Default image is an optional image to show if the visitor's geolocation does not match any other configured rules.
It is recommend to use a default image URL so that visitors will not see a blank image or broken image if their location is not targeted.
⚠️ Important: If no default image is set and no location rule matches, the image URL returns an empty response — the <img> tag will display a broken-image icon rather than the original src. Always configure a default image to avoid this.