Configure Zitadel with Cloudflare

Settings

• Make sure HTTP/2 is enabled
• Verify that gRPC is enabled
• Verify that traffic is proxied through Cloudflare
• Configure Zitadel to use the TLS Mode enabled

<Callout> [Cloudflare does only support gRPC with TLS!](https://support.cloudflare.com/hc/en-us/articles/360050483011-Understanding-Cloudflare-gRPC-support) </Callout>

Troubleshooting

If something is not working please check the Cloudflare WAF rules for potential violations. These two rules are known to be triggered:

• 100001 Anomaly:Header:User-Agent - Missing Cloudflare Specials
• 100004 Anomaly:Header:User-Agent, Anomaly:Header:Referer - Missing or empty