Hi,
I am now using W3 Total Cache with my blog (http://www.alexyang.me). Below is the setting.
Host: VPS (total control over all settings)
Version: wordpress 3.8, w3 total cache 0.9.3
SSL: Enabled but not mandatory
Page Cache: Disk Enhanced
Cache Preload: On, 100 seconds/10 pages
Cache pages: front page, feeds, SSL requests, 404.
For my site, because I use relative links, there is NO difference for SSL and non-SSL pages in terms of content. I notice that when I visit non-SSL page, a page cache named _index.html is created. And if I visit SSL page, a _index_ssl.html is created.
This is ok because I can direct SSL and non-SSL requests to the corresponding cache. However, the Cache Preload only creates SSL version of page cache for me. (that is _index_ssl.html). Therefore, if a visitor visit non-SSL page for the first time, there will be a cache miss.
1. Is there any way to also create page cache for non-SSL pages by Cache Preload, or is it possible to only maintain and use one version (_index.html) for both protocols?
2. I also notice that after sometime, the file name is changed to _index.html.old. What is the expire time (TTL) for a page cache, and where can I configure it? (I am NOT talking about browser cache)
Thank you very much.