To configure image URL on Drupal 8, follow the below steps:
1. Go to the Drupal 8 admin page and click on the “Configuration” tab.
1. From the drop-down list, choose “Media” and click on “Image Styles.”
1. Select the image style you want to configure and click on the “Edit” button of that style.
1. In the “Effects” section, you can configure various effects like Scale and Crop, Scale and Crop thumbnail, and many more.
1. Click on “Save” to apply the changes.
1. Finally, test the image URL by creating a new image field and uploading an image. Then, check the URL of the uploaded image and see if it is configured correctly on the Drupal 8 website.