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Header normalization section#32

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MDA2AV merged 2 commits intomainfrom
feature/header-normalization
Feb 13, 2026
Merged

Header normalization section#32
MDA2AV merged 2 commits intomainfrom
feature/header-normalization

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Http11Probe — Compliance Comparison

Server Score
Glyph11 113/127 ██████████████████░░ 89%
Spring Boot 105/127 █████████████████░░░ 83%
Express 102/127 ████████████████░░░░ 80%
Apache 101/127 ████████████████░░░░ 80%
Jetty 101/127 ████████████████░░░░ 80%
Uvicorn 98/127 ███████████████░░░░░ 77%
HAProxy 95/127 ███████████████░░░░░ 75%
Kestrel 94/127 ███████████████░░░░░ 74%
ServiceStack 94/127 ███████████████░░░░░ 74%
Ntex 91/127 ██████████████░░░░░░ 72%
Actix 88/127 ██████████████░░░░░░ 69%
Bun 88/127 ██████████████░░░░░░ 69%
Nginx 88/127 ██████████████░░░░░░ 69%
H2O 87/127 ██████████████░░░░░░ 69%
Puma 86/127 ██████████████░░░░░░ 68%
Tomcat 86/127 ██████████████░░░░░░ 68%
FastHTTP 85/127 █████████████░░░░░░░ 67%
Gunicorn 82/127 █████████████░░░░░░░ 65%
Envoy 79/127 ████████████░░░░░░░░ 62%
Deno 77/127 ████████████░░░░░░░░ 61%
SimpleW 76/127 ████████████░░░░░░░░ 60%
Hyper 75/127 ████████████░░░░░░░░ 59%
Traefik 75/127 ████████████░░░░░░░░ 59%
Watson 75/127 ████████████░░░░░░░░ 59%
Caddy 74/127 ████████████░░░░░░░░ 58%
Quarkus 74/127 ████████████░░░░░░░░ 58%
Gin 72/127 ███████████░░░░░░░░░ 57%
PHP 65/127 ██████████░░░░░░░░░░ 51%
Pingora 52/127 ████████░░░░░░░░░░░░ 41%
GenHTTP 47/127 ███████░░░░░░░░░░░░░ 37%
EmbedIO 42/127 ███████░░░░░░░░░░░░░ 33%
Flask 42/127 ███████░░░░░░░░░░░░░ 33%
NetCoreServer 37/127 ██████░░░░░░░░░░░░░░ 29%
Node 34/127 █████░░░░░░░░░░░░░░░ 27%
Lighttpd 30/127 █████░░░░░░░░░░░░░░░ 24%
Sisk 0/127 ░░░░░░░░░░░░░░░░░░░░ 0%

Compliance

Server BASELINE BARE-LF-REQUEST-LINE BARE-LF-HEADER OBS-FOLD SP-BEFORE-COLON MULTI-SP-REQUEST-LINE MISSING-HOST INVALID-VERSION EMPTY-HEADER-NAME CR-ONLY-LINE-ENDING MISSING-TARGET FRAGMENT-IN-TARGET HTTP09-REQUEST INVALID-HEADER-NAME HEADER-NO-COLON DUPLICATE-HOST CL-NON-NUMERIC CL-PLUS-SIGN WHITESPACE-BEFORE-HEADERS DUPLICATE-HOST-SAME HOST-WITH-USERINFO HOST-WITH-PATH ASTERISK-WITH-GET OPTIONS-STAR UNKNOWN-TE-501 LEADING-CRLF ABSOLUTE-FORM METHOD-CASE POST-CL-BODY POST-CL-ZERO POST-NO-CL-NO-TE POST-CL-UNDERSEND CHUNKED-BODY CHUNKED-MULTI CHUNKED-EMPTY CHUNKED-NO-FINAL UPGRADE-POST UPGRADE-MISSING-CONN UPGRADE-UNKNOWN METHOD-CONNECT EXPECT-UNKNOWN GET-WITH-CL-BODY CHUNKED-EXTENSION UPGRADE-INVALID-VER METHOD-TRACE HOST-EMPTY-VALUE REQUEST-LINE-TAB VERSION-MISSING-MINOR VERSION-LEADING-ZEROS VERSION-WHITESPACE CONNECTION-CLOSE HTTP10-DEFAULT-CLOSE HTTP10-NO-HOST HTTP12-VERSION TRACE-WITH-BODY CHUNKED-TRAILER-VALID CHUNKED-HEX-UPPERCASE
Expected 2xx 400 or close (pass), 2xx (warn) 400 or close (pass), 2xx (warn) 400 400 400 or 2xx 400 400/505 or close 400 or close 400 400 or close 400 or 2xx 400/close/timeout 400 or close 400 or close 400 400 or close 400 or close 400 or close 400 400 or close 400 or close 400 or close 2xx 400/501 or close 400 or 2xx 2xx preferred; 400 warns 400/405/501 or 2xx 2xx 2xx or close 2xx or close 400/close/timeout 2xx 2xx 2xx or close 400/close/timeout !101 !101 !101 400/405/501 or close 417 or 2xx 400 or 2xx 2xx preferred; 400 warns non-101 (426 preferred) 405/501 or 2xx 400 or close 400 or 2xx 400 or close 400 or close 400 or close 2xx + close 2xx + close 200 or 400 200 or 505 400/405 or 200 2xx 2xx
Actix 200 ⚠️200 ⚠️200 400 400 400 200 400 400 400 400 ⚠️200 400 400 400 200 400 400 400 200 200 200 200 200 400 ⚠️200 200 ⚠️200 200 200 200 TimedOut 200 200 200 TimedOut TimedOut TimedOut 200 TimedOut ⚠️200 ⚠️200 200 TimedOut ⚠️200 200 400 400 400 400 200 200 ⚠️200 400 ⚠️200 400 200
Apache 200 400 400 200 400 400 400 200 400 400 400 400 ClosedByServer 400 400 400 400 400 400 400 400 400 400 200 400 ⚠️200 200 501 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 405 417 ⚠️200 200 ⚠️200 ⚠️200 400 400 400 400 400 200 200 ⚠️200 ⚠️200 413 200 200
