Content Delivery Network
Content Delivery Network
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What's New
Function Overview
Product Bulletin
Service Termination Policy Function Will Be Taken Offline
Huawei Cloud CDN Will Verify the Ownership of All Domain Names
Huawei Cloud CDN Will Add a Log Field
Huawei Cloud CDN Will Adjust the Cache Logic of Status Code 400
Huawei Cloud CDN Will No Longer Maintain the Log Combination Tool
Huawei Cloud CDN Will Take the Old Analytics Offline
Service Overview
What Is Huawei Cloud CDN?
How CDN Works
PoP Distribution
Advantages
Application Scenarios
Performance Metrics
Basic Concepts
Notes and Constraints
Security
Shared Responsibilities
Data Protection Technologies
Audit and Logging
Permissions Management
Related Services
Change History
Billing
Billing Items
Basic Service Billing
Billing by Traffic
Billing by Peak Bandwidth
Billing by 95th Percentile Bandwidth
Billing by Average Daily Peak Bandwidth
Value-added Service Billing
Prepaid Resource Packages
Prepaid Traffic Packages
Packages of Whole Site Acceleration Requests
Billing Examples
Changing the Billing Option
Traffic Package Renewal
Expiration and Overdue Payment
Bills
Cost Management
Stopping Billing
High Bill Risk Warning
Billing for Whole Site Acceleration
OBS Billing for CDN Acceleration
Billing FAQ
Change History
Getting Started
Domain Name Requirements
Overview
Before You Access CDN
Access Process
Enabling CDN
Enabling WSA
Adding a Domain Name
Verifying the Domain Name Ownership
(Optional) Testing a Domain Name
(Optional) Recommended Configurations
Configuring a CNAME Record
Overview
Adding a CNAME Record on Huawei Cloud DNS
Checking Whether the CNAME Record Has Taken Effect
FAQ
User Guide
Domain Name Management
Overview
Enabling/Disabling CDN for a Domain Name
Deleting a Domain Name
Reviewing a Domain Name
Service Termination Policy
Domain Name Quota Management
Custom Domain Name Configuration
Overview
OBS Authorization
Copying Domain Configurations
Copying Domain Configurations to Existing Domains
Copying Domain Configurations to New Domains
Basic Settings
Overview
Modifying the Service Type
Modifying the Service Area
Modifying Origin Server Settings
Modifying the Host Header
Allowing Clients to Access CDN Using IPv6
Origin Settings
Overview
Origin Protocol
Origin SNI
Origin URL Rewrite
Advanced Origins
Range Requests
Redirect from Origin
ETag Verification
Origin Response Timeout
Origin Request Headers
Dynamic Content Pull Mode
HTTPS Settings
Overview
SCM Authorization
Configuring an HTTPS Certificate
HTTPS Certificate Requirements
HTTPS Certificate Format Conversion
TLS Versions
Force Redirect
HSTS
HTTP/2
OCSP Stapling
QUIC
Client Certificates
Cache Settings
Overview
PoP Cache Rules
Browser Cache TTL
Status Code Cache TTL
Access URL Rewrite
Shared Cache Groups
Access Control
Overview
Referer Validation
IP ACL
User-Agent ACL
Geo-blocking
Token Authentication
Signing Method A
Signing Method B
Signing Method C1
Signing Method C2
Remote Authentication
IP Access Frequency
Advanced Settings
Overview
HTTP Header Settings (Cross-origin Requests)
Custom Error Pages
Smart Compression
WebSocket
Request Rate Limiting
Usage Cap
Video Settings
Video Seek
Tag Management
Resource Package Management
Cache Prefetch and Purge
Overview
Cache Prefetch
Cache Purge
Viewing Task Progresses
FAQ
Analytics
Statistics Description
Traffic
Requests
Origin
Data Analysis
Regions & Carriers
Status Codes
Whole Site Acceleration
Data Export
Operations Reports
Cloud Eye Monitoring
FAQ
Analytics (New)
Service Monitoring
Access Requests
Origin Pulls
Hit Ratios
Status Codes
Cloud Eye Monitoring
Monitoring Dashboard
Data Analysis
Operations Reports
Report Subscription
Traffic Query
Query
Summary
Whole Site Acceleration
Data Export
Log Management
Domain Certificate Management
IP Address Check
Security
Permissions Management
Creating a User and Granting CDN Permissions
Creating a Custom Policy
Enterprise Projects
Auditing
Monitoring
CDN Metrics
Setting Alarm Rules
Viewing Monitoring Metrics
Best Practices
