IIS Settings
Rate Limiting
In the IIS Manager Connections pane, select the server name to add dynamic IP restrictions for the server, or expand Sites and then select a site to add dynamic IP restrictions for the site.
In the Home pane, double-click the IP Address and Domain Restrictions feature.
In the Actions pane, click Edit Dynamic Restriction Settings....
In the Dynamic IP Restriction Settings dialog box, specify whether to deny an IP address based on the number of concurrent samples and/or the request rate, specify whether to enable logging-only mode, and then click OK.
https://learn.microsoft.com/en-us/iis/configuration/system.webserver/security/dynamicipsecurity/
Site Binding Require Host Name
In the Connections pane, expand the server name, expand Sites, and then click the Web site on which you want to configure the bindings.
In the Actions pane, click Bindings...
In the Site Bindings dialog box, click Add...
In the Add Site Binding dialog box, add the binding information, and then click OK.
