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CDN Back-to-src Log

最終更新日：2026-01-27 11:03:26

This article introduces the native platform data regarding CDN back-to-origin logs and provides descriptions of each field.

Basic

No. Field Name Field Code Data Type Field Description
1 Back-to-Origin Log Timestamp (ms) origin_log_timestamp_ms LONG The millisecond-level timestamp when this back-to-origin log was generated.
2 Back-to-Origin Request ID origin_request_id STRING A unique ID for the back-to-origin request. Used to identify back-to-origin requests; globally unique across the platform.
3 Acceleration Domain hostname String The hostname, as configured on the acceleration platform, that serves this request. If the acceleration domain is a wildcard domain, the log record starts with a ‘.’ character.
4 Back-to-Origin Exception Code origin_exception_code string Records the exception information that occurred during the back-to-origin request process.
5 Back-to-Origin System Exception Code origin_system_exception_code string Records the system-level exception information that occurred during the back-to-origin request process.

OriginRequest

No. Field Name Field Code Data Type Field Description
1 Origin IP origin_ip String The IP address of the origin server in the back-to-origin request.
2 Origin Domain origin_domain String The domain of the origin server in the back-to-origin request.
3 Origin Port origin_port INT The port of the origin server in the back-to-origin request.
4 Host Header to Origin origin_request_host_header String The value of the Host header in the back-to-origin request.
5 Origin Request URL origin_request_url string The complete request URL used in the back-to-origin request. If the accelerated node does not rewrite the original request URL, the origin request URL and the client request URL are the same.
6 Back-to-Origin Request URI origin_request_uri string The URI path of the back-to-origin request, excluding query parameters. Starts with ‘/’.
7 Back-to-Origin Request Line origin_request_line string The request line information for the back-to-origin request. Includes the request method, URI, and query parameters.
8 Back-to-Origin Request Method origin_request_method string The request method used for the back-to-origin request, such as: GET, POST, PUT, DELETE, PATCH, HEAD, OPTION, etc.
9 Back-to-Origin Request Protocol Type origin_request_scheme string The scheme protocol type of the back-to-origin request, including: http, https.
10 Back-to-Origin Request SSL Protocol Version origin_request_ssl_protocol string The SSL protocol version used for the back-to-origin request. Includes: SSLv3, TLSv1, TLSv1.1, TLSv1.2, TLSv1.3.
11 Back-to-Origin Request Header Range origin_request_range string The value of the ‘Range’ request header in the back-to-origin request, indicating the byte range for a back-to-origin segment request. This value is only provided when Range segmented back-to-origin is enabled.
12 Back-to-Origin SSL Reuse Flag origin_ssl_reuse INT The flag indicating SSL/TLS connection reuse for the back-to-origin request. ‘1’ indicates reuse, and ‘0’ indicates no reuse.
13 Back-to-Origin SSL Handshake Duration (ms) origin_ssl_handshake_duration_ms LONG The duration of the SSL/TLS handshake for the back-to-origin request. Unit: milliseconds.
14 Back-to-Origin DNS Resolution Duration (ms) origin_dns_response_duration_ms LONG The DNS resolution time for the back-to-origin request from the edge node server. Unit: milliseconds.
15 Origin Connection Duration (ms) origin_connect_duration_ms LONG The time taken for the edge node server to establish a connection with the origin server. For HTTPS requests, this includes the SSL/TLS handshake time. Unit: milliseconds.
16 Origin Request Size origin_request_bytes LONG The total back-to-origin request traffic size, including request line, headers, and body. Unit: Bytes.
17 Origin Request Header Size origin_request_header_bytes LONG The back-to-origin request header traffic size, including request line and headers, excluding the request body. Unit: Bytes.
18 Origin Request Body Size origin_request_body_bytes LONG The back-to-origin request body traffic size, excluding the request line and request headers. Unit: Bytes.
19 Origin Request TCP Size origin_request_tcp_bytes LONG The TCP traffic size for the back-to-origin request. Unit: Bytes.

OriginResponse

No. Field Name Field Code Data Type Field Description
1 Origin Request Round-trip Time (ms) origin_turnaround_time_ms LONG The time consumed by the acceleration node server from sending a back-to-origin request to receiving the first byte of the origin server’s response. Unit: milliseconds.
2 Origin Response Processing Time (ms) origin_response_duration_ms LONG The time taken by the edge node server to receive the response from the origin, including response headers and body. Unit: milliseconds.
3 Origin Response Size origin_response_bytes LONG The total size of the response traffic (including response header and body) received by the edge node server from the origin. Unit: bytes.
4 Origin Response Header Size origin_response_header_bytes LONG The size of the response header traffic received by the edge node server from the origin. Unit: bytes.
5 Origin Response Body Size origin_response_body_bytes LONG The size of the response body traffic received by the edge node server from the origin. Unit: bytes.
6 Origin Response TCP Size origin_response_tcp_bytes LONG The size of the TCP traffic received by the edge node server from the origin. Unit: bytes.
7 Origin Response Status Code origin_response_status_code INT The HTTP status code sent by the origin server to the edge node. For example: 200, 302, 403, 500, etc.
8 Origin Response Header Content-Length origin_response_content_length LONG The value of the Content-Length response header sent by the origin server to the edge node. Only the value from the last upstream server response is saved.
9 Origin Response Header Content-Encoding origin_response_content_encoding STRING The value of the Content-Encoding response header sent by the origin server to the edge node. Only the value from the last upstream server response is saved.
10 Origin Response Header Content-Type origin_response_content_type STRING The value of the Content-Type response header sent by the origin server to the edge node. Only the value from the last upstream server response is saved.
11 Origin Response Header Location origin_response_location STRING The value of the Location response header sent by the origin server to the edge node. Only the value from the last upstream server response is saved.

Client

Index Field Name Field Code Data Type Field Description
1 Real Client IP client_real_ip string The real client IP address. The value is taken from the Cdn-Src-Ip header if present; otherwise, the remote-ip is used.
2 Client Request URL client_request_url string The complete original URL of the client request.

EdgeServer

Number Field Name Field Code Data Type Field Description
1 Origin-fetching Node IP origin_connect_ip string IP address of the acceleration node that establishes a connection with the origin.

Note:

  • The availability of log fields may vary depending on the actual configuration. It is recommended to select fields based on your specific business requirements.
  • Currently, logs related to live streaming services are not included.

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