Why playlists can be sensitive
Addresses may contain account identifiers, temporary signatures or service-specific tokens. Channel names can also reveal interests or subscriptions. Uploading a list to an unknown checker transfers all of that data, even if the page appears to return only a simple count.
What local parsing can do
JavaScript can read a selected file in memory, identify EXTINF entries, group names, duplicate addresses and missing metadata, then create a diagnostic summary. AdiosTV does not need to send the text to an API, and the report should redact query strings when showing examples.
Remote files have a boundary
A browser can fetch a remote playlist only when its host permits cross-origin access. If it does not, the safe fallback is to download the file yourself and open it locally—not send the address through a universal server proxy. Close the page to clear the in-memory analysis.