in the process of site optimization, we fear most is the case is right down, because the site weight directly affects the keyword ranking, and no ranking, no flow, no traffic, no transformation, finally no transformation, of course, there is no income. In fact, strictly speaking, many factors cause sites to be right down, today we have designs from the Web site content on leading websites right down causes.
1, IFRAME, js and Flash too much we know, a good user experience Web site must be illustrated. But if too many pages containing Flash or js or iframe, frame will cause the search engine crawling problems. Because search engines now can't read Flash content, it is difficult to grab the frame content, this will cause detrimental to crawling code on the page, at the same time will dilute keyword density in your code.
2, missing Sitemap map if there are too many sections and content pages of our Web site, you need to make a spider sees the navigation map, this is the sitemap sitemap. Sitemap includes HTML and RSS in two types, if necessary, to both of these types of maps are produced well and placed in the root directory, while we are at the top or bottom of each page of the sitemap URL, guide the spiders crawling.
3, excessive number of internal links, we all know that the page be done well within the chain, but too much of the chain and not within a reasonable distribution chain will allow effects backfire. Good page should contain relevant, hot spots, recommend, random, plate, should control the number of page in the chain in less than 100, this will contribute to include also to user experience.
4, the number of bytes of content too little search engine requires more pages of original content to appear, and many webmasters do not spend too much time to do this, we often find some page topic content bytes is too small. Doing so will cause pages to repeat through the hazards of high, and may be considered to be the same page or similar pages.
5, accumulation of ALT key words as the search engines can't read images, so we need to join in the ALT text description. Alt description should be a decently statement not indiscriminate accumulation of keywords.
6, dead links, sometimes we have to face the website, so many pages for a new station, does not fit, so many owners may delete the original page. Because of the presence in the search engine database sentence has the URL of the page, and this is what we will do a good 404 page 404 status code.
7, bobots.txt error in the robots.txt at the root of the Web site is to tell search engines what content is allowed to access the contents of, of which the content is not allowed access. Many people do not pay attention to the robots file settings, especially when testing a site by joining some shielding properties of the spider, if on-line forgot to modify, indexed results in difficulties.
8 webmasters, too many ads Union many grass roots, especially traffic alone earn ad click on site, page or join the many ads Union ads, in fact, too many advertising and will also affect the page loading speed, and many advertisements are js call, these will have a negative effect on the page.
9, Web site load speed is too slow I said in the article before server impact ranking problems, here is not too much about. In short, server stability and load directly influence ranking and weighting.
from 9 above analysis of the causes of design content cause sites right down, when a site is down under may wish to follow this idea when first seriously reflect on and corrected in a timely manner in order to restore weight. Webmasters-this article by the wrist electronic only snore http://www.koloyo.com Hefei mother original, copyright issues you have.

