Lofesa commented on issue #1667: pagespeed proxy https request ？ URL: https://github.com/apache/incubator-pagespeed-ngx/issues/1667#issuecomment-546590547 Well.... you have a domain name, related to a public IP. The origin server can use another public IP, is not forbiden , but it can be discovered by users and bots then you have a public IP/domain and a public IP that serves the same content => google and other search engines consider that as a duplicate conten, it can be mitigated by the canonical tag, but is better to avoid it. When you use a proxy cache is because you thing the proxy cache response to the final user is more fast than the origin server. Origin server is slow that the proxy cache cause need to "construct" the response vs. the response from the proxy cache is a "constructed" page. Making the origin server accesible by user maibe you loss these aadvantage cause the origin server then need to serve content to the proxy cache and user that discover it.
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