Articles on: Troubleshooting

How to troubleshoot "Invalid website" errors in the chatbox

Fix “invalid chatbox code” or “Invalid Website” errors by checking your domain lock, installation code, and workspace state.

These errors usually come from a mismatch between the installed chatbox code, the domain allowed to load it, and the Crisp workspace that owns the Website ID.

Check the domain lock option

Crisp includes a security option that locks the chatbox to your configured website domain and subdomains. If this option is enabled, other domains cannot load the same chatbox.

For example, if your workspace domain is www.mydomain.com, the chatbox may be rejected on localhost, a preview URL, or another domain.

To disable the domain lock while testing:

Go to Crisp
Open Settings → Chatbox Settings → Chatbox Security
Disable Lock the chatbox to website domain (and sub-domains)
Reload the website where the chatbox is installed

Domain lock setting

Keep the domain lock enabled only when your production domain is stable and you understand the security trade-off. Disable it temporarily for local, staging, or preview-domain tests.

Check the chatbox code

A copy-paste error in the installation code can make Crisp reject the widget. The most important value is CRISP_WEBSITE_ID, which must match the Website ID of your workspace.

Standard Crisp chatbox code shape:

<script type="text/javascript">
window.$crisp=[];
window.CRISP_WEBSITE_ID="XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX";
(function(){d=document;s=d.createElement("script");s.src="https://client.crisp.chat/l.js";s.async=1;d.getElementsByTagName("head")[0].appendChild(s);})();
</script>

The Website ID should follow this format:

XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX

To avoid copying an old ID, copy the current code from Crisp in Settings → Workspace Settings → Setup & Integrations → HTML.

Check whether the workspace still exists

If the workspace was deleted, the Website ID becomes invalid and the chatbox cannot load.

What to check:

Workspace list → go to https://app.crisp.chat/settings/websites/ and confirm the workspace still exists
Installed code → confirm the Website ID belongs to the workspace you want to use
WordPress integration → if you use WordPress, open the Crisp plugin settings and relink the workspace

If the workspace was deleted by mistake, you need to install the chatbox code from an active workspace instead.

Updated on: 03/05/2026

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