Six kinds of situations cause web site difficult to be indexed by search engines

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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.

Reason one: website dead chain Many

This is easy to ignore, before your website online, even remove those useless dead chain, also cannot because "good-looking" and keep.

Reason two: The site's robots.txt file is corrupted or misspelled

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 three: The URL contains too many variables URL

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

Reason four: 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 the session ID appearing on your Web site and use the session to store the conversation ID.

Reason five: Your Web page contains too much code

The Web page contains Java 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 Six: Website navigation

Most search engine robots cannot parse Java or DHTML menus, and of course flash and Ajax menus are less effective.