Open the video page and check the upload date shown under the title or in the description
If the date is hidden, use the page source or video metadata tools to find the original upload date
Check the YouTube Data API if you have access to the video ID
Look for the first indexed date in search results or cached pages
Check the video’s earliest comments, likes, or community references to estimate when it became public
Use the Wayback Machine to see when the video page first appeared publicly
Compare the video’s URL or ID with archive snapshots to find when it was unprivated
Check social media posts, embeds, or reposts that mention the video becoming available
Look at the channel’s upload history around that period for context
If the video was private before, compare archive records before and after it became accessible
Use third-party tracking sites that record YouTube visibility changes if available
Check whether the video appears in playlists, search, or recommendations after a certain date
Review the video’s published time in browser developer tools if the page exposes it
If you own the video, check YouTube Studio analytics and visibility history for the exact change date