A new URL is retrieved from the New URL database 200 and is parsed into the domain name and directory path portions. If. It is a new domain 205 then its, Web IP address (i.e, www.domain.name) is retrieved using the Internet Domain Name Service 122. The. Unix NSLOOKUP (1) utility 210 returns an IP address given a domain name. The corresponding IP address is stored in the ISP. Database 114. A reverse lookup 210 of the Web IP address is also performed to determine 215 if the given URL is hosted on. A true (or virtual) Web server 220 or a shared Web server 225. A domain name with its own unique Web IP address indicates. A true or virtual Web server (non-ISP host). Multiple domain names for a single Web IP address indicates a shared Web server. (ISP host).
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