Dub’s API rate limiting is in conformance with the IETF standard:

Header NameDescription
X-RateLimit-LimitThe maximum number of requests that the consumer is permitted to make per hour.
X-RateLimit-RemainingThe number of requests remaining in the current rate limit window.
X-RateLimit-ResetThe time at which the current rate limit window resets in UTC epoch seconds.
Retry-AfterThe number of seconds to wait before retrying the request again.

Dub’s API is capped at 10 requests per second per user.

This is implemented to ensure a fair usage policy so that excessive use by a single user does not adversely affect the performance and usage of the API by others.

You’ll receive a 429 Too Many Requests response code if the rate limit is exceeded.