So to simplify life these search engines were developed. Search engines have an entire list of web pages and the information on these web pages and their content.
It is not that the moment you have your website, it will be listed (Indexed) in the search engines. To have your website listed the search engines need to know that your website exists. There are two types of search engines
Crawler based Search Engines
These type of search engines use a bot or spider. What a spider does is crawl through your website to list the various pages and index the same on the search engine. Google is one such crawler based search engine
Human powered Directories
These types of search engines where you submit your website to the directory and the same listed on the search engine. These types of search engines would only list the websites that is being submitted to them. Open directory is one such type of search engine.
There is also these hybrid search engines which use both the crawlers and the directories to index pages. We will see more about various search engines and submitting to them in the posts to come