Release Notes and Announcements
- Release Notes
- Security Announcement
  - Protection against DDoS attacks targeting HTTP/2 protocol vulnerabilities
- Announcements
  - EdgeOne Console Upgrade Instructions
  - 【Tencent Cloud EdgeOne】Cloud API Change Notification
Product Introduction
- Overview
- Strengths
- Use Cases
Purchase Guide
- Billing Overview
- Basic Service Fees
  - Plan Fees
  - Fees for Out-of-plan Resource Usage (Pay-as-You-Go)
- Value-added Service Fees
- Related Tencent Cloud Services
- Extra Package Description (Prepaid)
- Subscriptions
  - Purchase Guide
  - Extra Package Purchase Guide
- Renewals
  - Renewal Guide
  - Extra Package Auto-renewed Guide
- Overdue and Expiration Policies
- Refund Policy
- Usage Cap Policy
- EdgeOne Plan Upgrade Guide
- Comparison of EdgeOne Plans
- Billing Usage
- About "clean traffic" billing instructions
Getting Started
- Quick Start
- Quick access to L4 proxy service
Domain Service
- Hosting DNS Records
- Domain Connection
- HTTPS Certificate
  - Overview
  - Deploying/Updating SSL Certificate for A Domain Name
  - Configuring A Free Certificate for A Domain Name
  - HTTPS Configuration
    - Forced HTTPS Access
    - Enabling HSTS
    - SSL/TLS Security Configuration
      - Configuring SSL/TLS Security
      - TLS Versions and Cipher Suites
    - Enabling OCSP Stapling
- Domain alias
- Traffic Scheduling
  - Traffic Scheduling Management
Site Acceleration
- Overview
- Access Control
  - Token Authentication
- Smart Acceleration
- Cache Configuration
  - Overview
  - EdgeOne Cache Rules
  - Cache Configuration
  - Clear and Preheat Cach
    - Cache Purge
    - URL Pre-Warming
  - How to improve the Cache Hit Rate of EdgeOne
- File Optimization
  - Smart Compression
- Media processing
  - Image Processing
- Network Optimization
  - HTTP/2
  - HTTP/3(QUIC)
    - Overview
    - Enable HTTP/3
    - QUIC SDK
      - SDK Overview
      - SDK Download and Integration
      - Sample Code
        Android
        iOS
      - API Documentation
        Android
        iOS
  - IPv6 Access
  - Maximum Upload Size
  - WebSocket
  - Client IP Geolocation Header
  - Client IP Geographical Location
  - gRPC
- 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
Origin Configuration
- Load Balancing
- Origin Group Configuration
- Origin-pull configuration
- Related References
  - ld Version Origin Group Compatible Related Issues
  - VOD Origin Server Details
- Collect EdgeOne origin-pull node IP
Edge Functions
- Overview
- Getting Started
- Operation Guide
  - Function Management
  - Function Trigger
- Runtime APIs
- Sample Functions
- Best Practices
  - Adaptive Image Format Conversion via Edge Functions
Security Protection
- Overview
- DDoS Protection
  - DDoS Protection Overview
  - Exclusive DDoS Protection Usage
  - Configuration of Exclusive DDoS protection Rules
- Web Protection
- Bot Management
  - Overview
  - Bot Intelligent analysis
  - Bot Basic Feature Management
  - Client Reputation
  - Active Detection
  - Custom Bot Rule
  - Bot Exception Rule
  - Related References
    - Action
- Rules Template
- IP and IP Segment Grouping
- Origin Protection
- Custom Response Page
- Alarm Notification
Rule Engine
- Overview
- Supported Matching Types and Actions
- Rule Management
- variables
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
Data Analysis&Log Service
- Log Service
  - Overview
  - Real-time Logs
  - Offline Logs
  - Related References
    - Field description
      - L7 Access Logs
      - L4 Proxy Logs
    - Real-Time Log Push Filter Conditions
    - Custom Log Push Fields
- Data Analysis
  - Overview
  - Traffic Analysis
  - Cache Analysis
  - Security Analysis
    - Site Security Overview
    - Web Security Analysis
  - L4 Proxy
  - DNS Resolution
  - Related References
- Analytics
Tool Guide
- Diagnostic Tool
  - Self-service debugging
- Speed Test Tools
  - Real User Monitoring
- Terraform
- IP Location Query
Practical Tutorial
- EdgeOne initiates Automatic Warm-up
- Cross-regional Secure Acceleration (Oversea Sites)
- Scheduling Traffic to EdgeOne by Performing Canary Switching
- Through traffic orchestration to multiple service providers
API Documentation
- History
- Introduction
- API Category
- Making API Requests
  - Request Structure
