Abstract: According to examples, an apparatus may include a hardware processor that may determine throughputs at which servers communicated over a network through execution of throughput tests with the servers. The hardware processor may also identify which of the servers communicated over the network at a throughput that meets or exceeds a predefined throughput and may send identifiers of the servers to a test service provider. The test service provider may, in response to receipt of a request for execution of a throughput test that meets or exceeds the predefined throughput, at least one of output an identifier of at least one of the identified servers to execute the throughput test and select one of the identified servers to execute the throughput test. The hardware processor may also cause a test instrument to execute a throughput test with the identified server at or above the predefined throughput.