Longify

Drag the following link to your bookmarks. When you want to Longify a URL on a page, simply highlight the link with your mouse, then click "Longify Selected" from your bookmarks. A new window/tab will open with information about the URL.

Bookmarklet: Longify Selected

The following bookmarklet does the same, except it opens in a pop-up window instead of a new full window/tab.

Pop-up Bookmarklet: Longify Selected - Pop-up

Example