The websites or web pages preferring to stay private and having a password (Basic access authentication), normally returns HTTP 401 status which ends up being marked as “down” by Uptime Robot.
Uptime Robot now has support for monitoring password-protected websites by optionally mentioning the username-password in the monitor’s settings.
The feature exists for both HTTP and Keyword monitors and can be found in the “optional settings” link of “Add New and Edit Monitor dialogs”.
P.S. The API requests, responses and documentation are updated accordingly.