Plugin resources and visible theme components
In particular, observe cookie banners, ad spaces and posted post images. A plugin can cause layout shifts, although the actual post remains unchanged.
Assign heavy scripts or style sheets to your plugin or theme. A form, slider or shop plugin can also load resources to pages that don’t need its function. Check this connection on a test page.
Where to check the setting in WordPress
In Network Analysis, search for the path under /wp-content/plugins/ or /wp-content/themes/ to assign the resource. Test the affected component individually in a staging copy before activating optimization options for all scripts.
Example of this specific finding
Illustrative control case: When loading an advertising space, the article slides downwards. The shifted text element is measured, but the missing space reservation is on the banner above it.
follow-up audit in WordPress
Make only one change per round of measurement and then test form, navigation and consent states. A higher number of measurement points is of no use if central functions fail.
Track the layout shift recording up to the triggering element. Reserve space in advance and also test consent banners, fonts and reloaded content.
Derogations and scope
A single laboratory measurement does not describe all user states. Classify targeted user interactions and late shifts separately.
Related: WordPress with classic or block theme. SEO plugins and page builders are different; there is no universal menu path for all installations.
Classify the general error
Definition, system-independent causes and further correction examples: The shifting element is not always the cause