Client response
- resp.body_bytes_written — Total HTTP body bytes written to the client
- resp.bytes_written — Total bytes written to the client
- resp.completed — Whether the request completed
- resp.header_bytes_written — Total HTTP header bytes written to the client
- resp.headers — Collection of HTTP headers sent to the client
- resp.http.{NAME} — HTTP headers by name sent to the client
- resp.is_locally_generated — Whether request handling went through vcl_error
- resp.proto — HTTP protocol and version sent to the client
- resp.response — HTTP response phrase sent to the client
- resp.status — HTTP status code sent to the client
- time.to_first_byte — Time since the request started up to entering
vcl_deliver
