If you are looking to watch this episode legally and in high quality, Where to Watch Officially
You can purchase individual episodes or full seasons on platforms like Amazon Prime Video, Apple TV , and Google TV. Decoding the File Name Watch Titans S03E01 WEBRip x264-ION10 1
This refers to the video compression standard used. It’s a very common format that works on almost any modern device. If you are looking to watch this episode
The string you provided is a "release name" that tells a downloader exactly what they are getting: Season 3, Episode 1. Watch Titans S03E01 WEBRip x264-ION10 1
The video was captured from a streaming service (like Max) rather than a physical Blu-ray (BDRip).
This is the name of the "release group" that encoded and uploaded the file. Season 3 Episode 1: "Lazarus"