Cost per incremental indexing result

Distinguish an observed result from an added result

Suppose 100 treated URLs produce 40 new index observations and a comparable 100-URL holdout produces 25. The illustrative difference is 15 URLs, not 40. That difference is a starting estimate of the service contribution; small samples, publisher differences and imperfect checks can still affect it.

Price the whole experiment

Divide the amount spent on the test by the estimated additional results. Include repeat submissions and the selected indexing mode. Keep purchased balance separate from consumed credits: buying a large pack is a cash commitment even when only part is used. Unused credits are not a cash refund.

Use a stopping rule

Set the maximum amount you will spend before the next review. Stop expanding when additional submissions no longer meet your campaign economics. If the holdout catches up later, report both the early time advantage and the final difference rather than selecting only the checkpoint that looks strongest.

Put the guide to work

Create a dated campaign note with the objective, the eligible URLs and the next review date. Follow the related guide below for the next step, then consult the RalfyIndex documentation for service-specific actions.

Sources and scope

Service descriptions are based on the linked public pages reviewed 8 November 2026. Practical workflows are original editorial guidance. Provider claims have not been independently benchmarked here.

• RalfyIndex: features and credit packs
• RalfyIndex: processing modes
• RalfyIndex: terms and refund policy

Continue with the next task

These are related promotional properties in the same RalfyIndex reference collection. They are not independent endorsements.