What is Removal ledger?
Verified 5 August 2026
Most indexes remove documents silently. That makes absence ambiguous: a missing URL could have been rejected, dropped, superseded or never crawled, and nothing distinguishes them.
An append-only ledger with typed reasons — redundant, superseded, stale, access-starved, lost-replacement, tombstoned-source — makes absence explainable. For regulated buyers it is the difference between "we searched" and "here is what was considered and what was excluded".
How unlob handles this: Coverage transparency
Common questions
What is Removal ledger?
A removal ledger is an append-only record of every document removed from an index, with the reason and any replacement.
How does Removal ledger work in practice?
An append-only ledger with typed reasons — redundant, superseded, stale, access-starved, lost-replacement, tombstoned-source — makes absence explainable. For regulated buyers it is the difference between "we searched" and "here is what was considered and what was excluded".
See it working
The free tier is 10,000 requests a month with no card — enough to test any of this against your own queries.