The script on
js.krti.com talks to production, the one on sandbox-js.krti.com to the
sandbox. A key only answers on its own environment.
Where to get one
partners.krti.com, Website messaging: create, copy and revoke keys yourself. The page also shows the snippets with your key filled in and a live preview.Rotation
Create the new key, put it on your site, then revoke the old one. A revoked key answers404 key_not_found and the script renders nothing, so revoke only once the new key is live.
You can hold up to five active keys at a time.