Can DELETE queries be considered safe for re-execution without data changes?

DELETE requests in HTTP are considered idempotent, which means that executing the same DELETE request repeatedly should not result in a change in the server's state after the first successful deletion. That is, if the resource is already deleted, a subsequent DELETE request will not alter the data.

However, in practice, this depends on the server implementation and business logic. For example, if deleting a resource triggers side effects (logging, cascading deletion of related data, changes in other systems), a repeated request may lead to changes.

Therefore, from the perspective of the HTTP standard, DELETE requests can be considered safe to repeat without changing data, but specific applications should consider implementation details.