Edge Acceleration
  • Site Acceleration
    • Overview
    • Quickly Import and Export Site Configuration
    • Access Control
      • Token Authentication
    • Smart Acceleration
    • File Optimization
      • Smart Compression
    • Network Optimization
      • HTTP/2
      • HTTP/3(QUIC)
        • Overview
        • Enable HTTP/3
        • QUIC SDK
          • SDK Overview
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            • Android
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            • Android
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    • URL Rewrite
      • Access URL Redirection
      • Origin-Pull URL Rewrite
    • Modifying Header
      • Modifying HTTP Response Headers
      • Modifying HTTP Request Headers
    • Custom Error Page
    • Request and Response Actions
      • Processing order
      • Default HTTP Headers of Origin-Pull Requests
      • Default HTTP Response Headers
    • Media Services
      • Audio and Video Pre-pulling
      • Just-in-Time Image Processing
      • Just-in-Time Media Processing
      • VOD Media Origin
  • L4 Proxy
    • Overview
    • Creating an L4 Proxy Instance
    • Modifying an L4 Proxy Instance
    • Disabling or Deleting an L4 Proxy Instance
    • Batch Configuring Forwarding Rules
    • Obtaining Real Client IPs
      • Obtaining Real TCP Client IPs via TOA
      • Obtaining Real Client IPs Through Protocol V1/V2
        • Overview
        • Method 1: Obtaining Real Client IPs Through Nginx
        • Method 2: Parsing Real Client IPs on Application Server
        • Format of Real Client IPs Obtained Through Proxy Protocol V1/V2
      • Transmitting Client Real IP via SPP Protocol
  • Edge DNS
    • Hosting DNS Records
      • Modifying DNS Servers
      • Configuring DNS Records
      • Advanced DNS Configuration
    • Domain Connection
      • Adding A Domain Name for Acceleration
      • Ownership Verification
      • Modifying CNAME Records
    • Domain alias
      • Overview
      • Configuration Guide
      • Batch Connecting SaaS Domain Names
      • Configuring Alias Domain Names for Disaster Recovery
    • Traffic Scheduling
      • Traffic Scheduling Management
    • Origin Configuration
      • Origin-pull configuration
        • Configuring Origin-Pull HTTPS
        • Host Header Rewrite
        • Controlling Origin-pull Requests
        • Redirect Following During Origin-Pull
        • HTTP/2 Origin-Pull
        • Range GETs
      • Load Balancing
        • Overview
        • Quickly Create Load Balancers
        • Health Check Policies
        • Viewing the Health Status of Origin Server
        • Related References
          • Load Balancing-Related Concepts
          • Introduction to Request Retry Strategy
      • Origin Group Configuration
      • Related References
        • ld Version Origin Group Compatible Related Issues
      • Collect EdgeOne origin-pull node IP
  • Edge Cache
    • Overview
    • EdgeOne Cache Rules
      • Content Cache Rules
      • Cache Key Introduction
      • Vary Feature
    • Cache Configuration
      • Custom Cache Key
      • Node Cache TTL
      • Status Code Cache TTL
      • Browser Cache TTL
      • Offline Caching
      • Cache Prefresh
    • Clear and Preheat Cach
      • Cache Purge
      • URL Pre-Warming
    • How to improve the Cache Hit Rate of EdgeOne
  • Rules Engine
    • Overview
    • Supported Matching Types and Actions
    • Rule Management
    • variables
Docs Overview/
Edge Acceleration/
Site Acceleration/
Network Optimization/
HTTP/2/

HTTP/2

What is HTTP/2?

EdgeOne supports clients to initiate requests using the HTTP/2 protocol. HTTP/2 (i.e., HTTP 2.0, the second version of the Hypertext Transfer Protocol) is the second major version of the HTTP protocol, which can effectively reduce network latency and improve site page loading speed.
Note：
1. If the client request does not use HTTP/2, EdgeOne is compatible with HTTP 1.x protocol access.
2. For configuring access requests, please refer to this document. If you need to configure HTTP/2 to follow the origin, please refer to HTTP/2 origin-pull.
3. Starting from November 23, 2023, for security reasons (for details, see Protection against DDoS attacks targeting HTTP/2 protocol vulnerabilities), the HTTP/2 will be disabled by default for incremental sites, and users may enable it as needed.

Prerequisites

The access domain name of the current site has been configured with an SSL certificate. For how to configure an SSL certificate, please refer to: Certificate Configuration.

Directions

Scenario 1: Modify HTTP/2 support for all domain names of the site

If you need to enable or disable HTTP/2 for the whole connected site, please follow the steps below:
1. Log in to the EdgeOne console and click Site List in the left sidebar.In the site list, click the target Site.
2. On the site details page, click Site Acceleration to enter the global site configuration page. Then click Network Optimization in the right sidebar.
3. Locate the HTTP/2 configuration card. This protocol is disabled by default. Toggle the switch to enable it.


Scenario 2: Enable HTTP/2 for a specified domain name

If you only need to enable or disable HTTP/2 for a specified domain name, please follow the steps below:
1. Log in to the EdgeOne console and click Site List in the left sidebar.In the site list, click the target Site.
2. On the site details page, click Site Acceleration to enter the global site configuration page. Then click the Rule Engine tab.
3. On the rule engine management page, click Create rule and select Add blank rule.
4. On the rule editing page, select the Host matching type to match requests for the specified domain name.
5. Click Action, and in the pop-up operation list, select the operation as HTTP/2. Click the switch to enable/disable.

6. Click Save and Publish to complete the rule configuration.