Web links are Field values with web site and web page addresses (URLs) like browser bookmarks. When such values are displayed in your application, they will be presented as clickable links.
You can specify a default link for when new entries are created. This only applies to the future: existing entries will not have their values changed.
If this option is enabled, and the link for an entry points to an image on the web (in JPG, GIF or PNG format), the image will be shown wherever possible instead of the link itself. Images will be shown as thumbnails which can be clicked to load the full image. (Read more about images.)
By default, the system shows links as shortened URLs. For example, the link http://www.yourwebsite.com/path/to/site would be shown as www.yourwebsite.com.
Alternatively, you can specify text to show instead of the URL. Wherever a link appears, the clickable text will be shown.