cdn
- FAQs
- Functions and Usage
- Functions
- What Is CDN?
- What Is Whole Site Acceleration?
- What Service Types Does CDN Support?
- Where Do the CDN Nodes Locate?
- Does CDN Support DNS, HttpDNS, and IP302 Scheduling?
- Which Protocols Does CDN Support?
- Does VOD Acceleration Support HLS and RTMP?
- Can CDN Identify Whether a User Is on a Desktop or Mobile Device?
- Does CDN Support Directory Refresh?
- Does HUAWEI CLOUD CDN Support IPv6?
- Does CDN Support Acceleration for Dynamic Content?
- Does CDN Support Acceleration for a Single Web Page?
- Does HUAWEI CLOUD CDN Support Binary File Acceleration?
- Does HUAWEI CLOUD CDN Support Level-2 Domain Name Acceleration?
- Does CDN Support Whole Site Acceleration?
- Does CDN Accelerate POST Requests?
- Does CDN Have a Speed Limit?
- Does CDN Accelerate Local Access to Shopping Websites?
- Does CDN Support Third-Party Origin Servers?
- What Origin Types Does CDN Support?
- Can I Set a Maximum Traffic or Bandwidth Limit?
- What Is the Bandwidth Reservation of HUAWEI CLOUD CDN?
- How Many Nodes Does HUAWEI CLOUD CDN Have?
- Does CDN Support Cross-Origin Resource Sharing?
- Does CDN Support Custom Error Pages?
- Does CDN Accelerate Domain Names That Contain Chinese Characters?
- Does CDN Support HTTP/3?
- Does CDN Support Content Encryption Before Distribution?
- Does CDN Support Intranet Acceleration?
- What SSL Versions Does CDN Support?
- Can CDN Provide All Node IP Addresses and Origin IP Addresses?
- Can I Migrate Domain Configurations in One Account to Another Account?
- Is the Principle of Accelerating Static and Dynamic Websites the Same?
- How Do I Stop the CDN Service?
- Usage
- How Do I Enable CDN?
- How Do I Add a Domain Name to CDN for Acceleration?
- How Do I Control and Assign CDN Permissions by Project?
- How Do I Grant CDN Permissions to IAM Users?
- How Do I Obtain the IP Address of an End User?
- 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 Global (Chinese Mainland Not Included) as My Service Area?
- 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 Accelerated Domain Name?
- Which Node Is Used for Acceleration If an IP Address Outside the Chinese Mainland Accesses an Accelerated Domain Name?
- 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?
- Do I Need to Register My Domain Name with HUAWEI CLOUD Before Using CDN?
- Can an Accelerated 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 the Origin Server If a Non-Huawei Object Storage Bucket Serves as an Origin Server?
- Can an Origin Domain Name Be the Same as an Accelerated Domain Name?
- Does CDN Accelerate User Access from a Specified Line?
- What If the ICP License of My Accelerated Domain Name Expires?
- What Are the Differences Between an Accelerated Domain Name and an Origin Domain?
- Do Accelerated 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)?
- Functions
- Purchase and Billing
- What Will I Billed For?
- Will I Be Billed If My Domain Name Is Under Attack?
- How Am I Billed If My Traffic Package Is Used Up?
- Do I Have to Consider the Service Area and Origin Location When Buying a Traffic Package?
- Do CDN Traffic Packages Expire?
- Is Traffic for HTTP and HTTPS Requests Deducted from the Same Traffic Package?
- Can I Unsubscribe from a CDN Traffic Package?
- How Long Is the Validity Period of a CDN Traffic Package? Can I Renew the Package?
- Can a CDN Traffic Package Be Associated with a Specific Domain Name?
- Can I View the Billing Information of a Single Domain Name?
- Can CDN and OBS Share a Traffic Package?
- Does CDN Charge for HTTP/HTTPS Requests?
- How Are Whole Site Acceleration Requests Counted?
- What Traffic Does CDN Use to Pull Resources from OBS?
- How Do I Purchase a CDN Traffic Package?
- How Do I Renew an Existing Traffic Package?
- How Do I Set an Alert for the Remaining Traffic in a Traffic Package?
- How Do I Set a Balance Alert Threshold?
- How Do I Change the CDN Billing Option?
- Why Is the Consumed Traffic Not Deducted from My Purchased Traffic Package?
