Ahrefs Site Explorer - new tool for backlinks analysis

[Ahrefs]

New free option is in the pipeline - trial usage of all paid services. You can build 3 standard reports for 500 links for any domain (not necessarily yours) for free, as well as to export 10000 links through rawexport. These limits are enough to analyse the efficiency of reports and export functioning. If you like the result you get and want more info, you may subscribe and get considerably higher limits.