Kestrel 200 ⚠️200 ⚠️200 400 400 400 400 505 400 400 400 404 400 200 400 400 400 200 400 400 400 400 405 405 400 ⚠️200 200 ⚠️200 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 405 ⚠️200 ⚠️200 200 ⚠️200 405 200 400 400 400 400 200 200 ⚠️200 ⚠️505 405 200 200
Bun 200 505 400 400 400 400 400 505 200 505 400 ⚠️200 505 400 400 200 400 400 400 200 200 200 400 400 400 400 200 ClosedByServer 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 200 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 500 ⚠️200 505 505 505 200 200 500 ⚠️505 ⚠️200 200 200
Caddy 200 ⚠️200 ⚠️200 200 400 400 400 505 400 400 400 ⚠️200 TimedOut 400 400 400 400 400 400 400 400 400 200 200 501 400 200 ⚠️200 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 200 417 ⚠️200 200 ⚠️200 ⚠️200 200 400 400 400 400 200 200 ⚠️200 ⚠️200 ⚠️200 200 200
Deno 200 ⚠️200 ⚠️200 400 400 400 200 400 400 400 400 ⚠️200 400 400 400 200 400 400 400 200 200 200 400 200 400 ⚠️200 200 ⚠️200 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 200 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 500 400 400 400 400 200 200 ⚠️200 400 ⚠️200 200 200
EmbedIO 200 ⚠️200 ⚠️200 ClosedByServer 200 ClosedByServer ClosedByServer 200 ClosedByServer ClosedByServer ClosedByServer ⚠️200 ClosedByServer 200 ClosedByServer 200 200 200 ClosedByServer 200 200 200 ClosedByServer ClosedByServer 200 ⚠️200 200 ⚠️200 200 200 200 TimedOut 200 200 200 200 200 200 200 ClosedByServer ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 ClosedByServer ClosedByServer ClosedByServer ClosedByServer ClosedByServer 200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 200 200
Envoy 200 ⚠️200 ⚠️200 200 400 ⚠️200 400 426 400 400 400 400 426 400 400 200 400 400 400 200 200 400 400 404 501 400 200 400 200 200 200 200 200 200 200 200 403 200 403 404 ⚠️200 ⚠️200 200 403 ⚠️200 200 ⚠️200 400 400 400 200 426 426 426 ⚠️200 200 200
Express 200 400 400 400 400 ⚠️200 400 400 400 400 400 404 TimedOut 400 400 200 400 400 400 200 200 200 404 404 400 ⚠️200 200 400 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 ClosedByServer 417 ⚠️200 200 ⚠️200 404 200 400 400 400 400 200 200 ⚠️200 400 404 200 200
FastHTTP 200 ⚠️200 ⚠️200 200 400 ⚠️200 200 200 400 400 400 ⚠️200 400 400 TimedOut 200 400 400 400 200 200 200 200 200 400 ⚠️200 200 ⚠️200 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 200 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 200 400 400 400 400 200 200 ⚠️200 ⚠️200 ⚠️200 200 200
Flask 200 ⚠️200 ⚠️200 200 200 ⚠️200 200 ClosedByServer 200 ClosedByServer ClosedByServer ⚠️200 TimedOut 200 200 200 200 200 200 200 200 200 200 200 200 ClosedByServer 200 ⚠️200 200 200 200 TimedOut 200 200 200 TimedOut 400 200 200 200 ⚠️200 ⚠️200 500 400 ⚠️200 200 ⚠️200 ClosedByServer 200 ClosedByServer 200 200 ⚠️200 ⚠️200 ⚠️200 500 200
GenHTTP 200 400 ⚠️200 200 200 ⚠️200 400 400 200 400 400 404 400 200 200 200 400 200 400 200 200 200 200 405 200 400 404 ⚠️200 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 404 ⚠️200 ⚠️200 500 ⚠️200 405 200 400 400 400 400 200 200 400 400 405 200 200
Gin 200 ⚠️200 ⚠️200 200 400 400 400 505 400 400 400 ⚠️200 400 400 400 400 400 400 400 400 400 400 200 200 501 400 200 ⚠️200 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 200 417 ⚠️200 200 ⚠️200 ⚠️200 200 400 400 400 400 200 200 ⚠️200 ⚠️200 ⚠️200 200 200
Glyph11 200 400 400 400 400 400 400 400 400 400 400 400 TimedOut 400 400 400 400 400 400 400 400 400 400 200 400 400 200 ⚠️200 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 400 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 200 400 400 400 400 200 ⚠️200 400 400 ⚠️200 200 200
Gunicorn 200 400 400 400 400 400 200 400 400 400 400 ⚠️200 400 400 400 200 400 400 400 200 200 200 200 200 200 400 200 400 200 200 200 TimedOut 200 200 200 200 200 200 200 200 417 ⚠️200 200 ⚠️200 ⚠️200 200 400 400 400 400 200 200 ⚠️200 ⚠️200 ⚠️200 200 200
H2O 200 ⚠️200 ⚠️200 400 400 ⚠️200 200 400 400 400 400 ⚠️200 400 400 400 200 400 400 400 200 200 200 200 200 400 400 200 ⚠️200 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 405 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 200 400 400 400 400 200 200 ⚠️200 ⚠️200 ⚠️200 200 200
