earlyData

Property Manager name: Early Data (0-RTT)
Behavior version: The v2025-07-07 rule format supports the earlyData behavior v1.0.
Rule format status: Deprecated, outdated rule format
Access: Read/Write
Allowed in includes: No (temporarily)

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.

Option Type Description Requires

Option	Type	Description	Requires
`enabled`	boolean	Enables sending early data, which further reduces latency in TLS 1.3 connections.		{"displayType":"boolean","tag":"input","type":"checkbox"}

enabled

boolean

Enables sending early data, which further reduces latency in TLS 1.3 connections.

{"displayType":"boolean","tag":"input","type":"checkbox"}