Accelerating Delivery of OBS Resources
Solution Overview
Configuration Process
Configuring a Policy for a Custom OBS Private Bucket
Synchronizing Data Stored on Multiple Clouds
FAQ
Accelerating Access to Websites Built on ECSs
Accelerating Delivery of Resources Protected by WAF
Setting the Cache TTL
Improving the Cache Hit Ratio
Obtaining Real IP Addresses of Users
Change History
API Reference
Before You Start
API Overview
Calling APIs
Making an API Request
Authentication
Response
API
Domain Name Operations
Creating a Domain Name
Listing Domain Names
Deleting a Domain Name
Enabling CDN for a Domain Name
Disabling CDN for a Domain Name
Querying a Domain Name
Verifying the Domain Name Ownership
Querying the Ownership Verification Information of a Domain Name
Domain Name Configuration
Querying IP Address Information
Modifying the Status of Private Bucket Access
Associating a Certificate with Multiple Domain Names
Querying All Domain Names Associated with HTTPS Certificates
Listing Resource Tags
Creating a Resource Tag
Deleting a Resource Tag
Copying Domain Configuration
Modifying the Full Domain Configuration
Querying Domain Name Configuration
Analytics
Querying Domain Name Statistics by Region and Carrier
Querying Domain Name Statistics
Querying Top 100 URLs
Querying Details About Top 100 Referers
Billing Management
Querying the Billing Option
Configuring the Billing Option
Quotas
Querying Quotas
Log Management
Querying Logs
Cache Purge and Prefetch
Creating a Cache Purge Task
Creating a Cache Prefetch Task
Querying Cache Purge and Prefetch Tasks
Querying a Cache Purge or Prefetch Task
Querying Cache Purge and Prefetch Records
Out-of-Date APIs
Domain Name Configuration
Enabling or Disabling Range-based Retrieval
Enabling or Disabling Redirect Retrieval
Configuring a Referer List
Querying a Referer List
Querying Details About an ACL
Setting an ACL
Configuring a Cache Rule
Querying a Cache Rule
Configuring HTTPS Settings
Querying HTTP Settings
Adding or Modifying Response Headers
Querying Response Headers
Modifying Origin Server Details
Modifying the Host Header
Querying a Retrieval Host
Statistics Analysis
Querying the Total Network Traffic
Querying Details of Network Traffic
Querying the Peak Bandwidth Value
Querying Details of Network Bandwidth
Querying Consumption Summary
Querying Consumption Details
Querying Consumption of Each Domain Name
Querying Domain Consumption by Region
Querying Domain Consumption by Carrier
Querying Statistics About Each Domain Name Under a Region or Carrier
Querying Statistics About Domain Names Under a Region or Carrier
Querying Statistics About Domain Names by Region and Carrier
Querying Statistics About Domain Names
Downloading a Statistical Metric Table
Querying Top Domain Names
Querying Peak Bandwidth Data of a Domain Name
Downloading a Table of Statistics by Region and Carrier
Refreshing and Preheating (Old Version)
Creating a Cache Refreshing Task
Creating a Cache Preheating Task
Domain Name Operations
Querying Details About a Domain Name
Examples
Adding an Acceleration Domain Name
Creating a Cache Refreshing or Preheating Task
Permissions Policies and Supported Actions
Introduction
API Permissions
Appendix
Status Codes
Error Codes
Obtaining a Project ID
Obtaining an Account ID
Areas
Carriers
Country and Region Description
Geographical Location Codes
SDK Reference
SDK Overview
FAQs
Functions
What Is Whole Site Acceleration?
What Service Types Does CDN Support?
Does CDN Support DNS, HTTPDNS, and IP302 Scheduling?
Which Protocols Does CDN Support?
Does On-Demand Service Acceleration Support HLS and RTMP?
Can CDN Identify Whether a User Is on a Desktop or Mobile Device?
Does CDN Support Acceleration for a Single Web Page?
Does CDN Support Binary File Acceleration?
Does CDN Support Level-2 Domain Name Acceleration?
Does CDN Accelerate POST Requests?
Does CDN Have a Speed Limit?
Does CDN Accelerate Local Access to Shopping Websites?
What Origin Types Does CDN Support?
Does CDN Support Domain Names That Contain Chinese Characters?
Does Huawei Cloud CDN Support HTTP/3?
