OpenRTB 2.1
What this release is
OpenRTB 2.1 was a consolidation release: it clarified how VAST video rides in RTB transactions (including impressions that can sell as either banner or video), added IAB Tier-2 content categories, and introduced location-source provenance so a buyer can tell GPS-derived coordinates from ZIP-derived ones.
Available coverage
- Release documentation
- Available
- Extracted object catalog
- Available
- JSON Schemas
- Available
- Exact-snapshot validation
- Supported
What changed in 2.1
| Change | Kind | Summary |
|---|---|---|
| enum.content_category.tier2 | Added list | OpenRTB 2.1 added support for IAB Tier-2 content categories. |
| geo.type | Added field | OpenRTB 2.1 differentiated location-source provenance, such as GPS versus ZIP-derived targeting. |
| imp.video | Added behavior | OpenRTB 2.1 clarified VAST video support in RTB transactions, including mixed banner-or-video impressions. |
Validate against 2.1
The tester can pin validation to this exact revision, so deprecated, moved, and not-yet-available findings reflect what 2.1 actually says. The same pin works in the CLI: rtblint validate --version 2.1 request.json.
Adjacent versions
- Previous: OpenRTB 2.0
- Next: OpenRTB 2.2
- All versions: version index
- Migrating across the big steps: 2.5 vs 2.6 and 2.6 vs 3.0