Because this is a WEBRip, you need subtitles synced to a 23.976 fps or 24 fps frame rate. Subtitles for "BluRay" releases may work, but they often require a slight time offset (delay or advance) to match the streaming source's timing.
WEBRip , meaning the video was captured or "ripped" from an online streaming service (like Netflix or Max) rather than a physical Blu-ray. subtitle Magic.Mike.XXL.2015.720p.WEBRip.x264.A...
x264 , which is the standard H.264 video compression format used for high-quality, efficient file sizes. Because this is a WEBRip, you need subtitles synced to a 23
Lists various release tags, including GECKOS and YIFY, which are often cross-compatible with general WEBRips. Usage Recommendation x264 , which is the standard H
A popular community-driven site where users often leave comments about whether a subtitle fits a specific "x264" release.
The "A..." likely stands for the release group (e.g., AMZN for Amazon or Anoxmous ). Subtitle Compatibility & Sourcing