Thunder Page Speed Optimizer

Wow, I've used a lot of apps to speed up my store. Half of them seem to do the opposite. Thunder is really very good. Had a little glitch in setup and Georgi from the support was fast, efficient and friendly. 5 stars all round from me :)

This app is must have! I launched my shop soon and was waiting to see the speed score. When I saw score 23 I was shocked. I'm not so tech person and didn't know where to start from.... Then I saw Thunder Page Speed Optimizer. I just deside to try and to see if anything will change.
This app exceed my expectations!!!!!
My score jumped from 35-60 on PageSpeed Insights! The score gets almost double and this is without me doing anything! I'm so greateful for this and I really think the score will get even higer, because shopify needs one week to show the new score.
Highly Recommend!!!

Ran into an issue (no fault of the plugin) where our mega menu was not showing.

Emailed support, spoke to Gerogi who could not have been better if he tried!

Within a couple of emails he had been granted access to our theme, resolved the issue and gotten the plugin working to it's full potential! Went from an F with 23% peformance all the way to a D with 61% which is almost a 3X in performance!!

Could not recommend this plugin enough to anyone!

If you want the best for speed optimisations, you've found it here!

Increased our speed. We got some help from the team, Georgi, and felt like he took great care of us and made things work great!

Easy to use. Fast page speed. Excellent app. I want to give 10 stars................................

Final review of this app. Read the reviews of the great service this app has provided. I didnt see it. Spent days emailing with no reply. Then an "I'm sorry for the late reply" email only to never reply to emails or support again. The app seems nice and I hate to leave a poor review of a free app but if you offer a product it would be nice to respond to support. Even if it is to say I'm sorry this will not be a fit for you. Wasted a week on this with no luck. I would recommend skipping this app.

Critical css, image resize not working on my website. Not sure if prefetching works. Within the code of loading bar and therefor sort of hidden, a link to https://www.w3.org/ creates "the largest contentful element" with error, read by website speed anaylizers also as an error, somehow registers for a higher speed. The only true benefit using this app was compressing the css file and nothing more.

Die App hat uns wirklich geholfen, die Ladegeschwindigkeit in der mobilen Version zu erhöhen. Wir hatten dafür ein Angebot eines Anbieters in Höhe von 300 $. Hier kam der Service kostenlos. Der Support könnte besser erreichbar sein und auch würde ich mir Empfehlungen wünschen, wie oft man das "Optimize"-Programm machen sollte. Man muss sich darüber im Klaren sein, dass die Alt-Texte der Bilder nach der Optimierung verschwinden, wenn sie nicht über die Datenbank hochgeladen wurden. Aber für uns in Ordnung, da das nicht zu aufwendig in der Wiederherstellung ist.

Fake app. Fake reviews. It has been 2 days and it is still loading and the green circle keeps spinning. No help or revert from chat support. All the reviews are fake and very very bad experience wasted 2 days.

Doesn't work+ damaged my links, so every product lead to 404. inapp insight showed increasement, independend seo checker by seobility dropped to 15% (due to the 404).. images were not optimized at all..