Does Varnish support Pre-loading?

Poul-Henning Kamp phk at
Mon Apr 28 21:32:16 CEST 2008

In message <55977.39071.qm at>, Louis Luo writes:
>I have a question regarding pre-loading. When Varnish gets a
>response from the backend server, does it do any parsing of the
>page? If it does, and if it sees some embedded objects that might
>be requested by user browser, will it do the pre-loading?


The only circumstances where Varnish examines the content for anything,
is if you ask for ESI processing to be performed.

That's not to say that we could not do it in the future, but there
are no plans for it right now.

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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