Understanding limits to ensure server performance
While you are able to invite unlimited candidates on Coderbyte, we do have several limits for server performance reasons. Less than 1% of our customers ever approach any of the limits.
Daily limits
There is a daily limit of 500 candidates across all assessments.
We're proud to support many platforms with higher concurrency requirements. Due to the advanced server configuration required for high volume code runners, we require such customers to be on our Enterprise tier which includes dedicated premium servers, prioritized support, an assigned account manager, and access to all of our features.
During a trial period the candidate limit is set to 5.
Concurrency limits
While you can invite up to 500 candidates per day, you cannot invite that many candidates simultaneously to take an assessment. There is a concurrency limit of 50 candidates that can take your assessments at a given time. This is an account-wide limit, not a limit per assessment.
This means you can invite 500 candidates at the same time, but only 50 will be allowed to enter and take an assessment. The rest will be in a virtual waiting room and told to retry entering the assessment in a few minutes.
Once candidates start leaving or completing the assessment, more candidates will be able to click begin to start their assessments.