> ## Documentation Index > Fetch the complete documentation index at: https://docs.factagora.com/llms.txt > Use this file to discover all available pages before exploring further. # YouTube > Check a video against its captions, with claims tied to the moment they are spoken On a video page, DeepVerify reads the captions, extracts claims along with the timestamp where each was said, and checks them. Press **Start Verifying** in the side panel, or turn on auto-verify to have it start on its own. **A video needs captions.** DeepVerify works from the transcript, so a video with no captions or transcript cannot be checked. Long videos are handled. Transcripts are split into chunks before claim detection, so claims near the end of a multi-hour video are found the same as those at the start. Claims also appear one at a time as each chunk comes back, rather than all at once when the whole transcript is done. ## Timestamps Every claim is tied to a moment in the video. * Clicking a claim seeks the player to that point * The claim currently being spoken is highlighted in the list ## Playback alerts When the video reaches a claim judged `FALSE`, playback pauses and a warning appears over the player. **View Claims** opens the side panel focused on that claim. This only happens on videos scoring below 50 on the [Trust Score](/guides/deepverify/understanding-results#trust-score) — the same boundary that separates *Mixed Reliability* from *Low Reliability*. So the videos that interrupt you are the ones already labeled unreliable, and the alerts do not contradict the tier shown on the card. ## The in-page card A fact-check card can appear below the video itself, showing the Trust Score without opening the side panel. It is on by default and can be turned off in [Settings](/guides/deepverify/settings). ## Pages without a video YouTube's home feed, search results, and channel pages have no video to check, so DeepVerify treats them as ordinary web pages — you can still check the text on them. See [Web pages](/guides/deepverify/modes/web-pages). ## Re-checking Returning to a video you already checked shows the earlier result rather than running again. Use **Check again** for a fresh verdict; the previous one is kept so you can see whether anything changed. See [History](/guides/deepverify/history). ## Next Check speech as it happens Verify videos without pressing anything