A link profile built from a handful of sources is fragile: lose one site and a big share of your authority disappears. The Backlink Source Diversity Scorer grades how spread out your links really are, across domains, anchor texts, TLDs and follow status, and turns that spread into a single 0-100 score.

Paste your backlink export with one link per line in the format URL | anchor text | follow status, then click Score Diversity. The tool weights domain diversity most heavily, followed by anchor diversity, TLD spread, protection against one domain dominating, and a natural dofollow balance - then names your strongest and weakest signals so you know exactly what to earn next.