HAProxy 200 ⚠️200 ⚠️200 200 400 ⚠️200 200 200 400 400 400 400 400 400 400 400 400 400 400 200 400 400 400 200 400 ⚠️200 200 ⚠️200 200 200 200 200 200 200 200 200 200 200 200 200 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 200 ⚠️200 400 400 400 200 200 ⚠️200 ⚠️200 ⚠️200 200 200
Hyper 200 ⚠️200 ⚠️200 400 400 400 200 400 400 400 400 ⚠️200 400 400 400 200 400 400 400 200 200 200 200 200 400 ⚠️200 200 ⚠️200 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 200 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 200 400 400 400 400 200 200 ⚠️200 400 ⚠️200 200 200
Jetty 200 ⚠️200 ⚠️200 400 400 ⚠️200 400 505 400 400 505 ⚠️200 505 400 400 400 400 400 400 400 400 400 400 200 400 ⚠️200 200 ⚠️200 200 200 200 TimedOut 200 200 200 TimedOut 200 400 200 200 ClosedByServer ⚠️200 200 ⚠️200 ⚠️200 400 400 505 505 400 200 200 ⚠️200 ⚠️505 ⚠️200 200 200
Lighttpd 200 ⚠️200 ⚠️200 200 200 ⚠️200 200 200 200 200 200 ⚠️200 TimedOut 200 200 200 200 200 200 200 200 200 200 200 200 ⚠️200 200 ⚠️200 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 200 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 200 ⚠️200 200 200 200 200 200 ⚠️200 ⚠️200 ⚠️200 200 200
NetCoreServer 200 ⚠️200 ⚠️200 200 200 ⚠️200 200 200 400 400 200 ⚠️200 TimedOut 200 200 200 400 400 200 200 200 200 200 200 TimedOut ⚠️200 200 TimedOut 200 200 TimedOut TimedOut 200 200 200 TimedOut TimedOut 200 200 TimedOut ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 200 TimedOut 200 200 200 200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 200 200
Nginx 200 ⚠️200 ⚠️200 400 400 ⚠️200 400 505 400 400 400 ⚠️200 ClosedByServer 200 200 400 400 400 400 400 200 400 400 400 501 ⚠️200 200 400 200 200 200 200 200 200 200 200 200 200 200 400 ⚠️200 ⚠️200 200 ⚠️200 405 400 400 400 400 400 200 200 ⚠️200 ⚠️200 405 200 200
Node 200 400 400 400 400 ⚠️200 400 400 400 400 400 ⚠️200 TimedOut 400 400 200 400 400 400 200 200 200 200 200 400 ⚠️200 200 400 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 ClosedByServer 417 ⚠️200 200 ⚠️200 ⚠️200 ClosedByServer Error Error Error Error Error Error Error Error Error Error Error
Ntex 200 ⚠️200 ⚠️200 400 400 400 200 400 400 400 400 ⚠️200 400 400 400 200 400 400 400 200 200 200 200 200 400 ⚠️200 200 ⚠️200 200 200 200 TimedOut 200 200 200 TimedOut TimedOut TimedOut TimedOut TimedOut ⚠️200 ⚠️200 200 TimedOut ⚠️200 200 400 400 400 400 200 200 ⚠️200 400 ⚠️200 400 200
PHP 200 ⚠️200 ⚠️200 200 200 ⚠️200 200 200 ClosedByServer ClosedByServer ClosedByServer ⚠️200 TimedOut ClosedByServer 200 200 ClosedByServer ClosedByServer 200 200 200 200 200 200 200 ⚠️200 200 ClosedByServer 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 200 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 200 ClosedByServer ClosedByServer ClosedByServer ClosedByServer 200 200 ⚠️200 ⚠️200 ⚠️200 200 200
Pingora 200 ⚠️200 ⚠️200 400 400 ⚠️200 200 400 400 400 400 ⚠️200 400 400 400 200 200 200 400 200 200 200 200 200 200 ⚠️200 200 ⚠️200 200 200 200 TimedOut 200 200 200 TimedOut TimedOut 200 200 200 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 200 400 400 400 400 200 200 ⚠️200 400 ⚠️200 200 200
Puma 200 400 400 400 400 400 200 200 400 500 400 ⚠️200 400 400 400 200 400 400 400 200 200 200 200 200 400 500 200 400 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 501 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 200 400 400 200 400 200 200 ⚠️200 ⚠️200 ⚠️200 200 200
Quarkus 200 ⚠️200 ⚠️200 200 400 ⚠️200 400 200 200 400 400 ⚠️200 400 400 400 200 400 400 400 200 400 400 404 404 200 ⚠️200 200 405 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 404 ⚠️200 ⚠️200 200 ⚠️200 405 200 ⚠️200 400 200 400 200 200 ⚠️200 ⚠️200 405 200 200
ServiceStack 200 ⚠️200 ⚠️200 400 400 400 400 505 400 400 400 ⚠️200 400 200 400 400 400 200 400 400 400 400 405 200 400 ⚠️200 200 ⚠️200 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 200 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 200 400 400 400 400 200 200 ⚠️200 ⚠️505 ⚠️200 200 200
