Internet search A primer
Be cautious when doing search engine optimization as it can be tricky at times. This is because search engines crawl the web using different methods to index the pages. In some cases pages may get ignored or removed from indexes if they violate certain guidelines. Some companies have a record of trying to use tactics to help a website get to the top of the search engine in unfair ways. Sometimes this happens in the form of a company presenting the search engine with content that the browser would not normally see.