Spiders on the Web: Web Crawlers and Search Engines

What are Web Crawlers? Ever wonder how your search engine comes back with endless information when you hit the search button for just about any topic? Web Crawlers, also known as Web Spiders, Bots, and Web Roots is the answer to that one. So, what is a Web Crawler? It’s a program, or script, that methodically browses the web and gathers information from web pages and indexes all of the information on the page and drops it in a main dispensary.

Web Spiders Can…

  • Provide up-to-date data (If you were to change a phone number etc.)Spider
  • Checking Links
  • Validating HTML Code
  • Help Market Researchers find the most up-to-date words and terms used today

Web Crawlers, and using them correctly, are a crucial method for collecting data on the ever expanding web. With so many webpages being added daily, and all of the information that is constantly changing, search engines like Google, Yahoo, and Bing would be all but useless without them. Search engines wouldn’t work at all in fact.

The Dark Side, Web Crawlers can be used for evil as well.

Some choose to use Web Crawlers maliciously…

  • Hacking Servers
  • Gathering Info for Spamming

So, how exactly do they work? When a Web Crawler visits a page it “reads” visible text, hyperlinks, tags, and keyword rich Meta tags. Using the info that it just “read” the Web Crawler will determine what the web page is about and index it.

This is just the simple synopsis of what Web Crawlers do, why, and how. Of course there are many details involved with making sure the Web Spiders read your web page correctly. Don’t have a 500 page website, make sure your webpage and domain name are relevant to your company or business, and hire a good SEO team. Find the right SEO team, and you’ll be set for excellent presence on the World Wide Web.

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