Several common spider traps in SEO

In our optimization process, there are some web design technology for search engines is very dislike. Because these are not conducive to search engine spiders crawl and crawl. Below to give you a simple introduction of several common spider traps, I hope to help some novice seoer, write a bad, but also ask everyone a lot of support!

One of the most common pitfalls of search engines is flash. It is normal to use Flash to enhance visual effects in a small part of the Web page, such as advertising with flash, icons, etc. Such flash on the search engine crawling and crawling is no effect. However, you must not use a large Flash file on the homepage, because this will form a spider trap. When the search engine crawls the HTML code with only one link to the Flash file, there is no other text content. If the flash effect is mandatory, add a link to the HTML version on the home page. This link is to be in the HTML code outside the Flash file, the search engine tracks this link to crawl the later HTML version page.

Another common spider trap is the session ID. Some sites use the session ID to track users ' rhetorical questions, and each user will generate a unique session ID, added to the URL, when they visit the site. Search engine spiders Every visit will also be treated as a new user, the URL will be added a different session ID, so the search engine spider each time to access the same page URL will not be the same, followed by a different session ID is a spider trap.

A variety of jumps is also one of the spider traps, in addition to the 301 turn, search engines on other forms of jump are more sensitive, such as: 302 Jump, JavaScript jump, flash jump, Meta refresh jump. Some site users will be automatically moved to a page in a directory when they visit the homepage. But most of the home page turn to see no reason and purpose, such as the steering should be able to mian Mian, less than the last resort, try not to use the 301 turn outside the jump.

Frame structure can also be regarded as a spider trap, if you are still using the framework structure of the design, I rookie SEO2014 here to suggest that everyone stop immediately. Don't waste time studying how to get a search engine to include a frame-structured web site. Because the search engine cannot determine whether the page content in the frame should belong to the main frame or to the file that the frame calls.

Dynamic URL is not conducive to search engine spiders crawling, should try to avoid.

JavaScript links can create a lot of good visuals, but it's also a spider trap. Here, rookie SEO2014 tell you, using CSS as a navigation system can create a good visual effect, so, we can use CSS instead of JavaScript, may be more than a multiplier!

Some Web site content must be logged after the user can see, we can try to guess, if the search engine want to crawl the content of the page, do you want to log in first, to be clear, search engines will not fill in information and registered members. So we have to avoid this spider trap.

Finally to introduce a very worthy of everyone's attention to the spider trap, that is when a Web site 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, if the user's browser does not enable cookies, the page display will not be normal. This problem directly points to the search engine, because the search engine spider is equivalent to a browser to disable cookies, if forced search engine spiders use cookies will cause the normal access.

Warm tip: These spider traps rookie SEO2014 here seriously remind everyone in doing SEO should pay special attention to, do not let search engine spiders fell into their own set traps. We can not rely on the search engine, hope it can overcome their own difficulties, we can do is to make the search engine crawling and crawling work as simple and easy as possible, we can never get into the dead!