When using custom domains, the CDN serves as a reverse proxy, meaning that the client IP is obscured and instead Auth0 sees the requests as coming from the CDN egress IP. Is it possible to forward the original client IP so it can be logged and used for IP whitelisting decisions?

Is it possible to see the client IP when using custom domains?

dag February 12, 2025, 7:06pm 3

Use this param here:
custom_client_ip_header

Topic		Replies	Views
Patch-custom-domains-by-id: custom_client_ip_header allowlist is undocumented Product Feedback auth0	0	208	June 17, 2024
ETA on logging of auth0-forwarded-for IPs Get Help login	2	3937	August 26, 2019
Get client original API address in a custom login action script Get Help ip , database-action-scri	8	5580	January 7, 2020
Can't see clientIP in logs even after setting the `auth0-forwarded-for` header Get Help auth0 , api	3	4326	July 24, 2019
IP field in auth0 logs does not show client IP when using server api calls Get Help logs , grants , client-metadata , ip	8	7209	March 2, 2018