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Differences in the back-to-source host and the origin site

Last Updated: May 16, 2017

Origin site: The origin site determines to which IP address the back-to-source request is sent.

Back-to-source host: The back-to-source host determines to which site of the IP address the back-to-source request is sent.

  • Example 1: The origin site is a domain name.

    The origin site is www.a.com, and the back-to-source host is www.b.com.

    The actual back-to-resource request is sent to the site www.b.com on the host corresponding to the IP address obtained through resolution of www.a.com.

  • Example 2: The origin site is an IP address.

    The origin site is 1.1.1.1, and the back-to-source host is www.b.com.

    The back-to-source request is actually sent to the site www.b.com on the host corresponding to 1.1.1.1.

If the problem persists, contact Alibaba Cloud After-Sales Technical Support.

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