When we run a batch test on the entire .se zone (or a random selection of that) we need to add registrar information for the interpretation of the result. For best performance we need that in the test_results table, but there is currently not place for that. We would like to have an extra field, preferably in JSON format to be able to add whatever subfields that we might need.

• Create new field
• Make it possible to add custom data per domain when creating a batch through the API

No other API calls need to support the custom data. For the use case, direct database queries are used to access the test results.