CHICAGO SEARCH ENGINE OPTIMIZATION, CHICAGO SEO

Web spiders are automated scripts or programs that browse through the internet in a highly methodical and automated manner. Search engines utilize these web spiders which crawl the web to find information on the millions of web pages that exist on the World Wide Web. The browsing process is called web spidering or web crawling.
There is a lot of speculation and theories, most of them wacky and unrealistic, out there about how web spiders function. Search engines utilize crawlers which are automated software programs that crawl the web to find information on the millions of web pages. These crawlers, alternatively referred to as spiders, move by following the links for one website to another and storing the textual content and the keywords from the web pages into a database from each website. The starting point for website crawling are usually very popular websites with high page rank on heavily used servers. The spider initiates the search on the popular website, indexes the words on its pages and then follows every single link found within the website. In this way, the search engine spider looks at a huge number of pages, continuously building and maintaining a useful list of words. The web spider travels and spreads out across the most frequently used portions of the Web in an efficient and fast manner.
A demonstration by the founders of Google, Sergey Brin and Lawrence Page show how quickly web spiders can function. They use multiple spiders, usually three at a time. Each spider can keep open about 300 connections to web pages at a particular time. At its maximal performance, with the help of four spiders, the system could crawl up to a rate of 100 pages per second, which amounts to the generation of around 600 kilobytes of data per second which is a very impressive amount of data.

Chicago SEO GROUP

Search engines are important resources that are highly utilized during the process of browsing the internet and trying to find useful information. For example, if we want to find a car repair company around our neighborhood, we go to a search engine such as Google, type in what we are looking for and are given a list of results. All the major search engines including Google, Yahoo and MSN have their own web spiders.
Google, the biggest and most popular search engine, began as an academic search engine. Google’s spider software is referred to as the “Google bot.” There are currently two different forms of Google spiders involved in web page indexation: deepbot and freshbot. The deepbot spider tries to follow every single link on webpages; it then takes the information back to the Google indexers so that it can be analyzed or indexed. On the other hand, the freshbot spider crawls through web in an attempt to find new content and may visit websites more frequently than the deepbot. When the Google spider enters a website, it mainly cares about two things: the words within the webpage and the location of these words. Words that occur in the meta tags, subtitles and title and other important positions are given special consideration. For example, some spiders will record the words in the links, title and sub-headings, each word in the first 10 lines of text along with the most frequently used words on the web page. These methods allow the web spider system to operate in a highly efficient and effective manner.

Google now uses more than 1 million servers, giving search results, images, videos, emails and ads in a highly powerful manner. Google’s success is the culmination of a highly complicated set of innovations. Google is operated by a science driven page rank algorithm which allures an extremely high number of searchers and guarantees pretty efficient and accurate search results. The Ad sense text ad program, a genius of market driven innovation, is one of the solid revenue streams of Google. Another essential element for the success of Google is that it is much more than a search engine. It allows video delivery, email, image and document storage and lots of it. This massive informational network is operated on about a million servers and 3 million computers. To accomplish this, Google spends approximately 200 to 250 million US dollars per year on IT equipment. Google also uses a lot of cheap off the shelf servers with open source and free LINUX to decrease its operating costs.
Google surpasses the other search engines by far in its power, speed and magnitude. Google uses much clearer tools and better spiders than Yahoo, MSN and Altavista. Some of these great tools are Google, Adsense, AdWords and Analizator. These enable the customers to find the best and most optimal results for their search.