer and also used their image tool to optimize 100 images. My thinking was I would test the free version, and if it worked I would pay for monthly optimizations. Test failed.

The first, and biggest problem, was that the app made a duplicate version of my website. I did not realize right away, but the "optimized" theme was downgraded from Dawn 7.0 to a modified Dawn 4.0 that was unable to update. And not just the theme it duplicated....ALL my backups were suddenly Dawn 4.0. My website is less than a year old, Dawn 4.0 was never previously installed on my site, ever.

I also had multiple product images that simply vanished and needed to be re-uploaded. On mobile, my product image swipe quit working. Even though it would say 1/4 images....It would only show one on mobile. I also had two "sale" icons on the products that were on sale, and one was half way off the screen so it was definitely causing glitches. Random icons on my website also disappeared and my website was overall glitchy. The optimizer tool got my page speed from a 28 to a 41 right away. However, the next day I was down to a 21 page speed and my website was simply not working.

I decided to try to update my website to Dawn 9.0 since 4.0 was such an old version I figured that could be part of the problem...But no, the theme was modified and could not be updated. I had to download a fresh version of my theme. None of my page templates would transfer....I would have to completely re-design my website.

So I got in touch with Shopify support hoping for an easier solution, who told me whatever the optimizer did to my theme to remove the "unused" javascrips and css, did something to my theme files. They suggested I contact the app developer support and ask for whatever they did to my website to be rolled back or removed.

The Swift app developers got back to me quickly and looked into my issue, which I was happy about. However, they came back and told me it was "impossible" that my themes were downgraded to 4.0, and that it was "unreasonable" that I did not notice immediately (Do you check what version of theme you're using every day?) They offered zero solution, and told me to go back to Shopify with their email. So I did.

Shopify support agreed that the email from the Swift app support was incredibly unhelpful and basically dodging responsibility. I spent a whopping four hours with Shopify support, and spoke to multiple people as they sent my case up the ranks to figure out why my site wouldn't update, why there were so many glitches, and why none of my page templates would transfer to my fresh Dawn 9.0 theme download from the modified 4.0 themes. After all that time, it was finally suggested that I just rebuild my page themes and redesign my website. We had to delete all my old backups that were corrupted by the Swift Page Speed Optimizer tool and start over. Devastating.

After removing all of the theme backups that were corrupted and starting on a fresh theme download....My google page speed went from a 21 to a 64. Removing whatever the Swift app did, fixed everything. My website now runs flawlessly with a vastly improved speed score. In hindsight, I should have just upgraded to 9.0 before trying this app.

I asked the Shopify support rep how a Shopify app from the Shopify App Store could so severely damage my website files...and they told me that Shopify has no control over what apps are on the app store and to use caution. They told me the best thing I can do is to leave a detailed review of what happened so other users may not have this problem. So here I am .

I give one star for the support team responding to me, thanks for the response, as unhelpful as it was. Otherwise, I would avoid this app, or any app, that automatically alters theme files. Zero stars.

this app helped me greatly and I have never had such good customer experience. The smart preloader is excellent and my site really feels faster Thank you!

Esta muy completa la aplicación, es bastante buena y optimiza mi pagina muy bien para que sea mas rápida. Me gusto mucho lo fácil que es usarla y la atención al cliente es excelente! Me resolvieron todas mis dudas y me dieron una asesoría muy completa sobre los planes y todas sus características.

Great support!
The team is very helpful and reliable. High quality dev department which is always happy to help.
We strongly recommend the expert service for a top level consulting about code performance.
The app is by far one of the best tools we tested on Shopify

Just installed app. I had a few question and Tommy in support was awesome. I will update in 30 days.

5 stars. I was hesitant to pay the $150 to optimize the webspeed, but they did a very professional job and got our website incredible load time results. We ended up adding more to the site a few months later and our site speed dropped, the staff was SO helpful in accommodating us and took care of the issue for us within one hour. The customer support is top notch and I got a better return on investment here than any UPWORK freelancer could have done. Saved me time and money. Thank you again.

This is 1000x better than previous optimization apps used. It immediately improved my speed score by 40 points in half an hour!! Thank to Julie (who is really hot btw) the agent who helped me every step of the way forever and guided me the whole time, this app is well worth it to help with all of your optimization needs, I am highly impressed and I had a very helpful and informed customer rep to help my site become top notch in an instant!