Why do you need to index your site?
First, the apparent answer. If you favor your website online to show up in the search results at all, then it desires to be indexed. However, you don’t favor your web site to be listed simply once. You desire the search engines to hold re-indexing your site. Search engines like Google don’t simply update automatically. They were counted on spiders — little bits of laptop code that every search engine sends out to “crawl” the internet (hence, “spider”). You choose an efficient, general crawl rate. The spider’s job is to appear for new stuff on the internet and replace the already listed model of your site. That “new stuff” can be a new web page on a current site, an exchange to a current page, or a completely new web site or blog. Once the spider finds a new website online or page, it wants to parent out what that new website or web page is about. Way lower back in the Wild Wild West of the early web, search engine spiders weren’t almost as clever...