There are viewers that found your website in some ways it can be a direct link or refer from other website. Most viewers are also coming from Search Engines which they search on a certain keyword and the results came out and one of them maybe your website. Search Engine is very useful tool for researchers and can be a good thing for you if your website is what they are looking for. To look deeper search engine has web crawlers.

There are millions of websites around the World Wide Web simple known as the internet. Those millions of websites in the internet are being filtered and then selected by the search engine like the popular ones; Google, Yahoo and Bing. These search engines have their web crawlers, spiders or web robots (web bots). Web spiders have their mathematical formula which they called algorithm. Search engine don’t have the same algorithm, their bots move in different ways to make their individual results. That’s the reason why when we search in Google, Yahoo and Bing don’t give the same results. Their web spiders classify and filter the results which they give to the searchers as an output. The common role of web spiders is to find pages that are linking to your site, it’s like a real spider detects on its web if it catches an insect.

Search engine bots can find your website even if you do nothing. But usually we make our move to make it easy for the web crawler detects the website. When the spider has detected your website it study the information with its meta’s and scan the content. Eventually it will be indexed it in the search engine and crawl for other information like websites linking to you or your website linking to them, filtering those pages related to each other and then gives a proper ranking in the search engine. The spider will go back to your website to check any changes in your websites.

A search engine spider goes by and by to make their measurements which they give the searchers a good results and rankings.