Server-side tracking

It appears that when in server-side mode search engines like google aren’t being tracked (users are) when served a cached page. For example, if I clear my cache and fetch as google from webmasters tool I can see googlebot accessing my site. However if I fetch the same page a minute later there is no sign of googlebot even though there is a confirmation that the page was fetched successfully.

I’m not sure if this is an issue with this plugin or something has changed in wp 4.0. Because it used to work.

https://ww.wp.xz.cn/plugins/wp-slimstat/