SimpleW 200 400 400 400 400 400 400 400 400 400 400 404 TimedOut 400 400 400 400 400 400 400 200 200 400 400 200 400 ⚠️400 404 200 200 200 TimedOut TimedOut TimedOut TimedOut TimedOut 200 200 200 400 ⚠️200 ⚠️200 TimedOut ⚠️200 404 200 400 400 400 400 200 200 ⚠️200 400 404 200 TimedOut
Sisk Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error
Spring Boot 200 ⚠️200 ⚠️200 200 400 ⚠️200 400 505 400 400 ClosedByServer ClosedByServer ClosedByServer 400 400 400 400 400 400 400 400 400 400 200 501 ⚠️200 200 405 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 501 417 ⚠️200 200 ⚠️200 405 200 ⚠️200 505 505 400 200 200 ⚠️200 ⚠️505 405 200 200
Tomcat 200 ⚠️200 ⚠️200 200 400 ⚠️200 400 505 400 400 ClosedByServer ClosedByServer ClosedByServer 400 400 400 400 400 400 400 400 400 400 200 501 ⚠️200 200 405 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 501 417 ⚠️200 200 ⚠️200 405 200 ⚠️200 505 505 400 200 200 ⚠️200 ⚠️505 405 200 200
Traefik 200 ⚠️200 ⚠️200 200 400 400 400 505 400 400 400 400 400 400 400 400 400 400 400 400 400 400 404 200 501 400 200 ⚠️200 200 200 200 TimedOut 200 200 200 TimedOut 200 200 200 404 417 ⚠️200 200 ⚠️200 ⚠️200 200 400 400 400 400 200 200 ⚠️200 ⚠️200 ⚠️200 200 200
Uvicorn 200 400 400 400 400 ⚠️200 200 400 400 400 400 ⚠️200 TimedOut 400 400 200 400 400 400 200 200 200 200 200 400 ⚠️200 200 400 200 200 200 TimedOut 200 200 200 TimedOut 400 200 200 400 ⚠️200 ⚠️200 200 400 ⚠️200 200 400 400 400 400 200 200 ⚠️200 400 ⚠️200 200 200
Watson 200 ⚠️200 ⚠️200 400 200 400 400 505 400 400 400 ⚠️200 400 400 400 200 400 200 400 200 200 200 400 400 501 ⚠️200 200 ⚠️200 200 200 411 TimedOut TimedOut TimedOut TimedOut TimedOut 411 TimedOut TimedOut 400 TimedOut TimedOut TimedOut TimedOut TimedOut 400 400 400 400 400 TimedOut TimedOut TimedOut TimedOut TimedOut TimedOut TimedOut

Smuggling

Server CL-TE-BOTH DUPLICATE-CL CL-LEADING-ZEROS TE-XCHUNKED TE-TRAILING-SPACE TE-SP-BEFORE-COLON CL-NEGATIVE CLTE-PIPELINE TECL-PIPELINE CL-TRAILING-SPACE TE-DOUBLE-CHUNKED CL-EXTRA-LEADING-SP TE-CASE-MISMATCH CL-COMMA-DIFFERENT TE-NOT-FINAL-CHUNKED TE-HTTP10 CHUNK-BARE-SEMICOLON BARE-CR-HEADER-VALUE CL-OCTAL CHUNK-UNDERSCORE TE-EMPTY-VALUE TE-LEADING-COMMA TE-DUPLICATE-HEADERS CHUNK-HEX-PREFIX CL-HEX-PREFIX CL-INTERNAL-SPACE CHUNK-LEADING-SP CHUNK-MISSING-TRAILING-CRLF CHUNK-EXT-LF CHUNK-SPILL CHUNK-LF-TERM CHUNK-EXT-CTRL CHUNK-EXT-CR TE-VTAB TE-FORMFEED TE-NULL CHUNK-LF-TRAILER TE-IDENTITY CHUNK-NEGATIVE TRANSFER_ENCODING CL-COMMA-SAME CHUNKED-WITH-PARAMS EXPECT-100-CL TRAILER-CL TRAILER-TE TRAILER-HOST TRAILER-AUTH HEAD-CL-BODY OPTIONS-CL-BODY CL-UNDERSCORE CL-NEGATIVE-ZERO CL-DOUBLE-ZERO CL-LEADING-ZEROS-OCTAL TE-OBS-FOLD TE-TRAILING-COMMA TE-TAB-BEFORE-VALUE ABSOLUTE-URI-HOST-MISMATCH MULTIPLE-HOST-COMMA CHUNK-BARE-CR-TERM TRAILER-CONTENT-TYPE
Expected 400 or 2xx 400 or close 400 or 2xx 400/501 or close 400/501 or 2xx+close 400 or close 400 or close 400 or close 400 or close 400 or 2xx 400 or 2xx 400 or 2xx 400 or 2xx 400 or close 400 or close 400 or close 400 or close 400 or close 400 or close 400 or close 400 or close 400 or 2xx 400 or close 400 or close 400 or close 400 or close 400 or close 400 or close 400 or 2xx 400 or close 400 or 2xx 400 or close 400 or close 400 or close 400 or close 400 or close 400 or 2xx 400/501 or close 400 or close 400 or 2xx 400 or 2xx 400 or 2xx 400 or 2xx 400 or 2xx 400 or 2xx 400 or 2xx 400 or 2xx 400 or 2xx 400 or 2xx 400 or close 400 or close 400 or 2xx 400 or 2xx 400 or 2xx+close 400 or 2xx 400 or 2xx 400 or 2xx 400 or close 400 or close 400 or 2xx
Actix ⚠️200 400 ⚠️200 400 400 400 400 200 200 ⚠️200 400 ⚠️200 400 400 400 200 200 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 200 400 ⚠️200 400 400 100 400 400 400 400 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 400 400 400 ⚠️200 200 400 400
Apache ⚠️200 400 ⚠️200 400 ⚠️200 400 400 200 200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 200 200 400 400 400 400 ⚠️200 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 ⚠️200 400 400 100 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 ⚠️200 400 ⚠️200 ⚠️200 400 400 ⚠️200
