Is mobile load time referring to FCP or LCP?

Is mobile load time referring to FCP or LCP?

arlentan
Shopify Partner
20 0 4

When benchmarks say 3s on mobile is a good load time, are they referring to FCP or LCP? 

 

My FCP usually loads below 3s no problem, while LCP tends to be between 5-7s.

 

Wondering if there is much I can do as I already have done the bulk of optimizing my store's speed ie. compressing images, lazy loading, deferring scripts etc. 

 

Screen Shot 2022-01-13 at 4.22.25 PM.png

Replies 4 (4)

oscprofessional
Shopify Partner
16259 2431 3159

Hi @arlentan ,

 

Your LCP and CLS score is low as I can see. You have to work on it. currently what is your score after solving compressing images, lazy loading, deferring scripts.

3rd party apps & codes which take time to load and their size . They decrease the speed.

 

Need to work on following points 

  • Theme Upgrade if there is a scope and upgraded theme available
  • Reduce JS Payload.
  • Use Critical CSS .
  • Reduce Large Image Sizes
  • Compress Images
  • Limit Third Party JavaScript & Shopify Apps
  • Preload Web Fonts. 
  • I would suggest limiting to one and using a standard web font.

Largest Contentful Paint

LCP is primarily affected by four factors:

  • Slow server response times
  • Resource load times

Cumulative Layout Shift

  • Cumulative Layout Shift measures the movement of visible elements within the viewport

By fixing these issues, your website speed score can definitely improve.

And we will provide an assured guarantee plan for the website speed optimization.

For more details please check the link below. 

https://www.oscprofessionals.com/shopify-performance-optimization/

If anything is missed out or unclear then don't hesitate to ask. Email us or Connect with us on Skype

Have a nice day !

 

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Swishman
Shopify Partner
20 0 2

Hi, so you can try out speed boosting apps if speed is still an issue. And don't forget to check the speed impact when you add new features 🙂🙂

 

 

Swish: Page Speed Booster

Shopify Speed Booster Application

oreoorbitz
Shopify Partner
261 31 134

Load time is a vague metric that doesn't describe the user expierence when a website loads, which is why we don't use it anymore.
FCP is first contentful paint, the first visual element that appears on a page.
LCP is the moment the largest element on that page finishes loading.

An ideal FCP time would be 1.5s, less then that isn't common, becuase of DNS lookup times and such

For when the LCP element is an image, usually 4-5s would be considered good for an image that is twice the size of it's container element(for best viewing on 2.0 dpi screens).



Available for pagespeed consulting
https://www.upwork.com/freelancers/~01a19b6cd90193f4f6?viewMode=1&s=1017484851352698949

BananaMoon
Excursionist
64 1 5

I'd like to add something to this discussion,

 

Most Google Pagespeed Insights tests (including Shopify's integrated one) use global servers (mostly in the US) to test a single URL, served from some edge of the Shopify network (see Shopify's engineering blog, about definition of a " pod ").

 

It could lead to super bad results without any real proof of it - because you live in this country and it's not tested 13s as first time to load, rather... 0,5 seconds ! This is also called DOM Content Loaded in JavaScript terms.

 

I've started to ignore PageSpeed results because there aren't just totally inaccurate for EU, but at a x10/20 times factors between what test says and what is for real 😄 Not to mention many JS scripts & techniques that do really fasten front-end, are considered as slowers instead..

 

Have a nice day,