HTTP-statuskoder per klass
Standardkoder länkar till den RFC som definierar dem. Koder som bara används av Cloudflare eller nginx är märkta som icke-standard. Etiketten på varje rad visar om en HTTP-monitor i Uptimecheck räknar koden som uppe eller nere med standardinställningarna (200–399 är uppe).
Ingen statuskod matchar. Prova ett nummer som 404, eller ett ord som ”timeout”. Visa alla koder
1xx Informational
Interim responses: the request is under way and the real answer follows.
- 100 Continue The server got the request headers and the client may send the body. Monitor: Preliminär
- 101 Switching Protocols The server agrees to switch the connection to another protocol. Monitor: Nere
- 102 Processing Deprecated A WebDAV server is still working on a long request. Monitor: Preliminär
- 103 Early Hints The server sends preload hints before the final response is ready. Monitor: Preliminär
2xx Success
The request was received, understood and accepted.
- 200 OK The request succeeded. Monitor: Uppe
- 201 Created The request created a new resource. Monitor: Uppe
- 202 Accepted The request was accepted but hasn’t been processed yet. Monitor: Uppe
- 203 Non-Authoritative Information The request succeeded, but a proxy changed the content. Monitor: Uppe
- 204 No Content The request succeeded and there is no body to send. Monitor: Uppe
- 205 Reset Content The request succeeded and the client should reset the form that sent it. Monitor: Uppe
- 206 Partial Content The server sends only the part of the file the client asked for. Monitor: Uppe
- 207 Multi-Status One WebDAV response holds a separate status for several resources. Monitor: Uppe
- 208 Already Reported WebDAV members were already listed earlier in the same response. Monitor: Uppe
- 226 IM Used The server answered with changes to a version the client already has. Monitor: Uppe
3xx Redirection
The client has to go somewhere else to complete the request.
- 300 Multiple Choices The resource has several versions and the client may pick one. Monitor: Uppe
- 301 Moved Permanently The page has moved to a new URL for good. Monitor: Uppe
- 302 Found The page is temporarily at another URL. Monitor: Uppe
- 303 See Other The client should get the result from another URL with a GET. Monitor: Uppe
- 304 Not Modified The copy the client already has is still current. Monitor: Uppe
- 305 Use Proxy Deprecated A deprecated code that told the client to use a proxy. Monitor: Uppe
- 306 (Unused) Reserved, not used A reserved code that is no longer used. Monitor: Uppe
- 307 Temporary Redirect The page is temporarily elsewhere and the method must be kept. Monitor: Uppe
- 308 Permanent Redirect The page has moved for good and the method must be kept. Monitor: Uppe
4xx Client error
The server is up, but refuses the request as it was sent.
- 400 Bad Request The server won’t process a request it sees as malformed. Monitor: Nere
- 401 Unauthorized The request needs valid authentication. Monitor: Nere
- 402 Payment Required A code reserved for future use, used by some services for unpaid accounts. Monitor: Nere
- 403 Forbidden The server understood the request but refuses it. Monitor: Nere
- 404 Not Found The server has nothing at this URL. Monitor: Nere
- 405 Method Not Allowed The URL exists but doesn’t accept this request method. Monitor: Nere
- 406 Not Acceptable The server can’t answer in a format the client accepts. Monitor: Nere
- 407 Proxy Authentication Required A proxy between the client and the server needs credentials. Monitor: Nere
- 408 Request Timeout The server gave up waiting for the client to send the request. Monitor: Nere
- 409 Conflict The request conflicts with the resource’s current state. Monitor: Nere
- 410 Gone The page has been removed for good. Monitor: Nere
- 411 Length Required The server requires a Content-Length header. Monitor: Nere
- 412 Precondition Failed A condition in the request headers turned out false. Monitor: Nere
- 413 Content Too Large The request body is larger than the server accepts. Monitor: Nere
- 414 URI Too Long The URL is longer than the server will read. Monitor: Nere
- 415 Unsupported Media Type The server doesn’t accept the format of the request body. Monitor: Nere
- 416 Range Not Satisfiable The requested part of the file doesn’t exist. Monitor: Nere
- 417 Expectation Failed The server can’t meet the request’s Expect header. Monitor: Nere
- 418 (Unused) Reserved, not used The reserved “I’m a teapot” code from an April Fools’ RFC. Monitor: Nere
- 421 Misdirected Request The request reached a server that can’t answer for this host name. Monitor: Nere
- 422 Unprocessable Content The request is well-formed but its content isn’t valid. Monitor: Nere
- 423 Locked The WebDAV resource is locked. Monitor: Nere
- 424 Failed Dependency A WebDAV action failed because another one it depended on failed. Monitor: Nere
- 425 Too Early The server won’t risk processing a request that could be replayed. Monitor: Nere
- 426 Upgrade Required The server requires the client to switch to another protocol. Monitor: Nere
- 428 Precondition Required The server requires a conditional request. Monitor: Nere
- 429 Too Many Requests The client sent too many requests in a given time. Monitor: Nere
- 431 Request Header Fields Too Large The request headers are too large for the server. Monitor: Nere
- 444 No Response Icke-standard · nginx Nginx closed the connection without sending anything. Monitor: Nere
- 451 Unavailable For Legal Reasons Access is denied because of a legal demand. Monitor: Nere
- 499 Client Closed Request Icke-standard · nginx The client hung up before nginx could answer. Monitor: Preliminär
5xx Server error
The server, or something in front of it, failed to answer the request.
