It can be difficult to construct Web page copy that is conducive to the needs of the major search engines as well as website visitors. Consequently, proper content categorization as well as developing pages that are not too long and yet not too short, becomes complicated. Additionally, these issues make it difficult to effectively target key phrases on specific pages as well. The answer may be sub-domain implementation. A sub-domain is a division of a larger domain. For example, "word.company.com" is a sub-domain of the larger domain, "company.com." Sub-domain implementation is a strategy that search engine marketers may use to categorize content on a large website and for specific sections of websites that are key opportunities to boost visibility in search properties. Search engines often treat sub-domain content as separate website addresses. Additionally, directory editors also see sub-domains as separate key sections of websites many times worthy of their own directory listing. Another benefit of sub-domain implementation is that sub-domains also make URLs shorter and easier to remember.