Skip to content

PageSpeed Insight disregards a layout shift in CLS score #10960

@sauravvarma

Description

@sauravvarma

My website has a huge banner dropping from the top which causes the entire website to shift dramatically, it can be seen in the frames recorded by PageSpeed Insights as well and yet PSI's Lab data tells us that there is 0 shift.
Screenshot 2020-06-15 at 4 00 45 PM

Provide the steps to reproduce

  1. Run PageSpeed Insights on https://www.1mg.com

What is the current behavior?

CLS score is 0

What is the expected behavior?

CLS score should not be 0

Environment Information

  • Affected Channels: PageSpeed Insights
  • Lighthouse version: 6.0.0

Metadata

Metadata

Assignees

No one assigned

    Type

    No type
    No fields configured for issues without a type.

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions