early_​data

Behavior name: Early Data (0-RTT)

Use this behavior to enable sending early data during the TLS 1.3 handshake between requests from your client and Akamai edge servers. This is available for QUIC connections and Transmission Control Protocol (TCP).

To use Early Data, your certificate needs to support transport layer security (TLS) version 1.3. This ensures your origin server understands the Early-Data header and correctly generates the 425 (Too Early) status code.

Default behavior

These samples reflect the behavior's default settings. You can use these as is in your configurations or make adjustments based on the behavior's available options.

data "akamai_property_rules_builder" "early_data" {
  rules_v2025_02_18 {
    name     = "Early Data (0-RTT)"
    comments = "Sending early data during the TLS 1.3 handshake between requests from your client and Akamai edge servers."
    behavior {
      early_data {
        enabled = false
      }
    }
  }
}

"behaviors": [
  {
    "name": "earlyData",
    "options": {
      "enabled": false
      }
  }
]

Options