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Home-->Chinese search engine-->Search Engines vs. Directories

Search Engines vs. Directories

A Search Engine - is a database that has been built by "spiders" or "robots"or "crawlers".These cyber spiders crawl the Internet and then return the information to a database where it is stored. Theoretically, the web site should show up in the search results the next time the engine updates. The delay can be from a few days to months.

Search engine spiders can crawl hundreds of thousands of pages a day. And they will also follow the links on a page to continue their crawl further. Thus, it is possible for your page to be indexed by a spider even if you have not submitted the page to the search engine.

A Directory - is also a database of web sites. However, directories (such as Yahoo) don't rely on spiders. Instead, human editors review and categorize the web sites that have been submitted for inclusion, and decide if the listing will be accepted. In contrast to search engines, which may list every page on a site, most frequently a directory will only list one page. Additionally, once a site is listed in a directory, getting a human editor to change your listing or move you to another category can be almost impossible.

PPC - Pay- per - Click search engine. You bid to be shown in the results if search engines and you pay when some clicks your website.

You will find that most of time, we are referring to both search engines and directories as "search engines" when we talking about Chinese search engines, that's because to most of the people they both provide the same service.