1. Don't use frames
If at all possible, avoid frames. Many search engines have difficulty with frames and it is very difficult to get high search engine rankings for web sites that use frames.
Google says about frames: "Reasons your site may not be included: Your page uses frames.
Google supports frames to the extent that it can. Frames tend to cause problems with search
engines, bookmarks, emailing links and so on, because frames don't fit the conceptual model of the web (every page corresponds to a single URL). If a user's query matches the site as a whole,
Google returns the frame set. If a user's query matches an individual page on the site, Google
returns that page. That individual page is not displayed in a frame -- because there may be no frame set corresponding to that page."
Yahoo has a similar statement: "Yahoo! Slurp follows HREF links. It does not follow SRC links. This means that Yahoo! Slurp does not retrieve or index individual frames referred to by SRC links." Don't use frames on your web site if you want to have high search engine rankings!
2.Avoid Flash and other multimedia elements
Most search engines cannot index Flash pages. The normal text content on your web pages matters most to search engines. If you must use Flash on your web site, make sure that you also offer normal text for the search engines.
3. Don't use welcome pages
Some web pages use a "Welcome to our web site" image with a link to the actual site as the index page for the web site. Don't do this. Some search engines might not follow the link on the welcome page. In addition, most web surfers don't like these welcome pages.
4. Avoid dynamically created web pages
Databases and dynamically generated pages are great tools to manage the contents of big web
sites. Imagine having to manage the Web site contents of the New York Times without databases. Unfortunately, dynamically generated Web pages can be a nightmare for search engine spiders because the pages don't actually exist until they are requested. A search engine spider is not going to be able to select all necessary variables on the submit page.
Some search engines can index dynamically pages to a point, but even Google states that they have problems with dynamically created pages: "Reasons your site may not be included in Google: Your pages are dynamically generated. We are able to index dynamically generated pages. However, because our web crawler can easily overwhelm and crash sites serving dynamic content, we limit the amount of dynamic pages we index."
5. Make sure that search engine spiders can access your web site
Search engine spiders don't have the functionality of full-fledged Web browsers such as Microsoft Internet Explorer, Firefox or Netscape Navigator. In fact, search engine robot programs look at your Web pages like a text browser does. They like text, text, and more text. They ignore information contained in graphic images but they can read
6. Avoid special characters in your URL
Most search engines have problems indexing web pages when their URLs contain special
characters. The following special characters are known to be "search-engine-spider-stoppers":
* ampersand (&)
* dollar sign ($)
* equals sign (=)
* percent sign (%)
* question mark (?)
These characters are often found in dynamically generated Web pages. They signal the search
engine crawler program that there could be an infinite loop of possibilities for that page. That's whysome search engines ignore web page URLs with the above characters.
7. Choose a reliable and fast hosting service
Your web page should be hosted by a reliable hosting service. Otherwise, it could happen that your web server is down when a search engine spider tries to index it. If your web site fails to respond when the search engine's index software program visits your site, your site will not be indexed. Even worse, if your web site is already indexed and the search engine spider finds that your site is down,you'll possibly be removed from the search engine database. It's essential to host your web site on servers that are very seldom down.
Search engine crawler programs that index Web pages don't have much time. There are approximately 4-6 billion Web pages all over the world and search engines want to index all of them.So if the host server of your Web site has a slow connection to the Internet, you may experience that your Web site will not be indexed by the major search engines at all.
You may also want to limit the size of your homepage to less than 60K. It'd also benefit the still
numerous users that connect to the Internet with a slow modem. For even the casual Internet user,the performance of a Web site can make the difference between pleasure and frustration.
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