- Release Notes and Announcements
- Release Notes
- Security Announcement
- Announcements
- Notice regarding the addition of TrustAsia free certificate issuance source
- [Tencent Cloud EdgeOne] Impact of Root Certificate Changes from Let's Encrypt
- [Tencent Cloud EdgeOne] NS Access Mode Upgrade Announcement
- [Tencent Cloud EdgeOne] VAU Unit Change Notification
- EdgeOne Console Upgrade Instructions
- 【Tencent Cloud EdgeOne】Cloud API Change Notification
- Product Introduction
- Purchase Guide
- Description of 14-day Trial Plan Experience Benefits
- Billing Overview
- Basic Service Fees
- Value-added Service Fees
- Related Tencent Cloud Services
- Extra Package Description (Prepaid)
- Subscriptions
- Renewals
- 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
- Domain Service
- Site Acceleration
- Origin Configuration
- Edge Functions
- Overview
- Getting Started
- Operation Guide
- Runtime APIs
- Sample Functions
- Example Overview
- 301 Redirect
- Obtaining Client URL Information
- Customization Based on Client Geo Location
- Obtaining Client Geo Location Information
- Batch Redirect
- Returning an HTML Page
- Returning a JSON Object
- Fetch Remote Resources
- Authenticating a Request Header
- Modifying a Response Header
- Performing an A/B Test
- Setting Cookies
- Performing Redirect Based on the Request Location
- Using the Cache API
- Caching POST Requests
- Responding in Streaming Mode
- Merging Resources and Responding in Streaming Mode
- Protecting Data from Tampering
- Rewriting a m3u8 File and Configuring Authentication
- Adaptive Image Resize
- Image Adaptive WebP
- Customize Referer restriction rules
- Remote Authentication
- HMAC Digital Signature
- Naming a Downloaded File
- Obtaining Client IP Address
- Practical Tutorial
- Security Protection
- Overview
- DDoS Protection
- DDoS Protection Overview
- Exclusive DDoS Protection Usage
- Configuration of Exclusive DDoS protection Rules
- Web Protection
- Rules Template
- IP Groups
- Origin Protection
- Custom Response Page
- Alarm Notification
- Rule Engine
- L4 Proxy
- Data Analysis&Log Service
- Tool Guide
- Practical Tutorial
- Configuring EdgeOne Security Event Alarms via TCOP
- EdgeOne Resource Abuse Prevention
- EdgeOne Implementation of Session Persistence Based on Client IP Addresses
- EdgeOne Implementation of Origin-Pull Based on Client's Geo Location
- EdgeOne Hotlink Protection Practical Tutorial
- EdgeOne initiates Automatic Warm-up
- EdgeOne Automatic Cache Purge
- Cross-regional Secure Acceleration (Oversea Sites)
- Scheduling Traffic to EdgeOne by Performing Canary Switching
- Quickly Enabling HTTPS Access with EdgeOne Free Certificate
- Through traffic orchestration to multiple service providers
- EdgeOne facilitate APKs.s dynamic packaging of Android
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Site APIs
- Acceleration Domain Management APIs
- Site Acceleration Configuration APIs
- Edge Function APIs
- Alias Domain APIs
- Security Configuration APIs
- 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
- Data Analysis APIs
- Log Service APIs
- Billing APIs
- Certificate APIs
- Load Balancing APIs
- Diagnostic Tool APIs
- Custom Response Page APIs
- Version Management APIs
- Data Types
- Error Codes
- FAQs
- Agreements
- TEO Policy
- Contact Us
- Glossary
- Release Notes and Announcements
- Release Notes
- Security Announcement
- Announcements
- Notice regarding the addition of TrustAsia free certificate issuance source
- [Tencent Cloud EdgeOne] Impact of Root Certificate Changes from Let's Encrypt
- [Tencent Cloud EdgeOne] NS Access Mode Upgrade Announcement
- [Tencent Cloud EdgeOne] VAU Unit Change Notification
- EdgeOne Console Upgrade Instructions
- 【Tencent Cloud EdgeOne】Cloud API Change Notification
- Product Introduction
- Purchase Guide
- Description of 14-day Trial Plan Experience Benefits
- Billing Overview
- Basic Service Fees
- Value-added Service Fees
- Related Tencent Cloud Services
- Extra Package Description (Prepaid)
- Subscriptions
- Renewals
- 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
- Domain Service
- Site Acceleration
- Origin Configuration
- Edge Functions
- Overview
- Getting Started
- Operation Guide
- Runtime APIs
- Sample Functions
- Example Overview
- 301 Redirect
- Obtaining Client URL Information
- Customization Based on Client Geo Location
- Obtaining Client Geo Location Information
- Batch Redirect
- Returning an HTML Page
- Returning a JSON Object
- Fetch Remote Resources
- Authenticating a Request Header
- Modifying a Response Header
- Performing an A/B Test
- Setting Cookies
- Performing Redirect Based on the Request Location
- Using the Cache API
- Caching POST Requests
- Responding in Streaming Mode
- Merging Resources and Responding in Streaming Mode
- Protecting Data from Tampering
- Rewriting a m3u8 File and Configuring Authentication
- Adaptive Image Resize
- Image Adaptive WebP
- Customize Referer restriction rules
- Remote Authentication
- HMAC Digital Signature
- Naming a Downloaded File
- Obtaining Client IP Address
- Practical Tutorial
- Security Protection
- Overview
- DDoS Protection
- DDoS Protection Overview
- Exclusive DDoS Protection Usage
- Configuration of Exclusive DDoS protection Rules
- Web Protection
- Rules Template
- IP Groups
- Origin Protection
- Custom Response Page
- Alarm Notification
- Rule Engine
- L4 Proxy
- Data Analysis&Log Service
- Tool Guide
- Practical Tutorial
- Configuring EdgeOne Security Event Alarms via TCOP
- EdgeOne Resource Abuse Prevention
- EdgeOne Implementation of Session Persistence Based on Client IP Addresses
- EdgeOne Implementation of Origin-Pull Based on Client's Geo Location