Does Huawei Cloud CDN Support Content Encryption Before Distribution?
Does Huawei Cloud CDN Support Intranet Acceleration?
Can CDN Provide All PoP IP Addresses and Origin IP Addresses?
Can I Migrate Domain Configurations in One Account to Another Account?
Is the Principle of Accelerating Delivery of Static and Dynamic Content the Same?
How Do I Stop the CDN Service?
What Is the Maximum Size of a File to Be Uploaded to CDN?
Does CDN Support Frequency Control?
Does CDN Support Real-Time Monitoring?
Does CDN Support Access Through Fixed IP Addresses?
Usage
How Do I Enable CDN?
How Do I Control and Assign CDN Permissions by Project?
How Do I Grant Some CDN Permissions to IAM Users?
Is the CDN Service Area Related to the Origin Server Location and ICP Filing?
Will User Access from Other Regions Be Accelerated If I Select Chinese Mainland or Outside the Chinese Mainland as My Service Area?
Does CDN Support Acceleration by Region?
What Is the Conversion Rule for Traffic and Bandwidth?
Does CDN Accelerate Access to the Origin Server of a Website, or Accelerate Access to the Domain Name?
Can Wildcards Be Used as Part of an Acceleration Domain Name?
What Are the Differences in CDN Acceleration Among the Three Service Areas?
Can I Use the CDN SDKs?
How Do I Select the Service Area If the Server Is Outside the Chinese Mainland but My Web Visitors Are in the Chinese Mainland?
Is CDN Necessary If My Services Are Deployed Within a City?
How Does CDN Determine the Region to Which a User Belongs?
How Do I Direct Traffic from a Third-Party Platform to CDN?
Can an Acceleration Domain Name Be Configured with Multiple Origin Servers?
Can File Upload Be Accelerated?
Can Users in the Chinese Mainland Access Origin Servers and Users Outside the Chinese Mainland Access CDN?
Can I Use CDN If the Origin Port Is Not 80?
Can I Use Global Acceleration If My Origin Server Is in the Chinese Mainland?
How Do I Configure an Origin Server When It Is a Non-Huawei Cloud Object Storage Bucket?
Does CDN Accelerate User Access from a Specified Line?
What If the ICP License of My Acceleration Domain Name Expires?
What Are the Differences Between an Acceleration Domain Name and an Origin Domain?
Do Acceleration Domain Name and Origin Domain Both Need to Be Licensed by China's MIIT?
Can CDN Provide Acceleration for a Domain Name That Houses Different Types of Services (Website, VOD, and File Download)?
Why Is the Error Message Indicating Failed to Obtain the Domain ID Displayed When an IAM User Calls an API After the Enterprise Project Function Is Enabled?
Can CDN Share an Acceleration Domain Name with Live?
Purchase and Billing
What Will I Billed For?
Will I Be Billed If My Domain Name Is Under Attack?
Issues Related to CDN Traffic Packages
Can I View the Billing Information of a Single Domain Name?
Does CDN Charge for HTTP/HTTPS Requests?
What Traffic Is Consumed When CDN Requests Resources from OBS?
How Do I Set an Alert for the Remaining Traffic in a Traffic Package?
How Do I Check the Bills of 95th Percentile Bandwidth?
Why Is the Traffic Usage in a Traffic Package Different from That Shown in Analytics?
Why Is My Account Balance Deducted Even If I Have Purchased a Traffic Package?
Is Billing for On-Demand Service Acceleration the Same as That for File Download Acceleration?
What Is a Retention Period?
If Global Acceleration Is Configured, Are the Traffic and Bandwidth Consumptions in and Outside the Chinese Mainland Billed Separately?
Why Is My CDN Not Working When My Account Is in Arrears?
An OBS Bucket Is Being Used as the Origin Server and an OBS Pull Traffic Package Has Been Purchased. Why Isn't the Origin Pull Traffic Generated by CDN Being Deducted From the OBS Pull Traffic Package?
Domain Name Settings
Does CDN Support the Configuration of Domain Names with Ports?
Can a Subdomain Name Be Used as an Acceleration Domain Name?
Can the CNAME of an Acceleration Domain Name Be Directly Accessed?
Do I Need to Configure a Certificate for the Origin Server After Adding a Security Certificate to CDN?
Can a Rejected Domain Name Be Modified and Added Again to CDN?
Can Multiple Acceleration Domain Names Use the Same Origin Server IP Address?
