Question 1

Why you should not chase PageSpeed Insights or Shopify score?

Accepted Answer

|| ! Key insights to take away

It’s impossible to have a perfect score in Shopify or PageSpeed Insights
Third-party apps and theme has very negative impact on your store
PageSpeed Insights is good for suggest optimization ideas
List of optimization opportunities you should focus to optimize

Chasing PageSpeed score is a waste of time

First, Shopify speed score is PageSpeed Insights score, they’re based on Google Lighthouse performance metrics. Your score is based on a weighted average of your store's home page, your product page, and your collection page. Shopify score report mobile versions of these pages

You cannot take too literally all of the suggestions from Google PageSpeed because sometimes they are unrealistic or impossible. For example, it tell you to “Remove Unused Javascript or CSS” and this is very time consuming

You would need to analyze your CSS files, make sure the rules aren’t used on your storefront, edit your files, and do a lot of testing. The time of fixing them is very high but the benefits may not worth it.

If you build a site from scratch you might not have this problem, but if you’re on Shopify I can be pretty sure that you’re not using a customize theme and you’re using 3rd party apps.

Which factors has high impact on your speed score?

Third-party apps

Most third-party apps add additional JavaScript and CSS resources, which Google PageSpeed Insights will flag here as well. In these cases, you would need to contact the

Question 2

PRIVACY POLICY

Accepted Answer

Last updated on September 22, 2020.

Perfect Apps Inc. ("Perfect Apps", "we", "us" or "our", as appropriate) respects an individual's privacy and will only collect, use or disclose your personally identifiable information (personal information) in accordance with its Privacy Policy. We recognize every individual's right to privacy and acknowledge our obligation to preserve the confidentiality of personal information. This Privacy Policy governs the collection, use, storage and disclosure of the personal information of the users ("User(s)" or "you") of our website https://PerfectApps.io ("Website"), products, and services, including our applications available on the Shopify platform https://apps.shopify.com/partners/PerfectApps ("Apps"). Perfect Apps is responsible for how we collect, handle, and use this information.

Perfect Apps reserves the right to update its Privacy Policy at any time and such modifications shall be effective immediately, unless otherwise stated.

Please note that this Privacy Policy constitutes an integral part of the terms and conditions of use of our Website, in addition to any terms and conditions specific to the use of our Apps, as applicable.

PERSONAL INFORMATION COLLECTION AND CONSENT

Q: PRIVACY POLICY

Last updated on September 22, 2020. Perfect Apps Inc. ("Perfect Apps", "we", "us" or "our", as appropriate) respects an individual's privacy and will only collect, use or disclose your personally identifiable information (personal information) in accordance with its Privacy Policy. We recognize every individual's right to privacy and acknowledge our obligation to preserve the confidentiality of personal information. This Privacy Policy governs the collection, use, storage and disclosure of the personal information of the users ("User(s)" or "you") of our website https://PerfectApps.io ("Website"), products, and services, including our applications available on the Shopify platform <a href="https://apps.shopify.com/partners/PerfectApps">https://apps.shopify.com/partners/PerfectApps</a> ("Apps"). Perfect Apps is responsible for how we collect, handle, and use this information. Perfect Apps reserves the right to update its Privacy Policy at any time and such modifications shall be effective immediately, unless otherwise stated. Please note that this Privacy Policy constitutes an integral part of the terms and conditions of use of our Website, in addition to any terms and conditions specific to the use of our Apps, as applicable. <h1 id="personalinformationcollectionandconsent">PERSONAL INFORMATION COLLECTION AND CONSENT</h1> Perfect Apps may collect personal information that can identify you when you (i) access our Website, (ii) download and subscribe to our Apps, (iii) order or request information about our Apps or our services. The

Q: What is Smart Preloading and how to set up

<h3 id="iwhatissmartpreloading">I. What is Smart Preloading</h3> Smart Preloading is a technique called Predictive Preloading also. By consuming data from google analytics, we analyze this mathematical data to predict the user's behavior and dynamically create a predictive model that can be used to smartly prefetch only what the user is likely to need. For instance, it predicts the most likely page a user is going to visit next on a site or which link is most likely to be clicked, so simply the app prefetch resources only when they are likely to be needed, and deliver the page instantly to users without waiting time. From that, it increase users' happiness when they experience shopping on your site. For example: We suppose that we have a website with three pages - home, policy, and contacts. Also, we suppose that from Google Analytics we know that there's 90% chance the user to visit the policy page from the home page and only 10% chance to go to the contacts page. In this case, while the user is in the home page we can download/prefetch all the resources from the policy page so that the user's subsequent navigation could be as quick as possible. This technique is known as prefetching. When we're performing prefetching based on a prediction for the user's behavior we're applying predictive prefetching. Based on Google Analytics report, it will select which pages on your site are very likely the user clicks or hovers to preload, so there might be some small resources/ pages on the

