If access to a website you're security testing is restricted by means of an HTTP or basic authentication, you'll have to provide the credentials to allow Beagle Security to access it and perform the penetration test.
The below image is an example of a website with HTTP authentication.
HTTP authentication is the simplest technique for enforcing access controls by prompting a website visitor to provide a username and password to gain access to a website.
Companies use it mainly to protect internet-facing development or staging environments where access needs to be provided only for employees.