(a) the web server is too slow.
to a website, is a judgment index of search engine on its website on the degree of importance of the snapshot is usually above suspicion doubt, we say there is no spider crawling, grabbing, access. However, in the very many factors, or correction of our website snapshot will not be updated from time to time, so we often turn on the computer every day will use the tools to check their website information from the snapshot to the friends of the chain included, etc.. So if our snapshots are not normal, is what causes it? Today I will share with you three of the most common and key factors.
(two) the content of the website is not good quality.