Information from api requests
If you're using the robots.txt viewer extension on google chrome, the server do collect some base informations like if you're browsing the website.
In addition, the following data is collected on a request:
Requested website (Schema and domain name)
origin of the request (Usually the identification of the browser extension ID)
User IP (encrypted in the database)
Browser User Agent / API identification
Browser DNT Flag (Do Not Track)
The IP address in encrypted form is used for identification to locate and block excessive API requests. The user agent can also be used to determine the origin of excessive requests.