- Can an International Traffic Package Be Used for the Chinese Mainland?
- When Does a CDN Traffic Package Take Effect?
- Do I Need to Consider the Area When Buying a Chinese Mainland Traffic Package?
- Can Multiple Accelerated Domain Names Share the Same Traffic Package?
- Why Is the Traffic Usage in a Traffic Package Different from That Shown in Statistical Analysis?
- Why Is My Account In Arrears Even Though the Traffic Package Is Not Used Up?
- If I Purchase Only an International Traffic Package, How Will I Be Billed for Traffic Generated on the Chinese Mainland?
- How Is Whole Site Acceleration Billed?
- When OBS Is Used as an Origin Server, How Is the Traffic Consumed by CDN Retrieving Content from the OBS Bucket Billed?
- Is Billing for VOD 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?
- Domain Name Settings
- Does CDN Support the Configuration of Domain Names with Ports?
- Does CDN Support Gzip Compression?
- Can a Subdomain Name Be Used as an Accelerated Domain Name?
- Can the CNAME of an Accelerated Domain Name Be Directly Accessed?
- Do I Need to Configure a Certificate for the Origin Server After Adding a Security Certificate to CDN?
- What HTTPS Versions Does CDN Support?
- Can a Rejected Domain Name Be Modified and Added Again to CDN?
- How Do I Check Whether CDN Has Taken Effect?
- How Do I Configure Multiple Domain Names to Point to the Same Website?
- Can Multiple Acceleration Domain Names Use the Same Origin Server IP Address?
- If a Domain Name Is Not Registered on the Chinese Mainland but Its CDN Service Area Is the Chinese Mainland, Is an ICP License Required for It?
- Can a Level-2 Domain Be Accelerated If It Is Resolved Outside the Chinese Mainland and Only Its Level-1 Domain Name Has Been Licensed?
- Can I Use CDN If My Domain Name Is Not Licensed?
- Can the OBS Bucket's Domain Name Be Used as an Accelerated 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 CDN Accelerate Content Redirected from VPN?
- Does My Domain Name Have to Be Resolved on HUAWEI CLOUD?
- Can an Accelerated Domain Name Be Used in and Outside the Chinese Mainland?
- Why Do My Domain Requests Still Go to CDN Nodes 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?
- After Force HTTPS Is Enabled, Why Are Parameters Missing in a POST Request When I Call an API to Request HTTP?
- Can I Use HTTP After HTTPS Is Configured?
- Cache Settings
- Will the Cache on CDN Nodes 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 Accelerated Domain Names?
- Does CDN Cache Status Codes 404 and 403?
- What Are the Default Cache Rules? Can I Modify the Cache Age?
- What Does URL Parameter Filtering Mean in CDN Cache Settings?
- 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 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?
- When Does My Cached Content Expire and How Do I Set the Maximum Cache Age?
- 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 Maximum Cache Age Is One Year. Why Is the Requested Content Still Being Retrieved?
- How Do I Synchronize Content Cached on CDN Nodes with That on the Origin Server?
- 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 the Web Page Still Slow Even After the Domain Name Has Been Added for CDN Acceleration?
- After CDN Acceleration Is Used, the Content on the Web Page, Downloaded File, or Played Video Is Incorrect
- Why Can't I Access My Domain Name and Why Is Other User Information Displayed?
- Why Is My Domain Name Inaccessible After HTTPS Secure Acceleration Is Configured?
- CDN Accelerated URL Inaccessible
- Insufficient Permission for an IAM User When Calling CDN APIs
- Inaccessible Web Page or Video Cannot be Played
- HTTPS Secure Acceleration Task Remains in the Configuring State
- URL Is Successfully Refreshed, But Old Content Is Accessed
- Data Obtained from a CDN Node Is Not the Updated Data
- After CDN Is Enabled, Some Resources Fail to Download, and Browser Displays a Message Indicating that a Cross-domain Exception Occurs
- What Does Each Status Code Mean?
- 403 Error Response Code Is Returned When I Access My Accelerated Domain Name
- When an OBS Private Bucket Is Used as the Origin Server, Agency Creation for OBS Fails
- Origin Server Can Be Accessed, but the Accelerated Page Is Incorrect
- Web Page Cannot Be Properly Displayed After the Origin Server's IP address Is Changed
- Access Fails and the Access-Control-Allow-Origin Error Is Reported
- How Do I Check Whether My Origin Server Is Available?
