Referrer Test – Debug Video Referrer & Header Behavior

Test how video streams respond to different referrer policies. Adjust the page's referrer meta tag, toggle referrer sending, and check if a stream is blocked based on the requesting domain.

Other Tools:HLS MP4 DASH YouTube Vimeo

Active format: HLS

Space K M F

0:00 / 0:00

Debug Panel

Idle

Events logged: 0

Errors: 0

Playback

Autoplay

Muted

Plays Inline

Gather info before playback

Runs a HEAD/GET prefetch to inspect HTTP status & Content-Type before the player starts

Referrer Policy

Send Referrer

Note:Browsers don't allow JavaScript to set custom HTTP headers on video requests. Full header control requires a server-side proxy.

Preload Strategy

Only load duration/dimensions (default)

How VideoLab Works

Three steps to test and debug any video stream

Paste a URL or Upload a File

Drop a link or drag a file right into the player. We'll detect the format and start loading the video.

Watch Diagnostics Update Live

As the video plays, the debug panel tracks the connection status, resolution, bitrate, and network events as they happen.

Share or Export Your Logs

Generate a shareable URL to let someone else see your exact test environment, or download a JSON debug log to review later.

Understanding Referrer-Based Video Blocking

Many CDNs and stream hosts check the HTTP Referer header to prevent hotlinking — embedding their videos on other sites. If you see a video that works when opened directly but fails when embedded, a referrer restriction is likely the cause. Use the Referrer Panel to test different policies.