Cumulative Layout Shift Warning in Origin Summary

Hi @silencerocks,

I need to talk to the development team regarding your query. I will keep you posted as soon as I hear back from them.

Kind regards,
Kriti

Thanks!

Hi @silencerocks,

We found the following documentation about cumulative layout shift.

https://web.dev/cls/

According to the article, if the score is below 0.1, it is good.

https://drive.google.com/file/d/1dDH4x9KxG4NRvYLI5YyyZataGcacdgZ-/view?usp=sharing

We had installed the web vitals chrome extension.

https://chrome.google.com/webstore/detail/web-vitals/ahfhijdlegdabablpippeagghigmibma?hl=en

Go to our demo quiz ( https://quizandsurveymaster.com/quiz/sample-quiz-5/ ) and take the quiz while looking into the score in the web vitals chrome extension.

The score is 0.056, which is good.

https://drive.google.com/file/d/1BJwlJrBgWXClLBC7FZWJGM_0Qu9rb2th/view?usp=sharing

Please check that the rating is good when filling up the quiz.

It will only be poor after submitting quiz and this is inevitable, as QSM needs to clear the quiz and fill the results response from the server.

I hope this helped to resolve your query.

Regards,
Kriti

Dear Support,

thank you a lot for installing the plugin and trying out yourself. I tried to replicate your score below 0.1 but i was unable.

I think the most reliable thing is to check the PageSpeed Insights of your sample page. That should bring out the same result for every user:

https://developers.google.com/speed/pagespeed/insights/?hl=de&url=https%3A%2F%2Fquizandsurveymaster.com%2Fquiz%2Fsample-quiz-5%2F&tab=mobile

https://snipboard.io/0xoWSV.jpg

As you can see, just loading the page (by google on a mobile moto g4 – which is google’s default phone) results in a cls (labdata) of cls= 0,35. When you scroll down to the screenshots it seems that the size of the logo is not fixed, so theres a shift to the top as soon as the logo loads (smaller than expected).

Your whole domain is rated as Core Web vitals “failed” – that is the origin summary collected by real users in chrome. The Cumulative Layout Shift for all pages combined is cls=0,21 for the whole quizandsurveymaster.com.

From the screenshot you deliverd it seems you’re using a desktop environment. When i try to replicate that i get a cls=0.658.

https://snipboard.io/eIxjoS.jpg

What actually counts for google is a mobile environment with Moto G4. You can use this setting in the Chrome Developement Mode (Ctrl+Shift+I), click on the “Toggle Device” and use the Moto G4-Preset.

Reloading the Page results in cls=0,391

https://snipboard.io/Cy3UIW.jpg

After filling out the quiz still cls=0,391

https://snipboard.io/70inru.jpg

Hitting the submit button raises to cls=0,910

https://snipboard.io/ykwCYo.jpg

I hope that helps. The actual score you get with the plugin depends on your settings and environment but at least the PageSpeed Insights should be the same.

Please check that the rating is good when filling up the quiz.

It will only be poor after submitting quiz and this is inevitable, as QSM needs to clear the quiz and fill the results response from the server.

According to

https://web.dev/optimize-cls/

CLS “measures the instability of content by summing shift scores across layout shifts that don’t occur within 500ms of user input”

Maybe the slow scroll to the top of quiz-box after hitting the submit-button is the problem? I don’t know how to test that on my own, but if instead of scrolling a quick jump to the top of the quiz-box would not count as shift, since it’s directly after the user input?

Hi @silencerocks,

Thanks for reaching out to us again. I will forward your response to the development team and get back to you soon.

Kind regards,
Kriti

Hi @silencerocks,

For testing, We have removed scrolling and loader script.

In the screen-cast, you can see the web vitals chrome extension goes red after the results are appended onto the webpage.

https://drive.google.com/file/d/1ChD9L2f6NMOY8gotZV0Xh8fICoXTIk9V/view?usp=sharing

It has noting to do with scrolling. There is no way to control the appending speed of the result.

I apologize but at the moment we have no solution for this.

Kind regards,
Kriti

Dear support,
thank you for trying this solution.

Nevertheless I still think Quiz and Survey Master is the best plugin for this purpose available and I’ll stick to it anyways.

Hopefully Google changes the way it measures qls in the future since displaying the results at the place of the questions is clearly the best solution for the user

Thank you!

Thank you @silencerocks, for the appreciation.

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Kind regards,
Kriti