Common Installation Mistakes

Purpose

List the most common installation issues that prevent Speed Layer from working correctly.

Mistake 1: Adding async or defer

Do not add async or defer to the Speed Layer script. It reduces how early the script can run and can compromise behavior.

Mistake 2: Placing the script too low in the head

Speed Layer should be the first script on the page and placed immediately after the title tag.

Mistake 3: Installing in the body

Installing in the body often runs too late.

Mistake 4: Installing on one page instead of globally

Install it in a global template or platform level script injection area that runs on every page.

Mistake 5: Using a tag manager that injects late

Some tag managers inject scripts after the page is already rendering. If that happens, use a template or platform native head injection method.

Mistake 6: Copying the wrong Nano ID

Your Nano ID is domain and hostname specific. Use the exact script URL provided by Auto Genius customer support.

Quick fix checklist

• Confirm the script is in the head
• Confirm it is immediately after the title tag
• Confirm it is the first script
• Confirm async and defer are not present
• Confirm the change is published