Perfect Apps may collect personal information that can identify you when you (i) access our Website, (ii) download and subscribe to our Apps, (iii) order or request information about our Apps or our services. The

Question 3

What is Smart Preloading and how to set up

Accepted Answer

I. What is Smart Preloading

Smart Preloading is a technique called Predictive Preloading also. By consuming data from google analytics, we analyze this mathematical data to predict the user's behavior and dynamically create a predictive model that can be used to smartly prefetch only what the user is likely to need. For instance, it predicts the most likely page a user is going to visit next on a site or which link is most likely to be clicked, so simply the app prefetch resources only when they are likely to be needed, and deliver the page instantly to users without waiting time. From that, it increase users' happiness when they experience shopping on your site.

For example: We suppose that we have a website with three pages - home, policy, and contacts. Also, we suppose that from Google Analytics we know that there's 90% chance the user to visit the policy page from the home page and only 10% chance to go to the contacts page. In this case, while the user is in the home page we can download/prefetch all the resources from the policy page so that the user's subsequent navigation could be as quick as possible. This technique is known as prefetching. When we're performing prefetching based on a prediction for the user's behavior we're applying predictive prefetching.

Based on Google Analytics report, it will select which pages on your site are very likely the user clicks or hovers to preload, so there might be some small resources/ pages on the

Question 4

What is Actual Speed?

Accepted Answer

I. What is Actual Speed

Simply, Actual Speed is how fast your pages load in reality.

As you can know several factors could impact your online store speed, including the following:

Apps
Third-party libraries and services
Analytic libraries
Theme code
The number and size of images and videos

With Swift, we help you optimize theme code and minimum the file size of images in a remarkable way. Through advanced technique such as Lazy load image, Minify CSS files, Extract Critical CSS, Preload web fonts, Minify Javascript files to optimize your theme as well as using Smart Lossy Compression to optimize images on your store so that decrease the file size of images considerably, from that boost your store Actual Speed.

For more detail about how Swift optimize images and theme to boost your Actual Speed, please check here.

II. Which features and price available in Actual Speed

Premium plan with the price is $19/month with highlighted features below:

Compress image (free 1,000 images per month)
Image Smart Lossy Compression
Lazyload image
Minify CSS and Javascript
Critical CSS
Preload fonts
Automatic optimizations
24/7 Technical Support

Hope this helps you much.

To get more useful information about features and pricing plans available in Swift, please visit [our article](https://help.perfectapps.io/en/article/which-p

Question 5

How to remove all Swift codes out of your store

Accepted Answer

A. When you optimize images and/or optimize theme, if something unexpected occur in your live theme, no worries, please contact our CS team for help or:

Click on “I have trouble with theme” then click on “Remove Code” button in the popup to remove all our codes that applied into your live store.

B. In case you want to uninstall our app and remove all our codes out of your store:

Firstly, please go to Shopify admin > Online store > Themes > Action > Edit code

Layout section > find theme.liquid file > Ctrl + F > enter "core" to find and clear this code line {% include 'swift_core' %}

Enter "swift" in Search bar > Snippets > find swift_core.liquid file > Delete this file

Please check your plan and do these steps to remove all codes completely.

Actual Speed: you need to click on “Remove code” as the instruction above to remove entire Actual Speed code before uninstalling.
Perceived Speed: Simply all codes in Perceived Speed will

Question 6

What is Simple Preloading method?

Accepted Answer

Swift uses Simple Preloading method to predict resources based on mouse position, then makes your site’s pages instant just in time without any huge effort.

On desktop, by preloading pages right before a visitor clicks on a visible link: Before a visitor clicks on a link, they hover their mouse over that link. And by this way, Swift helps you start preloading at this moment, and leaving on average over 300 ms for the page to preload. As the result, it does increase their good experience and fasten your page loading speed as well.

On mobile: Not like desktop, on mobile it will prefetch links when visible in viewport and preload every visible links.

To have more clear experience on how to use Simple Preloading, please refer to our video as the below:

On desktop:

https://www.youtube.com/watch?v=1zpofPbT44s&feature=youtu.be

On mobile:

https://www.youtube.com/watch?v=cuNQte2GAl0&feature=youtu.be

Hope you enjoy Swift and have a wonderful experience!

Should you need further support, please feel free to contact us via live chat or email us at support@perfectapps.io

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