When the jwplayer().setup() script runs, the first thing the player does is look for the key property. This key is sent to JW Player’s servers to validate the domain hosting the video. 2. Feature Entitlement
If you host the jwplayer.js file on your own servers, you must manually add the key to your code: javascript jwplayer.key = "YOUR_LICENSE_KEY_HERE"; Use code with caution.
There are two primary ways to make your JW Player license key work: Method A: Cloud-Hosted Player (Recommended) jwplayer license key work
A JW Player license key is a unique alphanumeric identifier assigned to your account. It serves three primary purposes:
It verifies that you have a valid subscription (Free, Starter, or Enterprise). When the jwplayer()
If you recently upgraded from a Free to a Paid plan, your browser might be caching the old "Free" version of the player library. Clear your CDN cache or browser cache.
When you use a cloud-hosted library URL (e.g., https://jwplayer.com ), your license key is . Feature Entitlement If you host the jwplayer
It ensures that every "play," "pause," and "complete" event is routed to your specific dashboard. How the License Key Works During Playback
You don’t need to add the key to your HTML. The library knows who you are and what features you paid for automatically. Method B: Self-Hosted Player
Once validated, the server sends back a set of permissions. For example, if you have a license, the "Powered by JW Player" watermark remains. If you have an Enterprise license, the key unlocks advanced features like multi-language audio tracks and custom CSS skinning. 3. Domain Whitelisting