Kestrel ⚠️200 400 ⚠️200 400 400 400 400 200 200 ⚠️200 400 ⚠️200 400 400 400 400 200 400 400 400 400 400 400 400 400 400 400 400 400 400 400 200 400 400 400 400 TimedOut 400 400 ⚠️200 400 400 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 405 405 400 200 ⚠️200 ⚠️200 400 400 400 400 400 400 ⚠️200
Bun 400 200 ⚠️200 400 400 400 400 400 400 ⚠️200 400 ⚠️200 400 400 400 400 200 400 400 400 200 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 ⚠️200 400 400 ⚠️200 400 400 100 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 400 400 400 ⚠️200 500 400 ⚠️200
Caddy ⚠️200 400 ⚠️200 501 TimedOut 400 400 200 200 ⚠️200 501 ⚠️200 TimedOut 400 501 200 200 400 400 200 501 501 501 200 400 400 200 200 ⚠️200 200 ⚠️200 200 200 400 400 400 TimedOut 501 200 ⚠️200 400 501 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 TimedOut 501 TimedOut ⚠️200 400 200 ⚠️200
Deno ⚠️200 400 ⚠️200 400 500 400 400 200 200 ⚠️200 500 ⚠️200 500 400 400 400 200 400 400 500 400 500 400 500 400 400 500 500 500 500 500 200 500 400 400 400 TimedOut 400 500 ⚠️200 400 400 100 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 400 400 500 ⚠️200 500 500 ⚠️200
EmbedIO TimedOut 200 ⚠️200 200 200 200 ClosedByServer 200 TimedOut ⚠️200 ⚠️200 ⚠️200 ⚠️200 200 200 200 200 200 200 200 200 ⚠️200 200 200 200 200 200 200 ⚠️200 200 ⚠️200 200 200 200 200 200 ⚠️200 200 200 ⚠️200 ⚠️200 ⚠️200 100 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 200 200 ⚠️200 ⚠️200 ClosedByServer ⚠️200 ⚠️200 ⚠️200 200 200 ⚠️200
Envoy 400 400 ⚠️200 400 400 400 400 400 400 ⚠️200 400 ⚠️200 400 400 501 400 200 200 400 200 400 400 400 200 400 400 200 200 ⚠️200 200 ⚠️200 200 200 400 400 400 ⚠️200 400 200 ⚠️200 400 400 100 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 400 400 400 ⚠️200 400 200 ⚠️200
Express 400 400 ⚠️200 400 400 400 400 400 400 ⚠️200 400 ⚠️200 400 400 400 400 400 400 400 400 200 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 ⚠️200 400 400 100 400 400 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 400 400 400 ⚠️200 200 400 ⚠️200
FastHTTP ⚠️200 400 ⚠️200 400 400 400 400 200 200 ⚠️200 400 ⚠️200 400 400 400 400 200 400 400 400 400 400 400 TimedOut 400 400 400 400 400 400 400 200 400 400 400 400 ⚠️200 200 400 ⚠️200 400 400 100 400 400 400 400 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 400 400 400 ⚠️200 200 400 ⚠️200
Flask ⚠️200 200 ⚠️200 200 TimedOut 200 200 200 200 ⚠️200 ⚠️200 ⚠️200 TimedOut 200 200 TimedOut 500 200 200 200 200 ⚠️200 200 200 200 200 200 500 500 500 ⚠️200 500 500 TimedOut TimedOut 200 ⚠️200 200 500 ⚠️200 ⚠️200 ⚠️200 100 500 500 500 500 ⚠️200 ⚠️200 200 200 ⚠️200 ⚠️200 TimedOut ⚠️200 TimedOut ⚠️200 200 500 500
GenHTTP TimedOut 200 ⚠️200 200 200 200 200 200 TimedOut ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 200 200 500 200 400 500 200 ⚠️200 200 200 400 400 200 500 500 500 500 500 500 200 200 200 500 200 500 ⚠️200 400 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 405 400 200 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 404 200 500 ⚠️200
Gin ⚠️200 400 ⚠️200 501 TimedOut 400 400 200 200 ⚠️200 501 ⚠️200 TimedOut 400 501 200 200 400 400 200 501 501 501 200 400 400 200 200 ⚠️200 200 ⚠️200 200 200 400 400 400 TimedOut 501 200 ⚠️200 400 501 100 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 TimedOut 501 TimedOut ⚠️200 400 200 ⚠️200
Glyph11 400 400 400 400 400 400 400 400 400 ⚠️200 400 ⚠️200 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 ⚠️200 ⚠️200 400 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 400 400 400 400 400 ⚠️200 200 400 ⚠️200
Gunicorn 400 400 ⚠️200 501 400 400 400 400 400 ⚠️200 400 ⚠️200 400 400 400 400 200 400 400 200 501 501 400 200 400 400 200 200 ⚠️200 200 ⚠️200 200 200 400 400 400 ⚠️200 200 200 ⚠️200 400 501 100 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 400 501 400 ⚠️200 200 200 ⚠️200
H2O ⚠️200 200 ⚠️200 400 400 400 400 200 200 ⚠️200 400 ⚠️200 400 400 400 400 200 400 400 400 400 400 400 400 400 400 400 400 400 400 400 200 400 400 400 400 ⚠️200 400 400 ⚠️200 400 400 100 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 400 400 400 ⚠️200 200 400 ⚠️200
