Tools' info:

• User-agent is mostly used to set the request Headers in the crawler and is the simplest disguise for the crawler.
• This tool automatically generates user-agents for different platforms, systems and browsers by setting different parameters.
• When the parameter is not selected, no restriction is set, and user-agent is randomly generated. If the parameter is set, the corresponding user-agent is generated.
• When there is a conflict between the set parameters, the appropriate user-agent cannot be generated and an error message is displayed.