The 1Mbps bandwidth of the ECS cloud server can support a certain number of user logins. There is no clear answer to this. How many people can log in depends on many factors, including the following:

The nature of the website or application:

Different types of websites or applications have different bandwidth requirements. Simple static websites usually have low bandwidth requirements, while dynamic websites, video streaming, online games, etc. have high bandwidth requirements.

The number of visits to the website or application:

Access volume is an important factor affecting bandwidth usage. If a large number of users visit websites or use applications at the same time, more bandwidth resources will be consumed.

Optimization of website or application:

Good website or application optimization can reduce bandwidth demands. Optimization includes compressing file size, caching static resources, using CDN to accelerate, etc.

User Behavior and Activity Type:

User behavior and activity types can also affect bandwidth usage. For example, if a user uploads or downloads a large file on the website, it will consume more bandwidth resources.

It should be noted that the bandwidth of 1Mbps may become a bottleneck when multiple users log in at the same time, resulting in slower website response or longer loading time. If you expect a large number of users to log in at the same time, or if the website needs to handle a large amount of data transfer, it is recommended to consider providing higher bandwidth.

For specific bandwidth requirements and user scale, it is recommended to conduct tests and evaluations based on actual conditions. You can use network monitoring tools to monitor bandwidth usage, and use the data to assess whether you need to upgrade bandwidth or adjust server configuration.