Both PlayStation Network and Twitch appear to be suffering outages today. Twitch has already issued an official statement on the problem, while PSN has not officially responded but appears to be out according to third-party reports.
Twitch Support responded that it is aware of issues impacting Twitch services and it is investigating. PSN has not yet responded, and everything is up and running according to the official site, but it has gotten a spike of reports on the third-party site Down Detector. That means we may see an official acknowledgement soon.
🔎 We are aware of several issues affecting Twitch services.
Our team is aware and hard at work fixing them – we’ll continue to update you, here.
— Twitch Support (@TwitchSupport) December 15, 2021
Down Detector also notes that there may be a widespread outage of Amazon Web Services, which often impacts multiple sites at a time.