What Has Web Crawlers Got To Do With SEO
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We're not referring to the eight legged spiders hanging around outside your house, but rather we mean the spiders that search engines uses to find and catalogue content on the World Wide Web. There are certain formulas used in order for the spiders to accurately rank the information they find on their journeys across the Internet. This isn't something you need to have an in-depth knowledge of or even understand past the fact that they exist, search for content, find it, use it and it gets ranked.
What you really want to know is the ranking part and what it might mean for your website. Spiders aren't that complicated to understand, as they are merely intelligent robots that gather information. That means they are only able to read certain types of content.
If you want a real disaster on your hands, have Javascript or image text on your website and stand back and watch as the spiders are unable to read it. Spiders can't read them. If you want to know what a spider sees, then you have to be able to adjust your website once you know.
How would I go about seeing what a spider sees? Don't panic, it's very easy with a search engine spider simulator. To get around content that looks like its being missed use image descriptions by making use of something called the "alt" tag.
Here is another thing you may do, use alt tags for Flash descriptions. Don't place too many keywords or you over do the optimization or wind up being told you're keyword stuffing. Don't worry about links, as the spider software will tell you if they are in the proper locations.
Just a word of about link exchange websites. Some of them put in fake links to your site by using Javascript. If a link isn't in the right place, the simulator won't show the link so you know it's not functional.
Some people figure you need to have a whole heap of links to rank well, as the more the merrier. If you have too many links, you get errors like "403 Forbidden" and "404 Page Not Found." If the links are non functional and go nowhere, the spider simulator won't be able to point to the right location. Remember that spiders only will show a link that is pointed in the right direction, so if a link doesn't show then it is not working.
Article Source: Articlelogy.com
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