How do I retrieve the requestID?

Introduction

When a malfunction is detected on a page optimized by Fasterize, it can be very useful to send the requestID (or X-Unique-Id) to the support team. This unique identifier allows us to pinpoint the specific request in order to speed up the diagnosis.

Here are two simple ways to recover it.

1. Recommended method: via the Fasterize browser extension

Install the extension

• Available for Chrome and Firefox
• Allows you to inspect pages and display useful data such as the requestID
• More information in this blog post

Find the requestID

1. Load the relevant page
2. Click on the Fasterize extension icon in your browser.
3. Locate the "requestID" field in the interface.

💡 This method is fast, visual, and recommended for all users.

2. Alternative method: via the browser's DevTools

Detailed steps

1. Open the development tools
   • Right-click on the page > "Inspect"
   • Or press F12
2. Go to the "Network" tab.
   • Refresh the page if necessary to see the requests.
3. Find the main query
   • Look for the one of type document, often the first in the list
   • Click on it to see the details
4. Read the header X-Unique-Id
   • In the tab Headers (or Headers), locate the field X-Unique-Id
   • Copy its value: this is the requestID.

💡 This method works on all modern browsers without any additional tools.

Conclusion

The requestID is an essential key to diagnosing unexpected behavior on a page optimized by Fasterize. Whether you use our extension or browser developer tools, you can easily find it and add it to your support request for faster processing.

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