HAProxy ⚠️200 400 ⚠️200 400 400 400 400 200 200 ⚠️200 400 ⚠️200 400 400 400 400 200 400 400 400 400 400 400 400 400 400 400 400 400 400 400 200 400 400 400 400 ⚠️200 400 400 ⚠️200 ⚠️200 400 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 400 400 400 400 400 400 ⚠️200
Hyper ⚠️200 400 ⚠️200 400 ⚠️200 400 400 200 200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 400 200 400 400 200 400 ⚠️200 400 200 400 400 200 200 ⚠️200 200 ⚠️200 200 200 400 400 400 TimedOut 400 200 ⚠️200 400 400 100 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 200 200 ⚠️200
Jetty 400 400 ⚠️200 400 400 400 400 400 400 ⚠️200 400 ⚠️200 400 400 400 400 200 400 400 400 400 400 400 400 400 400 400 200 ⚠️200 400 ⚠️200 400 400 400 400 400 ⚠️200 400 400 ⚠️200 400 400 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 400 400 400 400 400 400 ⚠️200
Lighttpd ⚠️200 200 ⚠️200 200 ⚠️200 200 200 200 200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 200 200 200 200 200 200 200 200 ⚠️200 200 200 200 200 200 200 ⚠️200 200 ⚠️200 TimedOut 200 200 200 200 TimedOut 200 200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 200 200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 200 200 ⚠️200
NetCoreServer TimedOut 200 ⚠️200 200 200 200 400 200 TimedOut 400 ⚠️200 ⚠️200 ⚠️200 400 200 200 200 400 400 200 TimedOut ⚠️200 200 200 400 400 200 200 ⚠️200 200 ⚠️200 200 200 200 200 200 TimedOut 200 200 ⚠️200 400 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 ⚠️200 200 200 ⚠️200
Nginx 400 400 ⚠️200 501 400 400 400 400 400 ⚠️200 501 ⚠️200 400 400 501 400 200 400 400 400 501 501 400 400 400 400 400 400 ⚠️200 400 ⚠️200 200 400 501 501 400 ⚠️200 501 400 ⚠️200 400 501 100 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 400 501 501 ⚠️200 400 400 ⚠️200
Node Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error
Ntex 400 400 ⚠️200 400 400 400 400 400 400 ⚠️200 400 ⚠️200 400 400 400 200 200 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 200 400 ⚠️200 400 400 100 400 400 400 400 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 400 400 400 ⚠️200 200 400 400
PHP ⚠️200 200 ⚠️200 200 ClosedByServer ClosedByServer ClosedByServer 200 200 ⚠️200 ⚠️200 ⚠️200 ClosedByServer ClosedByServer ClosedByServer ClosedByServer 200 200 ClosedByServer ClosedByServer 200 ⚠️200 ClosedByServer ClosedByServer ClosedByServer 200 ClosedByServer ClosedByServer TimedOut ClosedByServer ClosedByServer 200 ClosedByServer 200 200 200 ⚠️200 200 ClosedByServer ⚠️200 ClosedByServer ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ClosedByServer ClosedByServer ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 200 ClosedByServer ⚠️200
Pingora ⚠️200 400 ⚠️200 200 500 400 200 200 200 ⚠️200 ⚠️200 ⚠️200 500 200 200 500 200 400 200 500 200 ⚠️200 500 500 200 200 500 500 TimedOut 500 500 200 500 400 400 400 500 200 500 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 200 200 ⚠️200 ⚠️200 400 ⚠️200 500 ⚠️200 200 500 ⚠️200
Puma ⚠️200 400 ⚠️200 501 TimedOut 400 400 200 200 ⚠️200 400 ⚠️200 TimedOut 400 400 TimedOut 200 400 400 400 501 501 400 400 400 400 200 400 TimedOut 400 400 200 200 400 400 400 TimedOut 501 400 ⚠️200 400 501 100 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 400 TimedOut TimedOut ⚠️200 200 400 ⚠️200
Quarkus ⚠️200 400 ⚠️200 200 TimedOut 400 400 200 200 ⚠️200 TimedOut ⚠️200 TimedOut 400 200 TimedOut 200 400 400 ClosedByServer 200 TimedOut TimedOut ClosedByServer 400 400 200 ClosedByServer ⚠️200 200 ⚠️200 200 200 400 400 400 ⚠️200 200 ClosedByServer ⚠️200 400 ⚠️200 100 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 TimedOut TimedOut TimedOut ⚠️200 400 TimedOut ⚠️200
ServiceStack ⚠️200 400 ⚠️200 400 400 400 400 200 200 ⚠️200 400 ⚠️200 400 400 400 400 200 400 400 400 400 400 400 400 400 400 400 400 400 400 400 200 400 400 400 400 TimedOut 400 400 ⚠️200 400 400 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 200 ⚠️200 ⚠️200 400 400 400 400 400 400 ⚠️200
SimpleW TimedOut 400 ⚠️200 TimedOut TimedOut 400 400 TimedOut TimedOut ⚠️200 TimedOut ⚠️200 TimedOut 400 TimedOut TimedOut TimedOut 400 400 400 200 TimedOut TimedOut 400 400 400 TimedOut 500 TimedOut 500 500 TimedOut TimedOut TimedOut TimedOut TimedOut TimedOut 200 400 ⚠️200 400 TimedOut ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 404 404 400 400 ⚠️200 ⚠️200 400 TimedOut TimedOut 400 200 400 ⚠️200
