What should I do if my website is changed?

What should I do if my website is changed?Many websites are worried about user habits during the revision process.

Some are reasonable and some are redundant. Before worrying about it, let's clarify two problems:

First, do you have any old users? How many old users are there? If the website itself is provided to users of the walk-up-and-use type, such as the visit guide system at the entrance of a certain Museum, it is completely oriented to new users, there are no old users at all. In addition, some websites are very bad (products may be poor or easy to use). People who take a look will not come back, so there will be no old user habits in any way.

Second, if the website is frequently used by users, they will see it once or twice a day, every week, or every month. The Revision must take into account the habits of old users. For example, Gmail, Douban, MSN, and Sina.
However, there are also many websites, especially e-commerce websites. Users come up not every month, but only when there is demand, such as Dangdang, such as Ctrip, such as PPG. Users can't even remember the dominant colors of your website, let alone the steps in your reservation process (remember your domain name ).