I am using the latest W3 Cache in combination with WordPress SEO (Yoast) on a wordpress multi-site setup.
Now my problem is that cache-preload does not seem to be working.
I tested it by clearing the W3 Cache, logging out of the panel and calling the home-url of one multi-site.
As the sitemap-url I have entered a relative url "sitemap_index.xml". I also tried "/sitemap_index.xml" with no success.
The problem seems to be this relative url.
Does anyone know what url to enter in a multisite setup?