A search engine “spider” also known as a “crawler” is a program that the search engines like Google use to find what’s out there on the web. The web is a huge , so something needs to move around and see what’s available on it every second of every day, and this is what the spider does.
The spider looking at your information would follows all of your hyperlinks on each page when the page is loaded. Much like a spider would crawl through it’s web and finds all the insects that have got stuck in it, the “spider” on the web crawls around web sites and will eventually come across your information.
When a spider visits your web page, the content on your page gets loaded into a database. After your web page has been retrieved, the search engines would then load your content into their index.
In SEO the spider goes out and finds your pages, then they would break down all of your words on your page and then all of your URLs are then fed back into the SEO program.
The first thing that a spider would look for when it visits your page is look for a file called “robots.txt.” It is a special file that tells the spider what and what not to index and if the spider doesn’t find the page, the page will be thrown out, that’s why you may not get recognized in a search engine.
The only way that spider will see your information is for it to have a robots.txt file. A spider will find your page by following hyperlinks or “found pages.”
Search engine can have a URL submission form in which you want to request that they add your site to their index, this is a good thing to do in most cases. Also if you are submitting your site to a search engine, do not submit it to the sites you find or software you can purchase that will submit your site to hundreds of engines, this does not work.
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