Search engine ‘spiders’ are robots that seek out webpages to display in search engines. Below we’ll discuss how they work and why they’re important.

Robots actually have the same basic functionality that earlier browsers had. Just like these early browsers, search engine robots do not have the ability to do certain things. Robots cannot get past password protected areas. They do not understand frames, Flash movies, nor Images or JavaScript. Even if you use a robot, you have to click the buttons on your website. They can cease to function while using JavaScript navigation or when indexing a dynamically generated URL. A search engine robot retrieves data and finds information and links on the web.

Spiders are able to determine the content of your page by looking at the visible text, the HTML code, and links. Based on the words it finds, the spider determines what the site is about using a complex algorithm to determine what is and isn’t important. Spiders also collect links from websites to follow later, which allows them to effectively hop from site to site to site. Since the entire internet is made up of links between websites, the robots use them to make their way through the internet as they search.

Submitting a new URL to a search engine adds this URL to the queue which the spiders are due to ‘crawl’ or visit. However, even if a URL isn’t submitted directly, the spiders usually find it through links from other websites. If you build link popularity, this will help the spiders find you faster. When the robots arrive, they’ll check your site for a file called ‘robots.txt,’ which will tell them what areas of the website they are not allowed to visit. Off-limits files may include things like binaries or other information that the spiders need not report back.

When the robots return, the information they gathered is assimilated into the search engine’s database. Through a complex algorithm, this data is interpreted and web sites are ranked according to how relevant they are to various topics that would be searched for. Some of the bots are quite easy to notice – Google’s is the appropriately-named Googlebot, where Inktomi utilizes a more ambiguous bot named Slurp. Others may be difficult to identify at all.

There may be robots that you do not want to visit your website such as aggressive bandwidth grabbing robots and others. The ability to identify individual robots and the number of their visits is useful. Information on the undesirable robots is helpful also. IP names and addresses of search engine robots are listed at the end of this article in a resources section. These robots read the pages on your website by visiting your page and looking at the text that is visible on the page, and then looks at the source code tags such as title tags, meta tags and others. They look at the hyperlinks on your page. From these links, the search engine robot can determine what your page is about. Each search engine has its own algorithm to determine what is important. Information is indexed and delivered to the search engine’s database according to how the robot has been set up through the search engine.

If you’re interested in seeing which pages the spiders have visited on your website, you can check your server logs or the results from your log statistics. From this information you’ll know which spiders have visited, where they went, when they came, and which pages they crawl most often. Some are easy to identify, such as Google’s ‘Googlebot,’ while others are harder: ‘Slurp’ from Inktomi, for example. In addition to identifying which spiders visit, you can also find if any spiders are draining your bandwidth so that you can block them from your site. The internet has plenty of information on identifying these bad bots. There are also certain things can prevent good spiders from crawling your site, such as the site being down or huge amounts of traffic. This can prevent your site from being re-indexed, though most spiders will eventually come by again to try re-accessing the page.

Justin Harrison is an internationally recognised Internet Marketing Consultant expert who provides world class Search Engine Optimization to website owners. For more information visit: http://www.seorankings.co.za

Internet search engines are some of popular and useful web pages on the web. Google, Microsoft and other search sites are taken advantage of by significant numbers of people each day as they look for web pages, facts, or items to order. Due to the fact that there are lots of people employing search engines each day they serve as an excellent opening for organizations and sellers to influence potential clients.

Seeing a website included on a search engine such as Yahoo is able to deliver significant numbers of individuals to a site and is considered one of the fastest methods to get indexed is through paid campaigns. Paid results are usually the sites at the margins of search engine returned listings.

These kinds of links can be had by giving money to the search engines, normally they are purchased as CPC, also known as cost per click, listings. CPC means that marketers pay the internet search destination only when visitors visit an ad and are directed to an merchants site on the internet.

Pay per click internet search destination advertising has turned out to be a highly efficient customer acquisition option. When looked at next to other forms of promotion such as banner advertisements or traditional channels like outdoor advertising search engine marketing has a greater ROS, or return on spend. So for numerous businesses cash allocated on search engine advertising translates into a larger quantity of sales then the equivalent funds invested on alternative advertising channels.

Search advertising has proven to be a very helpful customer acquisition channel that has so much volume that during the last several years it has served as the foundation for a number of small companies. Professionals throughout the world have taken advantage of search traffic to earn serious revenue on the internet via showing advertising messages, affiliate programs, and numerous other methods.

Lots of profitable internet marketers realize their first success by using affiliate programs. Affiliate is the term for sellers which market different individual’s items in exchange for a part of revenues. The affiliate model has functioned very well online and has enabled lots of entrepreneurs to use the usefulness of search advertising without being forced to take the time to establish propriety items.

The writer is knowledgeable about online commerce and internet technologies and has successfully helped numerous businesses make money online. Find additional articles on online business ideas such search engine optimization, email, blogging and social media.