URL Profiler records every backlink it finds, which means that URLs with multiple backlinks to your domain will be reported. In most instances the anchor text will vary.
1. It will only record links that match the domain you’ve entered. For example:
3. Sometimes a URL renders broken HTML, which the software can’t process
Here is an article that explains why link checkers can be inaccurate, and how to boost URL Profiler's link checker to make it extremely accurate.