M3U8 / HLS Guide
所有または利用権限のある HLS/M3U8 URL を再生し、Manifest、Live/VOD、画質、帯域幅、Codec、HTTP エラーを確認できます。
On this pageManifest and playlist structureCORS and browser security403 / 404HTTPS and codecsLive vs VOD
Manifest and playlist structure
Check whether the top-level playlist loads, then determine whether a child playlist or segment is failing.
CORS and browser security
A browser cannot override CORS, authentication, referrer, IP or geographic restrictions.
403 / 404
403 often indicates authorization or token problems; 404 means a requested resource was not found.
HTTPS and codecs
Use HTTPS resources on an HTTPS page. Codec support can still block playback.
Live vs VOD
Live playlists update continuously; VOD playlists normally remain stable.
FAQ
Can it bypass CORS?
No.
Why can desktop players work?
Browser security and codec rules differ.
Can it show 403/404?
It can surface those HTTP clues.