A Little Confused

@nootkan Thanks for contacting me.
The “auto preconnect” feature will automatically determine what the appropriate preconnect hints are that should be implemented. It does this by determining what resources are loaded from external domains, and captures those domain names which are turned into preconnect hints.
Preconnect and DNS prefetch resource hints only need the domain name, and not the full URL path to work properly. Prefetch, prerender, and preload use full URL’s. I recommend reading over the “Resource hint information” tab for some background information on how each resource hint works.
Hope that answers your question, and I hope you find the plugin useful!

Thanks for your replies. I did read over the information in the plugin backend but it is still unclear to me because when I use the auto method or the url method with any of the hint types I am still seeing the warning to fix inside GTMetrix, Googles’ page speed scripts.

@nootkan Which warnings are you seeing? I do plan on releasing an update shortly to better explain how the auto preconnect hints work.