Can the OBS Bucket's Domain Name Be Used as an Acceleration Domain Name If an OBS Bucket Is Configured as an Origin Server?
What Requirements Should I Meet Before Adding a Domain Name Whose Service Area Is Chinese Mainland?
Can I Limit Access to Domain Names Based on QPS?
Does Huawei Cloud CDN Accelerate Delivery of Content Redirected from VPN?
Does My Domain Name Have to Be Resolved on Huawei Cloud?
Can an Acceleration Domain Name Be Used in and Outside the Chinese Mainland?
Why Do My Domain Requests Still Go to CDN PoPs After My Domain Name Has Been Disabled and Domain Resolution Has Been Changed?
How Do I Configure a Certificate for a Wildcard Domain?
Why Am I Seeing the "Incomplete certificate chain" Message?
Why Am I Seeing a Message Indicating that the Certificate Format Is Incorrect?
Are Self-Signed HTTPS Certificates Supported?
After Force HTTPS Is Enabled, Why Are Parameters Missing in a POST Request When I Call an API Using HTTP?
Can Users Use HTTP to Visit My Domain Name After HTTPS Is Configured?
What Should I Do If the ICP License of an Acceleration Domain Name Expires?
Cache Settings
Will the Cache on CDN PoPs Be Updated in Real Time?
Does Huawei Cloud CDN Support Regular Expressions for Cache Policy Setting?
Does CDN Support Batch Configuration of Cache Policies for Acceleration Domain Names?
Does CDN Cache Status Codes 404 and 403?
What Are the Default Cache Rules? Can I Modify the Cache TTL?
Why Is the Cache Hit Ratio of a Domain Name with Whole Site Acceleration Greater Than 0?
Does the Path in Cache Settings Refer to a Web Address or File Path on the Server?
Why Is the CDN Cache Hit Ratio Low?
Why Am I Able to Access and Download a File After It Is Deleted from an OBS Bucket?
How Do I Cache the Homepage (Root Directory)?
How Do I Check Whether a Cache Is Hit?
Why Is the Latest Content Inaccessible Even When the Cache TTL Is Set to 0?
Does Huawei Cloud CDN Support Caching octet-stream Stream Files?
Why Are Certain Files Not Downloadable Even Though They Have Not Expired (365 Days)?
How Do I Configure Cache for Resources That Do Not Need to Be Cached?
Can I Specify a Directory and Filename Extension for Caching?
When Hotlinking Happens, Will the Previous Cache Still Exist After I Change the Domain Name?
All Resources Are Preheated, and the Cache TTL Is One Year. Why Is the Requested Content Still Being Pulled from the Origin Server?
How Do I Synchronize Content Cached on CDN PoPs with That on the Origin Server?
Why Does a Cache Rule Not Take Effect?
Troubleshooting
Why Am I Seeing a Message Indicating that the Domain Name Already Exists When I Add a Domain Name for CDN Acceleration?
Why Is My Domain Name Inaccessible After HTTPS Secure Acceleration Is Configured?
Why Is Data Obtained from a CDN PoP Not the Updated Data?
Why Is 304 Returned When a User Accesses a Resource Under My Acceleration Domain Name?
Why Does Agency Creation for OBS Fail When an OBS Private Bucket Is Used as the Origin Server?
Why Can't a Web Page Be Properly Displayed After the Origin Server's IP Address Is Changed?
Why Do I Get an Access Failure and Access-Control-Allow-Origin Error?
Why Does Baidu Spider Fail to Capture Data?
Why Are All Files in the Bucket Displayed When Users Request a File from an OBS Bucket Connected to CDN?
Why Does a Video Freeze After CDN Is Configured?
Why Is My CDN Disabled?
Why Does the System Always Display "301" After HTTPS Is Configured for a Domain Name?
Why Do I Get Request Timed Out When Trying to Ping an Acceleration Domain Name?
Why Are Incorrect Resources Being Pulled from My Origin Server?
Why Is My Site Slow the First Time I Access It After CDN Is Configured?
Why Is My Acceleration Domain Name Inaccessible Outside the Chinese Mainland?
Why Is a File in an OBS Bucket with CDN Acceleration Enabled Automatically Downloaded When I Access the File?
What Should I Do If a Domain Name Fails to Be Added?
Why Are CDN PoPs Offline During O&M?
Cache Purge and Prefetch
What Are the Differences Between Cache Purge and Cache Prefetch?
Why Am I Seeing Insufficient Permission for Cache Purge and Prefetch?
