Since the Internet is dynamic and ever changing, search engine rankings can change frequently. This can be challenging for web masters who may rank high for an important keyword phrase one day and drop in rank a few days later. The following factors can affect your search ranking: New content, web sites, and web pages discovered by the search engines may jump ahead of existing ones in rankings Older content, sites, and pages may be taken offline (removed from the web) or may decrease in relevancy Older sites may have upgraded SEO to make the content more relevant and attractive to searchers, which may increase these page rankings Search engines can change how they analyze online content, which can result in rank changes Although these changes can be frustrating to a web site owner or business, they can work to your advantage if you stay up to speed on search engine expectations. Working with a professional SEO agency can serve as a huge benefit if this task is too much to manage.