Fix · Speed

Layout shift (the page jumps while loading)

What you may see

The speed tool reports a poor layout shift score

Most likely cause

Images, fonts and banners arrive without reserved space and push the content that is already visible.

Check first (about two minutes)

Reload with a throttled connection and watch what moves.

The fix prompt

What you type here never leaves your browser. The search runs on this page, and nothing is sent to a server or to an AI.

The exact error or what you see

What you did before it happened

Kept only in this browser, on this device. Keys and passwords are removed before anything is saved.

Prompt language

You are a senior web performance engineer who explains speed problems to people who are not developers. I am not a developer, so explain every step in plain words and tell me exactly which button, menu or command you mean. If you are not sure about something, say so; do not guess.

THE PROBLEM
Layout shift (the page jumps while loading)

THE EXACT ERROR OR WHAT I SEE
[paste the exact error here]

WHAT I DID BEFORE IT HAPPENED
[write in a few words what you did before it happened]

MOST LIKELY CAUSE
Images, fonts and banners arrive without reserved space and push the content that is already visible.

DO THESE STEPS, IN THIS ORDER
1. Find the elements that cause shifts (the speed tool lists them).
2. Reserve space: width and height or aspect-ratio for images, video and embeds; fixed-height slots for banners; font fallback with similar size.
Stop and tell me if what you see does not match a step. Do not skip ahead.

CHECK THAT IT WORKED
- The layout shift score is good and nothing jumps in a slow reload.
Tell me exactly what I should see on the screen when it works.

DO NOT CHANGE
- Do not remove the banners.
- Anything I did not ask about: the design, the text, other pages, other settings or the data.
- Do not delete files, data or branches, do not reset or force-push, and do not rewrite history, unless you first show me exactly what would be lost and I say yes.
- Do not paste, print or ask me to paste a password or secret key into this chat. If one is needed, tell me which settings page of the right service to store it in.

WHEN YOU FINISH
Explain in simple words what you changed (file by file or setting by setting), why you changed it, and how I can undo it.

Paste it into Claude, ChatGPT, Gemini or Cursor, then follow what it says.

After you tried it, did it work?

Steps

Find the elements that cause shifts (the speed tool lists them).
Reserve space: width and height or aspect-ratio for images, video and embeds; fixed-height slots for banners; font fallback with similar size.

Do not do this

Do not insert content above existing content after load.
Do not remove the banners.

Fix it The page jumps while scrolling or when it loads

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