Google Webmaster and Bing Webmaster. You submit a sitemap of all your pages. The search engine then crawls your site, indexes your pages (hopefully), and those pages begin appearing in search results.

You can also submit a page at a time:

https://www.google.com/webmasters/tools/...

http://www.bing.com/toolbox/submit-site-...

You can easily add your website to a search engine with the help of webmaster.

Webmaster is very useful tool which allows us to communicate with google and it represents us that how google use to see our website.

we can add your site different search engine.

sources

http://smartbakhtar.com/software-develop...

through web master