There are a few potential reasons for this:

  1. Some of the links have already been added in your account. We don't allow duplicate links to be added. 
  2. By default we only show one link per domain. When importing, you can choose to see up to 20 links per domain. In that case, more links should be added. 
  3. You have checked LIVE LINKS ONLY when adding links. When the links are checked, they are found to not exist and are removed.
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