1、 Incomplete communication in the early stage leads to unsatisfactory production in the later stage;

2、 The source code cannot be delivered and cannot be opened for the second time in the later stage;

3、 Whether the registered owner of the domain name and website registration are the company's own information;

4、 The background only has the right to use, without the highest management authority;

5、 There is no SEO function and no way to do a good job in natural ranking and optimization.