- 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 the 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 Does the Request Time Out When I Try to Ping an Accelerated Domain Name?
- Why Do Cross-domain Requests Fail After Using CDN Acceleration Even Though the Origin Server Supports Cross-domain Requests?
- Why Are Incorrect Resources Being Retrieved?
- Why Is My Site Slow the First Time I Access It After CDN Is Configured?
- Why Is My Accelerated Domain Name Inaccessible Outside the Chinese Mainland?
- Why Am I Getting a Permission Error Message?
- Cache Refreshing and Preheating
- What Are the Differences Between Cache Refreshing and Cache Preheating?
- Insufficient Permission for Cache Refreshing and Preheating
- Why Does a Cache Preheating Operation Fail?
- Does Cache Refreshing Refresh Content Cached on All Nodes?
- Should I Enter an Origin URL or Domain Name URL for Refreshing and Preheating?
- Why Does a Preheating Task Remain in the Being Processed Status for a Long Time?
- How Do I Refresh the CDN Cache Where the Domain Name Includes a Wildcard?
- Why Is the Content Not Updated Even After I Preheated and Refreshed the Cache?
- Does CDN Support Directory Preheating?
- Are CDN Refreshing and Preheating Mandatory?
- Do I Need to Preheat or Refresh Both HTTP and HTTPS URLs?
- If CDN Is Enabled in and Outside the Chinese Mainland, Does It Need to Be Differentiated When Refreshing and Preheating?
- Can I Preheat M3U8 Files?
- Can the Cache Be Automatically Updated After a Static File on the Origin Server Is Updated?
- How Does CDN Pull Content Since Directory Preheating Is Not Supported?
- Security
- What Security Capabilities Does CDN Provide (Anti-DDoS/CC Attack Defense/Anti-hotlinking)?
- Can I Configure Referer Validation to Prevent Hotlinking?
- 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 Referer Blacklist and Whitelist Have Been Configured for an OBS Bucket, Will the Settings Take Effect on the CDN Side?
- Does CDN Detect Viruses in an Acceleration File?
- Does CDN Support Mutual Authentication Configuration?
- 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 Deploy CDN and WAF Together?
- How Can 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 in CDN Hotspot 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 Am I Seeing the Message "Fine-grained Authentication Failed" When I Call an API to Download CDN Logs?
- Why There Is No Data In Statistical Analysis?
- Retrieval
- In What Scenarios Does CDN Retrieve Content from an Origin Server?
- What Do Retrieval Failures Mean?
- Does CDN Support Retrieval from Third-Party Private Buckets?
- How Do I Check Whether Range-based Retrieval Has Taken Effect?
- 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 HUAWEI CLOUD CDN Support Direct Content Retrieval Through Crawler Access?
- Does CDN Support Selective Retrieval Based on User-Agent?
- What Is the Difference Between a Retrieval Host and an Origin Server?
- How Is Content Retrieved If the Origin Server Has Multiple IP Addresses?
- Why Are Incorrect Resources Being Retrieved?
- How Do I View Content Retrieval Records?
- Will CDN Download All Files If I Send a Status Code 206 to Request 100-Byte Content?
- Quota
- Purchase (Moved to Purchase and Billing)
- Acceleration (Moved to Domain Name Settings)
- Change History
- Functions and Usage
What Service Types Does CDN Support?
Updated at: May 20, 2021 GMT+08:00
- Website acceleration
CDN is perfect for web portals, e-commerce platforms, information apps, and UGC-focused apps. It can accelerate the delivery of images and small HTML, CSS, and JS files.
- File download acceleration
CDN is suitable for websites, game clients, and app stores that provide file download services, and download tools. It is used in scenarios such as downloading game installation packages and application packages, and updating the ROM on mobile phones.
- VOD acceleration
For customers providing on-demand audiovisual services, CDN is a must. On-demand services include online education, video sharing, music or video on demand, and other audiovisual content.
- Whole site acceleration
For websites consisting of both dynamic and static content and have many dynamic resource requests like those for ASP, JSP, and PHP files, CDN is a good option.
For example:
- If both VOD acceleration and file download acceleration are required, only one service type can be selected for an accelerated domain name. If your website has both VOD acceleration and file download acceleration requirements, you need to create two domain names, one for VOD acceleration and the other for file download acceleration.
Parent topic: Functions