Sisk Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error
Spring Boot ⚠️200 400 ⚠️200 501 400 400 400 200 200 ⚠️200 400 ⚠️200 400 400 400 400 200 400 400 400 400 400 400 400 400 400 400 400 400 400 400 200 400 400 400 400 400 501 400 ⚠️200 400 400 100 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 400 400 400 400 400 400 ⚠️200
Tomcat ⚠️200 400 ⚠️200 501 500 400 400 200 200 ⚠️200 400 ⚠️200 500 400 400 500 200 400 400 500 400 500 400 500 400 400 500 500 500 500 500 200 500 400 400 400 500 501 500 ⚠️200 400 400 100 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 500 500 500 400 400 500 ⚠️200
Traefik ⚠️200 400 ⚠️200 501 TimedOut 400 400 200 200 ⚠️200 501 ⚠️200 TimedOut 400 501 200 200 400 400 200 501 501 501 200 400 400 200 200 ⚠️200 200 ⚠️200 200 200 400 400 400 TimedOut 501 200 ⚠️200 400 501 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 TimedOut 501 TimedOut ⚠️200 400 200 ⚠️200
Uvicorn 400 400 ⚠️200 400 400 400 400 400 400 ⚠️200 400 ⚠️200 400 400 400 400 400 400 400 400 200 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 ⚠️200 400 400 100 400 400 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 400 400 400 ⚠️200 200 400 ⚠️200
Watson TimedOut 400 TimedOut 501 TimedOut TimedOut 400 TimedOut TimedOut TimedOut 501 TimedOut TimedOut 400 501 TimedOut TimedOut TimedOut 400 TimedOut 501 501 501 TimedOut 400 400 TimedOut TimedOut TimedOut TimedOut TimedOut TimedOut TimedOut TimedOut TimedOut 400 TimedOut 501 TimedOut TimedOut 400 501 100 TimedOut TimedOut TimedOut TimedOut TimedOut TimedOut 400 TimedOut TimedOut TimedOut 400 501 TimedOut TimedOut TimedOut TimedOut TimedOut

Malformed Input

Server BINARY-GARBAGE LONG-URL LONG-HEADER-VALUE MANY-HEADERS NUL-IN-URL CONTROL-CHARS-HEADER INCOMPLETE-REQUEST EMPTY-REQUEST LONG-HEADER-NAME LONG-METHOD NON-ASCII-HEADER-NAME NON-ASCII-URL CL-OVERFLOW WHITESPACE-ONLY-LINE NUL-IN-HEADER-VALUE CHUNK-SIZE-OVERFLOW H2-PREFACE CL-EMPTY CL-TAB-BEFORE-VALUE URL-BACKSLASH URL-OVERLONG-UTF8 URL-PERCENT-NULL URL-PERCENT-CRLF CHUNK-EXT-64K RANGE-OVERLAPPING POST-CL-HUGE-NO-BODY
Expected 400/close/timeout 400/414/431 or close 400/431 or close 400/431 or close 400 or close 400 or close 400/close/timeout 400/close/timeout 400/431 or close 400 or close 400 or close 400 or close 400 or close 400/close/timeout 400 or close 400 or close 400/505/close/timeout 400 or close 400 or 2xx 400 or 2xx/404 400 or close 400 or 2xx/404 400 or 2xx/404 400 or 2xx 200/206/400/416 400/close/timeout
Actix 400 400 200 431 400 400 408 408 ClosedByServer 200 400 400 400 400 400 400 400 400 ⚠️200 ⚠️200 400 ⚠️200 ⚠️200 ⚠️200 ⚠️200 413
Apache 400 414 400 400 400 400 TimedOut TimedOut 400 414 400 404 400 400 400 413 400 400 ⚠️200 ⚠️404 404 ⚠️404 ⚠️404 413 ⚠️206 TimedOut
Kestrel 400 414 431 431 400 200 TimedOut TimedOut 431 414 400 400 400 400 400 500 ClosedByServer 400 ⚠️200 ⚠️404 400 400 ⚠️404 ⚠️200 ⚠️200 413
Bun 400 431 431 431 505 400 TimedOut TimedOut 431 431 400 200 400 400 400 TimedOut 400 200 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 413
Caddy 400 200 200 200 400 400 TimedOut TimedOut 200 405 400 200 400 TimedOut 400 200 ClosedByServer 400 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 200
Deno 400 414 200 431 400 400 TimedOut TimedOut 431 200 400 400 400 400 400 500 TimedOut 400 ⚠️200 ⚠️200 400 ⚠️200 ⚠️200 500 ⚠️200 TimedOut
EmbedIO ClosedByServer 200 ClosedByServer ClosedByServer 200 200 TimedOut TimedOut ClosedByServer 200 200 200 200 ClosedByServer 200 200 ClosedByServer 200 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 TimedOut
Envoy 400 431 431 431 400 400 TimedOut TimedOut 431 431 400 400 400 400 400 200 TimedOut 400 ⚠️200 ⚠️200 400 ⚠️200 ⚠️200 ⚠️200 ⚠️200 200
Express 400 431 431 431 400 400 TimedOut TimedOut 431 400 400 400 400 400 400 400 400 400 ⚠️200 ⚠️404 400 ⚠️404 ⚠️404 413 ⚠️200 TimedOut
FastHTTP 400 431 431 431 200 400 TimedOut TimedOut 431 431 400 200 400 400 400 400 200 400 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400
