Website version
 

Website version is a common site right down one way, if a web site traffic flow, it need not be revised, if indeed affect user experience, which slowly change, not one whole change, cause the second day bd grab your web site, you become a appearance, don't know you, bd thought is new sites, also need to know your new sites, will need to review, verify, again came right for a period of time, but if the weight is high, will soon be good, if the weight low, time will grow some.