Has the Facebook Pixel configuration changed recently? Impact to site speed

customjersey
New Member
1 0 1

Has anyone noticed changes to load speeds or PageSpeed Insights scores recently?

 

We noticed a big drop from ~70 to ~35 points for mobile and the culprit is the following Facebook .js file:

 

https://connect.facebook.net/signals/config/485894195266138?v=2.9.18&r=stable

 

We've been using Fb Pixel for tracking events for almost 2 years and our speed scores have always been good, or at least not impacted by Fb's code.

 

Any thoughts?

Steve_Wilson
Excursionist
14 1 4

We are seeing the same issue on our site as well.

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JustinGS
New Member
2 0 0

Yea, same problem here.  Facebook Pixel is our top problem on PageSpeed.

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Steve_Wilson
Excursionist
14 1 4
Justin, I am curious. Did you temporarily remove FB tracking pixel to
verify page load difference?
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JustinGS
New Member
2 0 0

I did, yes.  It was a significant improvement.

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cmscss
Shopify Partner
176 2 179

Hey Guys,

How did you stop Facebook JS files from loading? I've tried:

  • Disconnecting the Facebook Shop sales channel
  • Removing the Pixel from Themes > Preferences > Marketing
  • Uninstalling the Facebook app
  • Checking Google Tag Manager for Facebook tags
  • Using Theme Kit to pull the theme locally & searching for 'Facebook' & 'v=2.9.24' & fbevents.js etc
  • Removing all cookies and data associated with our site in Chrome, incase it was distorting the speed test
  • Waiting several hours incase Shopify's caching system needed updating

But despite doing all of the above, we still have multiple (one is huge) Facebook files loading:

If JS isn't being loaded from links in theme files, where do they load from?

Any help would be much appreciated.

Cheers

Ben

 

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cmscss
Shopify Partner
176 2 179

Ignore, removing the Kit app removed the FB JS and page load is noticeably faster on mobile.