TLS dan transport for FastAPI

high5 checks

TLS protects credentials and session cookies in transit. A valid chain, a modern protocol and no downgrade path are the baseline.

What FastAPI must have

  • Certificate chain validates against public trust stores
  • Expiry monitored automatically, no manual renewal
  • TLS 1.2 and 1.3 only; 1.0 and 1.1 disabled
  • HTTP redirects to HTTPS with a permanent redirect
  • No mixed content on any page

How to fix it

  1. 1Enable auto-renewal with your host or CDN and alert at 21 days remaining
  2. 2Force HTTPS at the edge and remove any route that serves plain HTTP

FastAPI context

Python ASGI framework with automatic OpenAPI documentation.

Auto-generated /docs and /openapi.json can expose internal schemas in production.