July 2026
Intermediate
729 pages
33h 9m
English
Content preview from Ethical Hacking
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3.3 Well-Known Files
Well-known files are standardized paths on a web server where certain machine-readable information is provided. They enable search engines, browsers, security researchers, and other services to retrieve specific information about a website in a targeted and efficient manner. The term well-known files originated in request for comment (RFC) 8615, and it describes a naming scheme for URLs that is structured according to the following pattern (see https://datatracker.ietf.org/doc/html/rfc8615):
https://example.com/.well-known/[filename]
You can also use well-known files to provide specific functionalities or information for machines in a standardized way, which saves resources and increases compatibility.
These files must ...
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