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Hi,
We have a site configured on IIS 8.5 - example.com (for instance). This site has two bindings. For example, site.example.com and newsite.example.com. We also have HTTPS redirects on this for both bindings.
The issue is that we're trying to determine the usage of the 'old' site (site.example.com) and the new site (newsite.example.com). Howerver, in the IIS log files, the [cs-host] value only ever shows the newsite.example.com host and never the site.example.com (old site). We know people are still accessing the old site, but it's difficult to compare the numbers as we only ever see the new site in the logs. I've accessed the old site myself and cannot see that in the log files.
Is this something that is known? Does the cs-host only report whatever the most recent binding is?
The cs-host field only records what Host header values appear in the requests, so "I've accessed the old site myself and cannot see that in the log files" indicates that you probably hit something more complicated. Maybe you can start with revealing more about "We also have HTTPS redirects on this for both bindings".
Never mind; turns out that the DNS entries actually point to different servers, so the new environment is hosted on a different IIS instance anyway. Even though the bindings for both are on the 'old' site nothing for the new site would be hiiting that box.
Apologies.
As lextm mentioned, I think you need to pay attention to the redirect of your site. I test it in my side, if I create a redirect rule to redirect from "A" domain to "B" domain, the "cs-host" field will not show "B" domain in logs.