6, sometimes we have to face the dead link website, so many pages are not suitable for the new station, so many webmaster can be deleted the original page. Because in a database search engine exists these pages URL, which we will do 404 pages and 404 status code.
3, the number of internal links we all know that the page to do the chain, but the excessive and unreasonable distribution within the chain within the chain would be counterproductive. Good page should contain the relevant hot recommendation, random plate, the number of pages within the chain should be controlled within 100, this is conducive to the collection is also conducive to the user experience.
2, the lack of sitemap map if we site columns and page content too much, you need to make a spider to see the navigation map, this is the sitemap site map. Sitemap includes HTML and RSS two types, if necessary, the two types of map making and placed in the root directory, and we are at the top of each page or at the bottom of the sitemap URL, to guide the spider crawling.
site optimization process, we are most afraid of the situation is right to be reduced, because the site weight will directly affect the keywords ranking, and no ranking is no traffic, no traffic does not translate, finally did not translate words, there is no income. In fact, strictly speaking, there are many factors that lead to site is down right, today we will talk about the content of the website design from the aspects of the cause of the site right down.
7, bobots.txt error in the root directory of the site in the robots.txt of the content is to tell the search engines what content is allowed to access the content, which is not allowed. Many people do not pay attention to robots>
5, ALT is not due to accumulation of keywords search engine reads the image content, so we need to add a text description in ALT. Alt should be a coherent statement rather than random accumulation of keywords.
, 4 bytes of content too little search engine requirements page has more original content, but many owners can not spend too much time to do this, so we often find some of the page theme too few bytes. This will cause the page to do harm to high repetition, which may be considered to be the same or similar page page.
1, iframe, JS and flash than we know, a good user experience of the website must be illustrated. But if the page contains too much flash or JS or iframe framework will lead to the search engines crawl difficulties. Because the search engine now still can not read flash content, it is difficult to grasp the framework of content, it will cause the spider to grab the page code, at the same time will dilute the code in the density of keywords.