Queue a SimilarWeb traffic analytics batch

Domains and URLs are normalized and deduplicated before the 1,000-domain limit is applied. Raw input is capped at 2,000 entries to bound request parsing and normalization work. The response is non-billable. Each successful domain consumes one credit when its result is stored. Failed domains do not consume credits. Invalid entries do not fail the batch. They are listed in rejected with their index and error and are never charged. The request returns 422 only when no valid domain is left or a limit is exceeded.