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[değiştir] What's With Those Search Engines?
If you're looking for something on the Internet and don't know a specific web site address, what do you do? You type in a search term at a Search Engine such as Google, MSN, Yahoo, etc., right? How do all those web links end up in the search engines? Search engines are searchable databases of web sites compiled by software called search "spiders" or "crawlers." These spiders index information they find in a web site, some of them also crawling through links found within a web site like a big chain. Search spiders do not crawl the web in real time; they simply gather the information and then index it in a database for a search engine. Only after a web page is indexed will that page be searchable in the search engine's database. How do the search spiders find the web sites? If a site or page is not linked to from a crawled web site, or is not directly submitted by someone (webmaster, page author, etc.), it will not be accessible from a search engine. Engines primarily use these two methods of finding out about new sites and pages. In most cases, submission to search engines is free. However because of the enormous quantity of information out there on the Web, it can sometimes take weeks or months for the spiders to get around to crawling a web site. While you can often pay to speed up the submission process, for example to get your site looked at by Yahoo or Looksmart, this does not guarantee your site will be listed. Different search engines have different criteria for inclusion in their databases Some will only crawl the first 50 to 110KB of a page, so if you have excessively long web pages, there may be a lot of information that never makes it to the search engines. Still, 50 to 110KB leaves room for a lot of textual content. And CONTENT IS KING. Without plenty of good content on your site, there won't be much for the search engines to "pick up" and compare with what searches are entered. Some search engines, such as Google, get much or most of their information from other databases. Google uses the <a href="http://www.dmoz.org" target="_blank">Open Directory Project</a> as a primary Web directory. Some search engines (such as Google again) offer cached versions of web pages to speed up searches. This means it can take weeks or longer sometimes before Google finally includes an updated version of a page in its database. How do search engines determine how high to rank a page? Search engines "look" at several factors to determine relevancy in searches, which in turn determines in part how high a site will be ranked for a given search:
Note that not all search engines look at all factors. Some search engines ignore alt text completely. Some search engines do not look at META tags; some search engines look only at the META description or META keywords. All search engines assign very high priority to the text on a web page. This means that if your web page is comprised mainly of images and very little text, there won't be much for the search engines to index -- which also means any web page out there with a higher density of relevant text will be ranked higher. Does that mean you should create a page with nothing but keywords repeated over and over again, and submit it to 50,000 Free For All link sites? After all, if it's great to have some keywords and have your link on other web sites, then it must be even better to have thousands of keywords and thousands of other sites linking to you, right? Nope. Absolutely NOT. Create a web page with no real content except for a whole bunch of keywords, and your site will be ranked lower or even banned by the search engines for spamming. The same goes for web sites with a lot of linking from Free For All link sites (also known as FFA's). Web sites which are submitted to FFA's are increasingly being banned from search engines because the search engines rank relevancy - not just useless links with no real purpose except linking. If a search engine detects that your site is linked from FFA's, watch out. A single link from a web site that ranks high in Yahoo is worth more than 5000 FFA links. In fact if you have 5000 FFA links, don't plan to see your web site in the search engines very much longer! OK, so HOW do you make a web site get a higher ranking in the search engines? It sounds pretty tricky. Actually, it is. Good ranking in search engines is a combination of many factors. To complicate matters, search engines are continually updating their methods and algorithms so that what's effective today may not be as effective next week, and new factors may take priority. Additionally, many search engines are starting to give much more emphasis and higher rankings to paid submissions, purchased keywords and keyword phrases, and even promoting price bidding for keywords and ranking. Other search engines combine paid keyword positioning with pay-per-clicks, in other words web site owners pay the search engine a set amount for every click-through from the search engine to the listed web site. This can get fairly expensive pretty fast. If you can't afford to pay hundreds or thousands of dollars every month for search engine positioning, it's still not hopeless, but it takes much more effort and time. At a minimum, this is what is necessary:
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