- EdgeOne Hotlink Protection Practical Tutorial
- EdgeOne initiates Automatic Warm-up
- EdgeOne Automatic Cache Purge
- Cross-regional Secure Acceleration (Oversea Sites)
- Scheduling Traffic to EdgeOne by Performing Canary Switching
- Quickly Enabling HTTPS Access with EdgeOne Free Certificate
- Through traffic orchestration to multiple service providers
- EdgeOne facilitate APKs.s dynamic packaging of Android
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Site APIs
- Acceleration Domain Management APIs
- Site Acceleration Configuration APIs
- Edge Function APIs
- Alias Domain APIs
- Security Configuration APIs
- 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
- Data Analysis APIs
- Log Service APIs
- Billing APIs
- Certificate APIs
- Load Balancing APIs
- Diagnostic Tool APIs
- Custom Response Page APIs
- Version Management APIs
- Data Types
- Error Codes
- FAQs
- Agreements
- TEO Policy
- Contact Us
- Glossary
EdgeOne responds with the following types of exception status codes:
Standard Status Codes
You can refer to the HTTP Status Code Standard to see the specific meanings of these status codes. These codes are typically responded to in the following situations:
After the request is sent back to the origin, the status code information is responded by the origin server, and the node will pass transmit status code from the origin server to the client.
Direct responses from EdgeOne nodes, for example, Token authentication fails, responding with a 403 status code. Possible status codes that may be directly responded by EdgeOne nodes include the following status ones:
Status Code | Description |
400 | The client's request is deemed invalid because the requested method is not within the allowed range set by EdgeOne. For details, see HTTP Restrictions. |
403 | Fail to pass the link protection verification, such as the Token authentication in the rule engine. |
416 | Range exception, for example, rangeStart < 0,< 0, rangeStart > rangeStart > rangeEnd, or rangeStart > FileSize. |
418 | For each domain name connected to EdgeOne, the system automatically allocates service nodes for the domain. Each corresponding node receives the domain's configuration file, which includes settings such as the origin server, cache, headers, etc. When a request is sent to a node, it reads the domain's configuration file. If the file is not found, the node responds with a 418 status code. For example, if a client sends a request to http://example.com/test.jpg, the node reads the configuration file for the domain example.com. If, due to reasons such as the service node binding to a non-example.com domain name, CNAME configuration errors, or issues with the scheduling system, the configuration file is not found, the client will receive a 418 response. |
423 | Request loopback is triggered, that is, the Loops value in the CDN-Loop header is greater than or equal to 16. For details, see CDN-Loop. |
EdgeOne Custom Status Codes
EdgeOne defines special status codes with unique meanings. Status codes within the range of 499 and 520-599 are reserved by EdgeOne for custom non-standard responses. It is recommended to avoid using status codes within this range in your business to prevent confusion with EdgeOne's status codes.
Below are the custom EdgeOne status codes along with their meanings, facilitating self-troubleshooting when encountering abnormal business access.
Status Code | Meaning Explanation |
499 | The client's request reaches the node, and if the client disconnects before receiving a response from the node, such as closing the request page, the log and monitoring will record it as status code 499. |
520/550 | After the node successfully establishes a connection with the origin server and sends a request, if the origin server directly sends a RST packet, the node responds to the client with a 520 status code. |
521/551 | When the node requests the origin server, during the TCP connection establishment phase, if the origin server directly sends a RST packet, the node responds to the client with a 521 status code. |
522/552 | When the node requests the origin server, during the TCP connection establishment phase, if the origin server does not respond, causing the node to time out, the node responds to the client with a 522 status code. |
523/553 | If the domain is configured with a domain name as the origin server, when the node goes to the origin, it needs to resolve the domain to obtain the origin server's IP. If the resolution fails, the node cannot go to the origin, and it responds to the client with a 523 status code. |
524/554 | After successfully establishing a connection with the origin server, if the node initiates a request to the origin server and there is no response from the origin server, causing a timeout at the node, the node responds to the client with a 524 status code. |
525/555 | If the origin protocol is HTTPS, the node needs to perform an SSL handshake with the origin server when going back to the source. If the handshake fails, the node responds to the client with a 525 status code. |
566 | When a request is intercepted by Web Protection - Managed Rules, the default response is a 566 status code along with the default interception page. If the user has configured a custom interception status code, the configured status code will be used. |
567 | When a request is intercepted by Web Protection - Custom Rules, Web Protection - Rate Limiting or Bot Management rules, the default response is a 567 status code along with the default interception page. If the user has configured a custom interception status code, the configured status code will be used. |
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