You’ve probably seen them on the web and you’ve probably received many spam email messages from search engine submissions: services that promise you to submit your web site to thousands of search engines and that tell you that your web site will get high search engine rankings if you just submit your web site often enough.
The frequency of your search engine submission is not important.
When you submit your web site URL to a search engines, you basically ask the search engine spiders to visit your web site and to evaluate it. If the search engine spiders cannot find anything useful on your site, they won’t list your web site.