Status Code
A three-digit number in an HTTP response indicating outcome, 200 OK, 401 Unauthorized, 500 Internal Server Error, that defenders read to understand application behavior and detect abuse.
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HTTP
The most substantial related concept here, covered by 9 lessons.
HTTPStart here
9
lessons
Request
8
lessons
Response
8
lessons
Threat to Detection
7
lessons
Statistical Analysis for Detection
5
lessons
Credential Stuffing
2
lessons
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Related Lessons
8 lessons cover this conceptWeb Architecture and Request Flow
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URLs, Domains, DNS, and Hosting
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HTTPS and TLS in the Browser
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Cookies and Sessions
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Authentication and Authorization in Web Apps
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Input Handling and Injection Attacks
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CSRF, CORS, and Security Headers
General Beginner
Defensive Web Thinking
General Beginner
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