Plan requirement
| Subscription | Any plan |
| Access | Admin |
An allowlist limits which domains may show your widget, which stops it appearing where you did not intend.
Set it up
- Open Admin Center, then Channels, then Messaging and social, then Messaging, and click your widget.
- Tick Only allow Web Widget to be installed on these domains and add the domains or subdomains.
- Save and confirm it still appears on your own site.
Why it matters
The widget script is public. Anyone who copies it onto their own page gets a working widget pointing at your support team, and those conversations arrive looking legitimate.
That is rare and not hypothetical. An allowlist closes it.
The other use: rolling out gradually
More common day to day. Allowlisting one section of your site, or a staging domain, lets you start messaging at a volume you can handle and extend once it works.
Include everything you use
Staging domains, a separate help centre domain, any country-specific sites. Forgetting one means the widget silently disappears there, and the first report will come from a colleague rather than a monitor.
Most of that risk goes away with a wildcard: an asterisk before the domain covers every subdomain, so *.yourdomain.com takes in the staging site and the country sites you have not thought of yet.
Check after any website change
A new domain, a migration or a subdomain change breaks the list. Since the failure is the widget not appearing, add this to whatever checklist you use after site changes.
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