1. Is the snippet on the page?
View source on the page (Ctrl-U / Cmd-U) and search for mylivechat. If it's missing, the snippet didn't paste correctly — try again.
2. Are you blocking JS or third-party scripts?
Some ad-blockers and Content Security Policies block third-party scripts. Open DevTools -> Console and look for blocked-script errors.
3. Does your CSP allow our domain?
If you have a Content-Security-Policy header, add:
script-src 'self' https://*.mylivechat.com;
connect-src 'self' https://*.mylivechat.com wss://*.mylivechat.com;
frame-src 'self' https://*.mylivechat.com;
4. Is the launcher hidden by your CSS?
Search your stylesheets for mlc- or livechat3 — sometimes a homemade rule accidentally targets the launcher container.
5. Are operators offline AND visitor messaging is off?
By default, when no operators are online and Allow offline messaging is off, the launcher hides itself. Either turn the toggle on, or stay logged in.
If none of these fix it, open a chat and we'll debug live.