Reduce the impact of third-party code Third-party code blocked the main thread for 540 ms

[Keez]

Good Morning.

Could you give me advice on how to get rid of the below error in a page speed test.

Reduce the impact of third-party code Third-party code blocked the main thread for 540 ms

Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading.

How do i load third-party code after the page has primarily finished loading?

Third-PartyTransfer SizeMain-Thread Blocking Time

Shopify  Hosting	1,243 KiB	269 ms
…assets/shopifyCh….js?button_color=… (cdn.shopify.com)	208 KiB	269 ms
…assets/OnePage.esm.en.9d5d305….js (cdn.shopify.com)	264 KiB	0 ms
…assets/app.esm.en.3a2e753….js (cdn.shopify.com)	246 KiB	0 ms
…assets/750.esm.en.da1ab43….js (cdn.shopify.com)	203 KiB	0 ms
…assets/362.esm.en.de22e43….js (cdn.shopify.com)	87 KiB	0 ms
Other resources	235 KiB	0 ms
Google Tag Manager  Tag-Manager	166 KiB	233 ms
/gtag/js?id=G-T3NZ7E8CEV (www.googletagmanager.com)	91 KiB	137 ms
/gtag/destination?id=MC-7KRJT1PKJR&l=dataLayer&cx=c (www.googletagmanager.com)	75 KiB	96 ms
Facebook  Social	91 KiB	41 ms
/en_US/fbevents.js (connect.facebook.net)	55 KiB	41 ms
…config/279…?v=2.9.138&r=stable&domain=prettymade.com.au (connect.facebook.net)	36 KiB	0 ms
Google CDN  Cdn	34 KiB	0 ms
…1.12.4/jquery.min.js (ajax.googleapis.com)	34 KiB	0 ms
shop.app	3 KiB	0 ms
Google Analytics  Analytics	0 KiB	0 ms
merchant-center-analytics.goog

[PaulNewton]

Try to narrow the scope of question to the minimum possible.

This is a common topic you can research as overall the question is to vague with to many steps to walk someone through on a forum post so you will only get vague overviews.

"How do i load third-party code after the page has primarily finished loading?"

Most of that code coming from shopify assets is injected by {{ content_for_header}} and is not mean to be modified by merchants. 

Disable as many apps affecting the frontend as possible such a shopify-chat.

Other scripts depend on how you've added them to the theme requiring either a different setup process or theme customization.

If you need an actual performance audit or theme customization then contact me by my email for services.
Contact info in forum signature.
ALWAYS please provide context, examples: store url, theme name, post url(s) , or any further detail in ALL correspondence.

[Keez]

Hello Paul,

Thankyou for responding.

The website is prettymade.com.au