Configuration / Settings / Stores / Magento Admin

Speed Optimization

Update is available and recommended. Current version is: 1.14.13. Download the latest version of the module from the following link.

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Speed Optimization General Settings

Enable

RequireJs Bundle Generation

Collect JS in Frontend

If set to Yes, you can start collecting your JS’s on the frontend.

Steps to collect your JS for bundles:

Set your store in Developer mode. Can be done with "php/bin magento deploy:mode:set developer" command.
enable Collect JS in Frontend, set to Yes
clear Magento Caches
go to the frontend and click on the Start button then you can start browsing your store. Make sure you open all pages which you want to be optimized (homepage, category page, product page, and even cart and checkout pages).
once the browsing is complete click on the Stop button
Click on Download button to receive your custom bundle file
go to admin and set Collect JS in Frontend to No
use the downloaded bundle as explained in the documentation.

Optimization Method

Select Uglify to use the default JS optimization. Select None if you want to use a different optimization process such as Terser or Baler.

Js Optimization

Enable Advanced Bundling
	- Please Save config before pressing Start. - Enable Production mode bin/magento deploy:mode:set production - Deploy Static Content for all locales/languages bin/magento setup:static-content:deploy [your_locale] - In case you are using CDN or external cache solution, it's recommended to avoid accessing the frontend before this process is complete, to avoid caching an incomplete version of the files. Please select the theme and locale for which the advanced bundling should be applied: Preparing the the advancedbundling_build.js file
Merge JavaScript Files - Magento Core	This is default Magento Core Option from Stores > Configuration > Advanced > Developer Note: When changing this setting you will need to redeploy the content.
Enable JavaScript Bundling - Magento Core	This is default Magento Core Option from Stores > Configuration > Advanced > Developer Note: When changing this setting you will need to redeploy the content.
Minify JavaScript Files - Magento Core	This is default Magento Core Option from Stores > Configuration > Advanced > Developer Note: When changing this setting you will need to redeploy the content.
Move Javascript to the bottom of the page
	If you have some 3rd party javascript or some custom javascript in your page and you don't want to be moved at the bottom just add to your script tag the following: data-ignorejsmove="true". Ex.: <script data-ignorejsmove="true">window.alert("This won't be moved to page bottom.")</script>
Excluded Block Names	List by layout block name the blocks (separated by ,) whose javascript should not be moved to the bottom of the page. Default blocks that are ignored: require.js, head.additional, transparent_iframe

Css Optimization

Merge CSS Files - Magento Core	This is default Magento Core Option from Stores > Configuration > Advanced > Developer Note: When changing this setting you will need to redeploy the content.
Minify CSS Files - Magento Core	This is default Magento Core Option from Stores > Configuration > Advanced > Developer Note: When changing this setting you will need to redeploy the content.
Enable Css Preload	When CSS Preload is enabled, stylesheets included in head will be downloaded asynchronously to prevent them from blocking page render.
Preload all Css files	If set to Yes, all CSS files will be preloaded, otherwise CSS files with media query all will be included normally, and only the rest will be preloaded. Note: When set to Yes, depending on the server speed, for a brief period of time you might experience the Flash of Unstyled Content, an unstyled page, until the styles are fully downloaded and applied.
Remove print.css from loading

Html Optimization

Minify Html - Magento Core

This is default Magento Core Option from Stores > Configuration > Advanced > Developer