Introduction

You can configure the domain name of the web server to be accessed during the origin fetch process.

  • The origin host configuration is optional. The default value is as follows:
    • If the origin site is an IP address, the origin host is the DCDN domain name by default.
    • If the origin site is an OSS domain name, the origin host is the origin site domain name by default.
  • The options are: DCDN domain names, origin domain names, and custom domain names.
    Note SNI origin fetch is not currently supported.

Procedure

  1. On the Domain Names page, select a domain name, and click Configure.
  2. Go to Origin Fetch > Origin Host, and click Modify.
  3. Select the type of domain name to speed up, and click OK.

Difference between the origin site and the origin host

  • Origin site: The origin site determines the specific IP address that is requested for origin fetch.

  • Origin host: The origin host determines the specific website that is at the IP address accessed by the origin fetch request.

Case Case 1 Case 2
Origin site www.a.com 1.1.1.1
Origin host www.b.com www.b.com
In actual origin fetch, the request is forwarded to Website www.b.com on the host corresponding to www.a.com Website www.b.com on the host that is corresponding to 1.1.1.1