Flask ClosedByServer 414 431 431 200 200 TimedOut TimedOut 431 414 200 200 TimedOut ClosedByServer 200 TimedOut ClosedByServer 200 ⚠️200 ⚠️200 200 ⚠️200 ⚠️404 500 ⚠️200 TimedOut
GenHTTP 400 400 400 200 404 200 400 TimedOut 200 400 200 404 400 400 200 500 400 400 ⚠️200 ⚠️404 404 ⚠️404 ⚠️404 400 ⚠️200 TimedOut
Gin 400 200 200 200 400 400 TimedOut TimedOut 200 200 400 200 400 400 400 200 200 400 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 TimedOut
Glyph11 TimedOut 431 431 431 400 400 TimedOut TimedOut 431 400 400 400 400 400 400 400 400 400 ⚠️200 400 400 400 ⚠️200 TimedOut ⚠️200 TimedOut
Gunicorn TimedOut 400 431 431 200 200 TimedOut TimedOut 431 400 400 200 TimedOut 400 400 200 400 400 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 TimedOut
H2O 400 200 200 400 400 400 ClosedByServer TimedOut 200 200 400 200 400 400 400 400 TimedOut 400 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 ClosedByServer
HAProxy 400 400 400 400 400 200 TimedOut TimedOut 400 400 400 400 400 400 400 400 TimedOut 400 ⚠️200 ⚠️200 400 ⚠️200 ⚠️200 ⚠️200 ⚠️200 200
Hyper 400 414 200 431 400 400 TimedOut TimedOut 431 200 400 200 400 400 400 200 ClosedByServer 400 ⚠️200 ⚠️200 400 ⚠️200 ⚠️200 ⚠️200 ⚠️200 TimedOut
Jetty 400 414 431 431 400 400 TimedOut TimedOut 431 431 400 400 400 400 400 400 426 400 ⚠️200 400 400 400 400 ⚠️200 ⚠️200 TimedOut
Lighttpd TimedOut 200 200 200 200 200 TimedOut TimedOut 200 200 200 200 200 200 200 200 TimedOut 200 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 ⚠️200 ⚠️206 TimedOut
NetCoreServer TimedOut 200 200 200 200 200 TimedOut TimedOut 200 TimedOut 200 200 TimedOut TimedOut 200 200 200 TimedOut ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 TimedOut
Nginx 400 414 400 400 400 200 TimedOut TimedOut 400 414 200 200 400 400 400 400 400 400 400 ⚠️200 200 400 ⚠️200 ⚠️200 ⚠️200 413
Node Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error
Ntex 400 400 400 400 400 400 408 408 400 400 400 200 400 400 400 400 400 400 ⚠️200 ⚠️200 400 ⚠️200 ⚠️200 ⚠️200 ⚠️200 400
PHP ClosedByServer ClosedByServer ClosedByServer ClosedByServer ClosedByServer 200 TimedOut TimedOut ClosedByServer ClosedByServer ClosedByServer ClosedByServer TimedOut ClosedByServer 200 ClosedByServer Error Error Error Error Error Error Error Error Error Error
Pingora 400 200 200 400 200 400 TimedOut TimedOut 400 200 400 200 200 400 400 500 400 200 ⚠️200 ⚠️200 400 ⚠️200 ⚠️200 500 ⚠️200 TimedOut
Puma 400 400 400 ClosedByServer 400 400 TimedOut TimedOut 400 ClosedByServer 400 200 TimedOut 400 400 500 501 400 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 ClosedByServer ⚠️200 TimedOut
Quarkus 400 414 431 431 400 400 TimedOut TimedOut 431 414 400 200 400 TimedOut 400 ClosedByServer TimedOut 400 ⚠️200 400 200 ⚠️200 ⚠️200 ClosedByServer ⚠️200 413
ServiceStack 400 414 431 431 400 200 TimedOut TimedOut 431 414 400 400 400 400 400 500 ClosedByServer 400 ⚠️200 ⚠️200 400 400 ⚠️200 ⚠️200 ⚠️200 413
SimpleW 400 413 413 413 404 200 TimedOut TimedOut 413 413 400 404 400 400 200 500 400 400 ⚠️200 ⚠️404 404 ⚠️404 ⚠️404 TimedOut ⚠️200 413
Sisk Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error Error
Spring Boot 400 400 400 400 400 400 TimedOut TimedOut 400 400 400 400 400 400 400 400 ClosedByServer 400 ⚠️200 400 400 400 ⚠️404 400 ⚠️200 TimedOut
Tomcat 400 400 400 400 400 400 TimedOut TimedOut 400 400 400 400 400 400 400 500 ClosedByServer 400 ⚠️200 400 400 400 ⚠️200 500 ⚠️200 TimedOut
Traefik 400 200 200 200 400 400 TimedOut TimedOut 200 200 400 200 400 400 400 200 ClosedByServer 400 ⚠️200 ⚠️200 200 ⚠️200 ⚠️200 ⚠️200 ⚠️200 200
Uvicorn 400 200 200 200 400 400 TimedOut TimedOut 200 400 400 400 400 400 400 400 400 400 ⚠️200 ⚠️200 400 ⚠️200 ⚠️200 ⚠️200 ⚠️200 TimedOut
Watson 400 TimedOut 400 400 TimedOut 400 TimedOut TimedOut 400 TimedOut 400 TimedOut 400 400 400 TimedOut 505 400 TimedOut TimedOut TimedOut TimedOut TimedOut TimedOut TimedOut TimedOut

Commit: cab78b3

@MDA2AV MDA2AV merged commit 1fb453b into main Feb 13, 2026
1 check failed
@MDA2AV MDA2AV deleted the feature/header-normalization branch February 14, 2026 14:50
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