(in this case of router / DNS lookup) The last component / suffix of a router address is the top-level domain e.g. '.com', '.net', '.gov', '.uk', etc.
Content Type: Report page
Technical data >> Domains
Use the Domains report to identify which domains are the most popular for accessing your site. Generally speaking, these are country TLDs (top-level-domains) although the list may also be headed off by...