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.
How VideoLab Works
Three steps to test and debug any video stream
Paste a URL or Upload a File
Enter any MP4, M3U8, MPD, YouTube, or Vimeo URL — or drag & drop a local video file directly into the player.
Hit Play & Watch Diagnostics Update Live
The player starts streaming instantly. The debug panel tracks connection status, resolution, bitrate, codec, and every network event in real time.
Share or Export Your Debug Log
Generate a shareable URL to reproduce the exact test, or export a full JSON debug log with timestamps, errors, and stream info.
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.