The five common reasons that lead to search engines not included

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For each webmaster, the most critical of a certain too search engine can normally be included, once the site can not normally include everything is wishful thinking.

Why are there difficulties? This is because the search engine robot is a very simple software program, it itself on the site does not have any understanding of the ability, just through some inherent standards to judge the quality of the site, once the site in the wording of the error, the search engine will not be able to collect the site.

The following are 5 common causes of difficulty:

Reason one: The site's robots.txt file is corrupted or there are errors in writing (for example, typos). If search engine robots mistakenly understand your robots.txt files, they may completely ignore your Web page. The solution to this problem is to double-check your robots.txt files and make sure that the parameters on your Web page are correct.

Reason two: The URL contains too many variables

Too many variables in the Web site may cause search engine robots to be difficult to find. If your URL contains too many variables, search engine bots may ignore your pages. For this problem some people who are familiar with the production of web pages may think of dynamic Web pages, is indeed the problem, dynamically generated pages (including ASP, PHP) may lead to crawl tools can not be included, the solution to use static pages.

Reason three: Use the session ID in your URL

Many search engines do not include Web pages that contain session IDs because they can cause duplication of content. If possible, avoid session IDs appearing on your Web site and use cookies to store session IDs.

Reason four: Your Web page contains too much code

The Web page contains JavaScript code, CSS code, and other scripting code. This code is not directly related to the content, access to your Web page and select "View Source" or "View HTML source", if you are difficult to make changes to the actual content on the site, it is often difficult to collect the search engine.

Reason Five: Website navigation

Most search engine bots cannot parse JavaScript or DHTML menus, and of course flash and Ajax menus are less effective. That private will be a more standard navigation, such as the PP Web site navigation, also contains JavaScript, the best solution is to write the code into the CSS file, the site navigation itself code must be clean, does not contain JavaScript or DHTML menu.

There is also a common link problem, as mentioned above, search engine robot is very simple program, they follow the HTML link, once the link error on the inclusion will also bring difficulties. This article is supplied by www.pp-pp.org.