adaptive_​acceleration

Version: v2025-02-18Includes use: No

Behavior name: Adaptive Acceleration

Adaptive Acceleration uses HTTP/2 server push functionality with Ion properties to pre-position content and improve the performance of HTML page loading based on real user monitoring (RUM) timing data. It also helps browsers to preconnect to content that’s likely needed for upcoming requests. To use this behavior, make sure you enable the http2 behavior. Use the Adaptive Acceleration API to report on the set of assets this feature optimizes.

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" "adaptive_​acceleration" {
  rules_v2025_02_18 {
    name     = "Adaptive Acceleration"
    comments = "Control the settings related to server push functionality."
    behavior {
      adaptive_acceleration {
        source                   = "mPulse"
        enable_preconnect        = true
        preload_enable           = true
        ab_testing               = ""
        abLogic                  = "DISABLED"
        compression              = ""
        enable_ro                = false
        enabl_brotli_compression = true
        enable_for_noncacheable   = false
      }
    }
  }
}
"behaviors": [
  {
    "name": "adaptiveAcceleration",
    "options": {
      "source": "mPulse",
      "enablePreconnect": true,
      "preloadEnable": true,
      "abTesting": "",
      "abLogic": "DISABLED",
      "compression": "",
      "enableRo": false,
      "enableBrotliCompression": true,
      "enableForNoncacheable": false
    }
  }
]

Options

Option Description
source
The source Adaptive Acceleration uses to gather the real user monitoring timing data, either m​Pulse or real​User​MonitoringThe recommended
enable_​push
Recognizes resources like Java​Script, CSS, and images based on gathered timing data and sends these resources to a browser as it's waiting for a response to the initial request for your website or app. See Automatic Server Push for more information.
enable_​preconnect
Allows browsers to anticipate what connections your site needs, and establishes those connections ahead of time. See Automatic Preconnect for more information.
preload_​enable
Allows browsers to preload necessary fonts before they fetch and process other resources. See Automatic Font Preload for more information.
ab_​logic
Specifies whether to use Adaptive Acceleration in an A/B testing environment. To include Adaptive Acceleration data in your A/B testing, specify the mode you want to apply. Otherwise, DISABLED by default. See Add A/B testing to A2 for details. Value is one of:
  • DISABLED. Disables the use of Adaptive Acceleration in the A/B testing environment. This is the default value.
  • CLOUDLETS. Applies A/B testing using Cloudlets.
  • MANUAL. Applies A/B testing by redirecting a request to one of two origin servers, based on the cookie included with the request.
cookie_​name
This specifies the name of the cookie file used for redirecting the requests in the A/B testing environment.
intelligent_​early_​hints
Enable or disable Intelligent Early Hints.
enable_​ro
Enables the Resource Optimizer, which automates the compression and delivery of your .css
enable_​brotli_​compression
Applies Brotli compression, converting your origin content to cache on edge servers.
enable_​for_​noncacheable
Applies Brotli compression to non-cacheable content.