Study: Who Has the Largest Index of Links Moz, ahrefs, Majestic or SEMrush?

Getting access to more link data is generally good, but which tool provider has the largest index? This post looks at the outcome of a study that addresses this topic.

• Tools used:  Moz Link Explorer, ahrefs, Majestic, and SEMrush.

Based on this study, Moz appears to have the largest link data set among the tools tested.