HTTP/1.1 (RFC 9112)
- Category
- Web and networking protocols
- Docs outline
- 9 sections
Official docs outline
rfc-editor.org- Message format and parsing
Start-line, header section and body structure, plus robust parsing rules for HTTP/1.1 messages.
- Request line and request target
Method, origin-form, absolute-form, authority-form and asterisk-form request targets.
- Status line
Status code and reason phrase syntax in HTTP/1.1 responses.
- Field syntax
Header field line syntax, whitespace, obsolete line folding and field parsing.
- Message body length
How Content-Length and Transfer-Encoding decide where a message body ends.
- Transfer codings and chunked encoding
Chunked transfer coding, chunk extensions and trailer fields.
- Persistent connections
Keep-alive, pipelining and connection reuse in HTTP/1.1.
- Connection tear-down
Graceful close, Connection: close and handling premature closure.
- Request smuggling
How conflicting Content-Length and Transfer-Encoding enable request smuggling.
Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.