HTTP headers
Via HTTP Header Meaning
Via records intermediaries that handled the message.
Meaning
A proxy or gateway is adding protocol and host information about the forwarding path.
Where it appears
Proxies and gateways add it when forwarding requests or responses.
What to check
Check proxy chains, protocol translation, and whether Via is expected from your CDN or gateway.
Example
Via: 1.1 proxy.exampleReferences
- Registry
- IANA HTTP Field Name Registry
- Guide
- MDN Via