Why Does a Cache Prefetch Operation Fail?
Does Cache Purge Refresh Content Cached on All PoPs?
Should I Enter an Origin URL or Domain Name URL for Cache Purge and Prefetch?
Why Does a Prefetch Task Remain in the Being Processed Status for a Long Time?
How Do I Purge the CDN Cache Where the Domain Name Includes a Wildcard?
Why Do Users Still Access the Stale Resource After It Has Been Updated on the Origin Server and Its Cache on CDN Has Been Purged?
Does CDN Support Directory Prefetch?
Are Cache Purge and Prefetch Mandatory?
Do I Need to Purge or Prefetch the Cache of Both HTTP and HTTPS URLs?
If CDN Is Enabled in and Outside the Chinese Mainland, Does It Need to Be Differentiated When Cache Purge and Prefetch?
Can I Prefetch M3U8 Files?
Can the Cache Be Automatically Updated After a Static File on the Origin Server Is Updated?
Which Should I Do First, Purge or Prefetch, When I Want to Update Cache?
Security
What Security Capabilities (Anti-DDoS/CC Attack Defense/Anti-hotlinking) Does CDN Provide?
Does CDN Support IP Address Filtering?
How Does CDN Respond to CC Attacks?
Does CDN Prevent Content Hijacking?
Does CDN Have Anti-DDoS Capabilities?
Can CDN, WAF, and AAD Be Used Simultaneously?
Can Certificates Be Updated Without Service Interruption?
If a Referer ACL Have Been Configured for an OBS Bucket, Will the Settings Take Effect on the CDN Side?
Does CDN Detect Viruses in an Acceleration File?
Can Multiple Certificates Be Configured for a Domain Name?
Will the Traffic Pass Through WAF If Both CDN and WAF Are Configured?
How Do I Check If CDN Is Being Maliciously Used?
Statistics and Logs
What Could Fall Into the "Other" Category in the Visitor Region Statistics?
How Long Is the API Delay of the Top 100 URLs?
What Are the Meanings of HEAD, HIT, and MISS in CDN Logs?
What Does User-Agent OkHttp in CDN Logs Mean?
How Many Days of Data Can Be Queried?
Why Am I Seeing the Message "Fine-grained Authentication Failed" When I Call an API to Download CDN Logs?
Why Is There No Data in Analytics?
Origin Pull
In What Scenarios Does CDN Pull Content from an Origin Server?
What Do I Fix Origin Pull Failures?
Can CDN Pull Content from Third-Party Private Buckets?
How Do I Check Whether Range Requests Are Supported for Origin Pull?
If a Domain Name Is Attacked, Will Access Requests Be Directed to the Origin Server?
What Are the Benefits of a Standby Origin Server?
Does CDN Support Direct Origin Pull Through Crawler Access?
What Is the Difference Between a Host and an Origin Server?
How Does Origin Pull Work If Origin Servers Have Multiple IP Addresses?
Why Are Incorrect Resources Being Pulled?
How Do I View Origin Pull Records?
Will CDN Download All Files If I Send a Status Code 206 to Request 100-Byte Content?
Quota
What Is Quota?
How Do I View My Quota?
Troubleshooting
Overview
Why Can't I Access a Web Page or Play a Video After I Enable CDN?
Why Is It Still Slow to Access a Domain Name That Has Been Added for CDN Acceleration?
Why Is the Displayed or Downloaded Content Incorrect After CDN Acceleration Is Used?
Why Is a 4XX Status Code Returned When I Request Resources from My Acceleration Domain Name?
Why Is a 5XX Status Code Returned When I Request Resources from My Acceleration Domain Name?
Why Does a 301/302 Redirect Loop Occur When I Request Resources from My Acceleration Domain Name?
Status Code and Handling Suggestions
Why Am I Getting a Permission Error Message?
Why Can't I Log In to My Domain Name or Why Is the Information of Other Users Displayed?
How Do I Check Whether an Access Fault Is Caused by a CDN PoP or Origin Server?
Why Is the Cache of a Resource Inconsistent on Different PoPs?
Why Does the Configured Cache Rule Not Take Effect?
What Do I Do If the Browser Displays a Message Indicating that a Cross-domain Exception Occurs After CDN Is Enabled?
Change History
WSA User Guide
What Is Huawei Cloud WSA?
Relationship Between WSA and CDN
Billing
Videos
Glossary
General Reference
Glossary
Service Level Agreement
White Papers
Endpoints
Permissions