Backlink checker comparison: why do the exports disagree?

Two backlink checkers can report different source lists for the same destination. Before comparing their totals, I would inspect what each export actually represents.

For a small comparison exercise, choose the same destination and check date, keep the original exports, normalise the obvious duplicate rows and inspect a sample of disagreements on the live source pages. Record inaccessible pages as unverified, rather than automatically deciding one tool is wrong.

If you recommend a checker, describe the task and the result you tested. A larger reported total can be interesting, but the workflow also needs accurate, usable records and a clear explanation of uncertain observations.