  - Common Params
  - Signature v3
  - Signature
  - Responses
- Site APIs
  - CreateZone
  - DescribeIdentifications
  - ModifyZone
  - DeleteZone
  - ModifyZoneStatus
  - CheckCnameStatus
  - IdentifyZone
  - DescribeZones
  - VerifyOwnership
- Acceleration Domain Management APIs
  - CreateAccelerationDomain
  - DescribeAccelerationDomains
  - ModifyAccelerationDomain
  - ModifyAccelerationDomainStatuses
  - DeleteAccelerationDomains
  - CreateSharedCNAME
  - BindSharedCNAME
  - DeleteSharedCNAME
- Site Acceleration Configuration APIs
  - CreateRule
  - DeleteRules
  - DescribeHostsSetting
  - DescribeRules
  - DescribeRulesSetting
  - DescribeZoneSetting
  - ModifyRule
  - ModifyZoneSetting
- Alias Domain APIs
  - CreateAliasDomain
  - DescribeAliasDomains
  - ModifyAliasDomain
  - ModifyAliasDomainStatus
  - DeleteAliasDomain
- Security Configuration APIs
  - CreateSecurityIPGroup
  - DescribeSecurityIPGroup
  - ModifySecurityIPGroup
  - DeleteSecurityIPGroup
  - DescribeOriginProtection
  - DescribeSecurityTemplateBindings
  - ModifySecurityPolicy
  - BindSecurityTemplateToEntity
  - DescribeSecurityIPGroupInfo
- Layer 4 Application Proxy APIs
  - CreateL4Proxy
  - ModifyL4Proxy
  - ModifyL4ProxyStatus
  - DescribeL4Proxy
  - DeleteL4Proxy
  - CreateL4ProxyRules
  - ModifyL4ProxyRules
  - ModifyL4ProxyRulesStatus
  - DescribeL4ProxyRules
  - DeleteL4ProxyRules
  - CreateApplicationProxy
  - ModifyApplicationProxy
  - ModifyApplicationProxyStatus
  - DescribeApplicationProxies
  - DeleteApplicationProxy
  - CreateApplicationProxyRule
  - ModifyApplicationProxyRule
  - ModifyApplicationProxyRuleStatus
  - DeleteApplicationProxyRule
- Content Management APIs
  - CreatePurgeTask
  - DescribePurgeTasks
  - CreatePrefetchTask
  - DescribePrefetchTasks
  - DescribeContentQuota
- Data Analysis APIs
  - DescribeDDoSAttackData
  - DescribeDDoSAttackEvent
  - DescribeDDoSAttackTopData
  - DescribeOverviewL7Data
  - DescribeTimingL4Data
  - DescribeTimingL7AnalysisData
  - DescribeTopL7AnalysisData
  - DescribeTimingL7CacheData
  - DescribeTopL7CacheData
- Log Service APIs
  - DownloadL7Logs
  - DownloadL4Logs
  - CreateCLSIndex
  - CreateRealtimeLogDeliveryTask
  - ModifyRealtimeLogDeliveryTask
  - DeleteRealtimeLogDeliveryTask
  - DescribeRealtimeLogDeliveryTasks
- Billing APIs
  - CreatePlan
  - UpgradePlan
  - RenewPlan
  - ModifyPlan
  - IncreasePlanQuota
  - DestroyPlan
  - CreatePlanForZone
  - BindZoneToPlan
  - DescribeBillingData
  - DescribeAvailablePlans
- Certificate APIs
  - DescribeDefaultCertificates
  - ModifyHostsCertificate
- Load Balancing APIs
  - CreateOriginGroup
  - ModifyOriginGroup
  - DeleteOriginGroup
  - DescribeOriginGroup
- Custom Response Page APIs
  - CreateCustomizeErrorPage
  - DescribeCustomErrorPages
  - ModifyCustomErrorPage
  - DeleteCustomErrorPage
- Diagnostic Tool APIs
  - DescribeIPRegion
- Version Management APIs
  - CreateConfigGroupVersion
  - DeployConfigGroupVersion
  - DescribeConfigGroupVersionDetail
  - DescribeConfigGroupVersions
  - DescribeDeployHistory
  - DescribeEnvironments
- Data Types
- Error Codes
FAQs
- Reference for Abnormal Status Codes
- Product Features FAQs
- Domain Service FAQs
- Site Acceleration FAQs
- Data and Log FAQs
- Security Protection-related Queries
Agreements
- Service Level Agreement
TEO Policy
- Privacy Policy
- Data Processing And Security Agreement
Contact Us
Glossary

Returning an HTML Page

In this example, an edge function is used to generate an HTML page, and the HTML page is accessed and previewed from a browser.
Sample Code
const html = `
  <!DOCTYPE html>
  <body>
    <h1>Hello World</h1>
    <p>This markup was generated by TencentCloud Edge Functions.</p>
  </body>
`;
﻿
async function handleRequest(request) {
  return new Response(html, {
    headers: {
      'content-type': 'text/html; charset=UTF-8',
      'x-edgefunctions-test': 'Welcome to use Edge Functions.',
    },
  });
}
﻿
addEventListener('fetch', event => {
  event.respondWith(handleRequest(event.request));
});
Sample Preview
In the address bar of the browser, enter a URL that matches a trigger rule of the edge function to preview the effect of the sample code.
﻿
References
Runtime APIs: addEventListener
Runtime APIs: Response
Runtime APIs: FetchEvent