Stratum mining is a pooled mining protocol necessary to mine Bitcoin and cryptocurrencies. When configuring your miner we need to know what your mining pool's Stratum URL is so that we can properly configure the miner. Once entered your miner will be able to communicate with the corresponding mining pool. Depending on the pool you are using Compass will auto populate the Stratum URL. If you are using a less common pool then you will be responsible for locating and providing the Stratum URL upon request.
To locate your Pool Stratum URL create a pool account and log in. The URL can be found within your account. Fore more information checkout the Stratum URL Wiki page and our Mining pool configuration page. Here you can learn more about mining pools and how to find your pools' Stratum URL