Can I use Cloudflare CDN with Linguise content?

Yes sure, any CDN will work with Linguise translation.

The only modification you need to make is with Cloudflare WAF system if it has been activated. To return translation, Linguise translation needs to make a call to its own script on your server. You have to whitelist your website IP in the WAF rules.

Linguise is also compatible with Cloudflare rocket loader.