I don't think it should be registrar's duty to shut domains down. Gitbook appears to use CloudFlare to host DNS, and likely to use their CDN/proxy, which makes

I don't think it should be registrar's duty to shut domains down. Gitbook appears to use CloudFlare to host DNS, and likely to use their CDN/proxy, which makes them the actual "host" of the content. If there is any phishing, they should be the ones responsible. The post says even their email was down. I'm deciding to not use Google Domains anymore.