How to improve Largest Contentful Paint for a better page experience

Largest Contentful Paint is a metric that measures how quickly a page’s main content loads and renders (or paints) most of its visual elements to the screen. Learn more about what a good Largest Contentful Paint score is, how to measure your website page’s Largest Contentful Paint, and how to optimize servers, networks, and more to improve your page’s Largest Contentful Paint.
Chapters
0:00 Introduction
2:30 What is Largest Contentful Paint (LCP)
4:08 How is LCP measured
4:37 What is a good LCP score
5:55 How to find your LCP score
8:49 Elements that affect LCP
9:00 Servers
9:43 Networks
11:33 Front end code
19:00 Edgecases
21:48 Conclusion
Learn more:
Largest Contentful Paint documentation at web.dev → goo.gle/3t85Jaa
CrUX Report → goo.gle/3mRQelN
Optimize LCP → goo.gle/3DKtFoT
Search Console signup → goo.gle/3DH6egu
Workbox → goo.gle/3zFHz9D
Learn more about optimizing your site's caching →goo.gle/3BQwUcX
Phil Walton's Cache first service worker blogpost → goo.gle/2WMNlry
Efficiently load third-party JavaScript → goo.gle/3jDgoq8
Serve images in modern formats → goo.gle/3kNNXFB
Watch more Getting started with Page Experience → goo.gle/3xgTJUu
Subscribe so you don’t miss an episode Getting started with Page Experience → goo.gle/SearchCentral
#CoreWebVitals #WebDev #PageExperience
product: AMP - Page Experience; fullname: Patrick Kettner; re_ty: Publish;

[@DarinPirkey]

Not sure who this guy is, but keep him around. Well done video.

[@patrickkettner8398]

:D thanks

[@BBI-Brandboost]

A very informative video and is something we have been taking into consideration since Google implemented their page experience update.

[@gaborom]

I didn't think about creating a GA Event to measure LCP improvements before. I will search for info on how to implement it. Thanks!

[@arinium]

Thanks a lot! A great video and a great way to explain things!

[@WickyDesign]

Great video! Tons of useful information.

[@sanjaykumarkumarskumar601]

Google

[@rickmorphe-vy1fy]

🎉🎉🎉🎉❤ the power of. Beautiful music ❤🎉🎉🎉❤

[@mio...]

I watched this 22 minutes video for more than 2 hours. The best video on the topic by far! Thanks

[@patrickkettner8398]

So glad to hear!

[@dannmarceau]

That's pretty typical for me as well! I like to "understand."

[@mio...]

@@dannmarceau to understand, and then i go to my 92 yo grandma to explain her LCP

[@Theneerajrchandran]

Wow something I was in search for. 👍👍👍👍👏👏👏👏👏👏👏

[@patrickkettner8398]

Super glad it was useful! Please do let us know if you have any questions

[@Rafaelorenzoni]

Thank's for the video!

[@PradeepSonawane8]

Great video, your way of explaining things is awesome! 👌

[@dannmarceau]

Thank you so much, these videos are great for newbies and dunder-heads such as myself, lol.

[@patrickkettner8398]

So happy they are useful!!

[@taofeekjunaid1388]

Awesome. I really need to re-watch the video

[@henrihelvetica5835]

Thank you for using WebPageTest Patrick!

[@france976]

6:43 how to popup that window to search for core web vitals overlay? NVM I found it: F12 to open devtools, then CTRL+SHIFT+P to open the popup to type "core" into.

[@NationFirstAlways-qp9xx]

Sir, Are cache plugins in a CMS like WordPress, an efficient substitute for writing any code that can help lower our LCP? Warmest regards, Forever.

[@mizanulhasan6588]

Amazing

[@MistyMeanour]

Excellent video, thank you! May I ask what the software/interface is at the 17:26 mark?

[@KlaudiaToth-ir3ow]

Hboi

[@KlaudiaToth-ir3ow]

1:26 1:30

[@ib4112]

Wow what an insight. Could you please tell us how we can use piece of JS code to measure LCP as you mentioned in video... Do we need to create GA event for i am bit lost if you can share an example how we can do that would be great.. at present i keep check on LCP using PageSpeed or GTMatrix etc.

[@patrickkettner8398]

Hi! Really depends on the infrastructure you are using, (v4 vs universal, etc). But in general, once you have the value discussed starting at 5:55, you want to upload that to google analytics. You don't _need_ to change anything in analytics to send that value, you can just send an Event hit using the Google Analytics js api (i.e. ga('send', {ec: 'Web Vital Info', el: 'lcp', ev: THE_NUMBER_YOU_GOT_EARLIER})

[@ib4112]

@@patrickkettner8398 Thanks Patrick, I use both version of GA on different websites. I will try it.

[@ib4112]

@@patrickkettner8398 I tried to implement this through GTM but it script generates error on multiple lines "This language feature is only supported for ECMASCRIPT_2015 mode or better: arrow function"... Sorry i am not a JS guys so but hard for me must be easy for other guys

[@patrickkettner8398]

​@@ib4112 sorry about that - the arrow function is just a different syntax for writing a javascript function - i.e. "(FOO, BAR) => alert(BAR)" is the same as "function(FOO, BAR) { alert(BAR) }", just a bit nicer to write. You. can change the () => {} version to standard JS functions to get past that error. If you share a link to a code sample, I may be able to help more

[@claudinejoly4265]

​@@ib41121:06

[@franciscoisaacdominguezjua1975]

Muchas gracias realmente necesario.

[@SarahThornburg]

Does anyone know how to set up the custom event to track the largest contentful paint in Analytics as he mentions at the very end?

[@patrickkettner8398]

lots of different ways to approach it, but once you have the value discussed starting at 5:55, you want to upload that to google analytics. You don't need to change anything in analytics to send that value, you can just send an Event hit using the Google Analytics js api (i.e. ga('send', {ec: 'Sarahs Web Vital Info', el: 'lcp', ev: THE_NUMBER_YOU_GOT_EARLIER})

[@user-ts4tz3jg5f]

OMG that was great

[@Tony.Nguyen137]

@4:30„Whatever element had the highest number of seconds between the first byte and when it was painted is what is reported for the LCP..“ I was confused why lighthouse labels my heading, which is absolute centered on a hero image as the Largest Contentful Paint, and not the Hero image 😂. a ‚Aha‘ moment for me

[@t1t1s29]

I miss a real example with Chrome Dev Tools and write the exact code to solve LCP issues...

[@patrickkettner8398]

It’s difficult to give a universal solution to solve a problem that can be exposed in hundreds of thousands of different ways. If you share a URL with an issue, I would be more than happy to help debug!

[@rickmorphe-vy1fy]

I got bim buzy 🎉🎉🎉❤

[@Adrinslim]

Adsense laughs

[@patrickkettner8398]

🤨

[@YouMotorcycle]

I was completely lost in the first twenty seconds of this video

[@patrickkettner8398]

Shoot! Really sorry about that - that information isn't really needed for the rest of the video :/. If you have any questions (including on the first 20 seconds!) please do leave em and I will be more than happy to help

[@MdmontuKhan-mm3ef]

Aarti Aarti

[@LEILAROSANE-jv3cr]

Tradução

[@josephbwuzhere]

This is 2 years old and inaccurate now?