Video Call Readiness Check
Check your speakers, microphone, camera and connection in one flow before a video call. Each step starts only when you press its button.
Whether the browser can play a test tone that you confirm, receive a microphone signal, receive a camera picture, and complete short latency and transfer measurements to this site. Press each button in turn. Your browser asks for microphone or camera permission only when you press the matching button. The connection step uses about 5 MB.
What does this test measure?
Whether the browser can play a test tone that you confirm, receive a microphone signal, receive a camera picture, and complete short latency and transfer measurements to this site.
How do you run the test?
Press each button in turn. Your browser asks for microphone or camera permission only when you press the matching button. The connection step uses about 5 MB.
How should results be interpreted?
Items marked as working succeeded in this browser just now. Items that need attention explain what to check, such as mute settings, privacy shutters or the selected device.
Technical limitations
This does not test Zoom, Meet, Teams or any call app and cannot guarantee that a call will work. The speaker step relies on what you hear, and the connection step measures only the path to this site.
Why can the score decrease?
Unstable measurements, denied permissions, unsupported browser APIs, background load, power saving, or an incomplete test can affect the result. When a score changes, the result screen explains the reason.
What should you do if a problem is found?
Check the system volume and the selected audio and camera devices, close apps that use the camera or microphone, allow the permission in the browser site settings, and try again.
Example Result Explanation
Frequently Asked Questions
Does this test provide a definitive hardware diagnosis?
No. The test measures signals the browser can safely access and clearly explains its technical limits.
Why can results change between runs?
Background applications, power mode, network conditions, permissions, and operating-system timing can affect results.
How should I repeat the test if I see a problem?
Repeat it on the same device and browser while changing only one condition, so the source of the difference is easier to identify.