Meaning
Raw records generated by advertising delivery systems that document every interaction between a digital asset and a user device. Ad server log data provides the granular evidence required for financial reconciliation between a publisher and a media buyer. These records capture timestamps, device types, creative IDs, and the specific outcome of each request.
Discrepancies between buyer-side and seller-side logs often trigger contractually defined auditing procedures to resolve billing disputes.
Audit Trail
Documentation of impressions and clicks forms the basis of the final invoice in programmatic and direct sales. While a summary report provides aggregate totals, ad server log data allows for the removal of invalid traffic and duplicate entries. Verification services ingest these files to confirm that the delivery met the technical specifications outlined in the insertion order.
Discrepancy Resolution
Variations in counting methodology between different technology stacks frequently lead to billing mismatches. Standard service level agreements typically permit a margin of error around five percent before a formal investigation begins. Utilizing ad server log data as the source of truth enables parties to identify where the signal loss occurred, such as latency in the creative wrapper or browser-side blocking.
This technical audit protects the margin of the buyer by ensuring payment only for valid views.
Operational Transparency
Granular log files reveal the path an ad takes through the supply chain. Analysis of ad server log data exposes hidden fees and auction dynamics that aggregate dashboards hide. This reporting functions as the primary evidence in transparency audits demanded by major brands.
