Content Delivery Network
Content Delivery Network
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What's New
Function Overview
Product Bulletin
Huawei Cloud CDN Will Add a Log Field
Huawei Cloud CDN Will Adjust the Cache Logic of Status Code 400
Service Overview
What Is Huawei Cloud CDN?
How CDN Works
PoP Distribution
Advantages
Application Scenarios
Basic Concepts
Notes and Constraints
Permissions Management
Related Services
Billing
Billing Items
Billing Options
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
Expiration and Overdue Payment
Stopping Billing
High Bill Risk Warning
Billing for Whole Site Acceleration
OBS Billing for CDN Acceleration
Billing FAQ
Getting Started
Domain Name Requirements
Overview
Before You Access CDN
Access Process
Enabling CDN
Enabling WSA
Adding a Domain Name
(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
Creating a User and Granting CDN Permissions
Enabling CDN
Domain Name Management
Overview
Adding a Domain Name
Enabling/Disabling CDN for a Domain Name
Deleting a Domain Name
Domain Name Quota Management
Custom Domain Name Configuration
Overview
OBS Authorization
Basic Settings
Overview
Modifying the Service Type
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
Configuring a Certificate for a Batch of Domain Names
HTTPS Certificate Requirements
HTTPS Certificate Format Conversion
TLS Versions
Force Redirect
HSTS
HTTP/2
OCSP Stapling
QUIC
Cache Settings
Overview
PoP Cache Rules
Browser Cache TTL
Status Code Cache TTL
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
Video Settings
Video Seek
Tag Management
Resource Package Management
Cache Prefetch and Purge
Overview
Cache Prefetch
Cache Purge
Viewing Task Progresses
Analytics
Service Monitoring
Access Requests
Origin Pulls
Hit Ratios
Status Codes
Data Analysis
Operations Reports
Traffic Query
Query
Summary
Whole Site Acceleration
Data Export
Diagnosis
Log Management
IP Address Check
Permissions Management
Creating a Custom Policy
Authorizing and Associating an Enterprise Project
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
Accelerating Access to Websites Built on ECSs
Setting the Cache TTL
Improving the Cache Hit Ratio
Change History
API Reference
Before You Start
Calling APIs
Making an API Request
Authentication
Response
API
Domain Name Operations
Creating a Domain Name
Deleting a Domain Name
Enabling CDN for a Domain Name
Disabling CDN for a Domain Name
Querying Domain Names
Querying a Domain Name
Domain Name Configuration
Modifying the Full Domain Configuration
Querying Domain Name Configuration
Cache Refreshing and Preheating
Creating a Cache Refreshing Task
Creating a Cache Preheating Task
Querying Cache Refreshing and Preheating Tasks
Querying a Cache Refreshing or Preheating Task
Querying Cache Refreshing and Preheating Records
Log Management
Querying Logs
Billing Management
Querying the Billing Option
Configuring the Billing Option
Statistical Analysis
Querying Domain Name Statistics by Region and Carrier
Querying Basic Domain Name Statistics
Permissions Policies and Supported Actions
Introduction
API Permissions
Appendix
Status Codes
Obtaining a Project ID
Obtaining an Account ID
Carriers
Country and Region Description
FAQs
Functions and Usage
Functions
What Service Types Does CDN Support?
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?
What Origin Types Does CDN Support?
Does Huawei Cloud CDN Support HTTP/3?
Does Huawei Cloud CDN Support Content Encryption Before Distribution?
Does Huawei Cloud CDN Support Intranet Acceleration?
Usage
How Do I Grant CDN Permissions to IAM Users?
How Do I Obtain the IP Address of a User?
Does CDN Support Acceleration by Region?
What Is the Conversion Rule for Traffic and Bandwidth?
Does CDN Accelerate the Origin Server of a Website, or Accelerate the Domain Name?
Can Wildcards Be Used as Part of an Acceleration Domain Name?
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 I Use CDN If the Origin Port Is Not 80?
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 Are the Differences Between an Acceleration Domain Name and an Origin Domain?
Can CDN Provide Acceleration for a Domain Name That Houses Different Types of Services (Website, VOD, and File Download)?
Purchase and Billing
What Will I Billed For?
Will I Be Billed If My Domain Name Is Under Attack?
Is Billing for On-Demand Service Acceleration the Same as That for File Download Acceleration?
What Is a Retention Period?
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?
How Do I Check Whether the CNAME Record Has Taken Effect?
Can I Limit Access to Domain Names Based on QPS?
Does Huawei Cloud CDN Accelerate Content Redirected from VPN?
Does My Domain Name Have to Be Resolved on Huawei Cloud?
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 If My Domain Name Is a Wildcard Domain?
Does CDN Support Modification to Acceleration Service Types?
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?
Does CDN Support Force HTTPS?
Can I Use HTTP After HTTPS Is Configured?
Cache Settings
Will the Cache on CDN PoPs Be Updated in Real Time?
Does CDN Cache Status Codes 404 and 403?
What Are the Default Cache Rules? Can I Modify the Cache Age?
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?
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 Maximum Cache Age 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?
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 Is the Accelerated Page Incorrect Even Though I Can Access 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 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?
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 Is the Content Not Updated Even After I Prefetched and Purged the Cache?
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?
Can I Prefetch M3U8 Files?
Which Should I Do First, Purge or Prefetch, When I Want to Update Cache?
Security
What Security Capabilities Does CDN Provide?
Can I Configure Referer Validation to Prevent Hotlinking?
Does CDN Support IP Address Filtering?
How Does CDN Respond to CC Attacks?
Does CDN Have Anti-DDoS Capabilities?
Can Certificates Be Updated Without Service Interruption?
Does CDN Detect Viruses in an Acceleration File?
Can Multiple Certificates Be Configured for a Domain Name?
Statistics and Logs
What Could Fall Into the "Other" Category in the Visitor Region Statistics?
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 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?
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 Configuring 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 Is Origin Pull If the Origin Server Has 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?
Change History
Troubleshooting
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 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?