Smins: Website optimization should avoid spider traps

Some Web site data technology due to the lack of knowledge of the site optimization, often design some for the search engine is very unfriendly pages, not conducive to search engine spiders crawl and crawl, these technologies are called spider traps. Common to avoid spider traps include the following forms:
1, Flash
in a small part of the Web page to enhance the visual effects of flash is very normal, such as Flash made of ads, icons and so on. This small flash and the picture is the same, but the HTML code in a very small part of the page there are other text-oriented content, so the search engine crawl and included no impact.
But some sites are a large flash file, which constitutes a spider trap. Search engine grab get HTML code only a link to the Flash file, no other text content and links. Search engines are unable to read the text content and links in the Flash file. This web site is a flash site, may be a wonderful visual effect, but the search engine can not see, cannot index any text information, also can not judge the relevance.
2, session ID
Some sites use the session ID to track user access, and each user visiting a Web site generates a unique session ID, added to the URL. Search wins every visit to the spider will also be treated as a new user, the URL back with a different session ID, so that the search engine spiders each time to access the same page URL will not be the same, followed by an unusual session ID.
3, various jumps
In addition to our most common 301 turn, search engines are more sensitive to other forms of jump, such as 302 jump, JavaScript jump, flash jump, Meta refresh jump.
Some Web site user access is a page that is automatically moved to a directory below. If you are moving to the right directory by user location, that's understandable. But most of these shifts do not see any reason or purpose, and such a diversion can be avoided.
If you have to turn, 301 turn is recommended by the search engine, for Web site change, you can transfer the weight of the page from the URL to the new URL. The other way of turning to spiders is not crawling, because they are cheating is a technique.
4, Frame structure
If you are the webmaster of the website, do not know what is frame structure, then congratulations, you have avoided this spider trap, there is no need to know what is the frame structure. If you are still using the frame structure in your Web site design, it is recommended that you cancel it. Frame structure is not conducive to search engine crawling, for the search to win money, access to the use of the framework of the Web site to crawl the HTML contains only the callOther HTML files in the code, and no text information, search engines can not determine what the content of this page. The
5, dynamic URL
Dynamic URL is a URL generated by a database-driven Web site with a question mark, equal sign, and parameter. Generally speaking, dynamic URL is not conducive to search engine spiders crawling, should try to avoid.
6, JavaScript links
Because JavaScript can create a lot of attractive visuals, some sites like to use JavaScript scripts to generate navigation systems, which is a serious spider trap. Although search engines are trying to parse JS script, but we can not hope that the search engine to overcome their own difficulties, but to let search engines to track the work of crawling links as easy as possible.
7, mandatory use of cookies
some websites in order to achieve a certain function, such as remembering user login information, tracking user access path, and so on, forcing users to use cookies, user browser if the cookies are not enabled, the page display is not normal. Search engine spiders are equivalent to a browser that disables cookies, forcing the use of cookies only to make the search engine spiders inaccessible.
I am here to remind the vast number of webmaster, do their own site optimization when a long-term process, do not want to use the way to fast rankings, the site spider traps are often met the webmaster, it is best to avoid using. This article from: Bubble Hall http://bbs.44pg.com/thread-2974-1-1.html