Mastodon is a decentralized, open source social network. This is just one part of the network, run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome!
SaaSHub's Down Detector checks the status of services automatically and regularly. However, we cannot promise 100% accuracy. That is why we depend on user reported issues as well. The Tsu status here can help you determine if there is a global outage and Tsu is down for everyone or it is just you that is experiencing problems. Please always report any issues to help others know the current status.