- 500 Internal Server Error The server hit an unexpected error. Monitor: Nere
- 501 Not Implemented The server doesn’t support what the request needs. Monitor: Nere
- 502 Bad Gateway A proxy got an invalid response from the server behind it. Monitor: Nere
- 503 Service Unavailable The server is temporarily overloaded or down for maintenance. Monitor: Nere
- 504 Gateway Timeout A proxy didn’t get an answer from the server behind it in time. Monitor: Nere
- 505 HTTP Version Not Supported The server doesn’t support the request’s HTTP version. Monitor: Nere
- 506 Variant Also Negotiates The server’s content negotiation is misconfigured. Monitor: Nere
- 507 Insufficient Storage The server has no room to store what the request needs. Monitor: Nere
- 508 Loop Detected The server found an infinite loop while processing the request. Monitor: Nere
- 510 Not Extended Obsolete An obsolete code from the HTTP extension framework. Monitor: Nere
- 511 Network Authentication Required The network needs you to sign in before you get access. Monitor: Nere
- 520 Web Server Returned an Unknown Error Icke-standard · Cloudflare Cloudflare got an empty or unexpected response from the origin server. Monitor: Nere
- 521 Web Server Is Down Icke-standard · Cloudflare The origin server refused Cloudflare’s connection. Monitor: Nere
- 522 Connection Timed Out Icke-standard · Cloudflare Cloudflare couldn’t connect to the origin server in time. Monitor: Nere
- 523 Origin Is Unreachable Icke-standard · Cloudflare Cloudflare can’t reach the origin server at all. Monitor: Nere
- 524 A Timeout Occurred Icke-standard · Cloudflare The origin server accepted the connection but answered too slowly. Monitor: Nere
- 525 SSL Handshake Failed Icke-standard · Cloudflare The TLS handshake between Cloudflare and the origin failed. Monitor: Nere
- 526 Invalid SSL Certificate Icke-standard · Cloudflare Cloudflare couldn’t validate the origin server’s certificate. Monitor: Nere
Kontrollera vad din sajt returnerar
Den kostnadsfria webbplatskontrollen anropar valfri URL från Stockholm och visar statuskoden den svarar med, varje omdirigering på vägen, svarstiden och när certifikatet går ut.
Kontrollera en webbplatsVilka koder ska en monitor larma på?
Statuskoderna som spelar roll för upptiden, vilka som betyder verkliga problem och hur du sätter upp kontroller som inte larmar i onödan.
Läs fusklappenFrågor
Vad betyder de fem klasserna av statuskoder?
Den första siffran anger klassen: 1xx information (anropet pågår), 2xx lyckat, 3xx omdirigering, 4xx klientfel (servern avvisar anropet som det skickades) och 5xx serverfel. En klient som inte känner till en kod behandlar den som klassens x00-kod, så en okänd 4xx hanteras som 400.
Vilka statuskoder räknar Uptimecheck som nere?
Som standard räknar en HTTP-övervakning 200–399 som uppe och allt annat som nere, och en driftstörning rapporteras först när en andra kontroll bekräftar den. Omdirigeringar följs, upp till 10, och det slutliga svaret avgör. Du kan ange förväntade statuskoder för varje övervakning, till exempel 200-299, 401. Den kostnadsfria Is it down?-kontrollen räknar alla svar under 500 som att sajten svarar.
Vad är skillnaden mellan 502, 503 och 504?
Alla tre kommer oftast från en proxy eller lastbalanserare framför applikationen. 502 Bad Gateway: servern bakom gav ett ogiltigt svar eller inget alls, ofta för att den har kraschat. 503 Service Unavailable: servern är överbelastad eller under underhåll och säger det. 504 Gateway Timeout: servern bakom svarade inte i tid.
Är Cloudflares 52x-koder och nginx 444 och 499 standard?
Nej. Cloudflare skickar 520–526 för att beskriva problem mellan sitt nätverk och ursprungsservern, och nginx använder 444 (stäng anslutningen utan att svara) och 499 (klienten lade på) i sina egna loggar. De finns inte i någon RFC och är därför märkta som icke-standard här.
Låt Uptimecheck fortsätta hålla koll
Det här kostnadsfria verktyget besvarar en fråga i taget. I Uptimecheck sköts samma arbete av sig självt och du larmas när något behöver åtgärdas.
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Alla verktyg- Redirect-kontroll Ange en URL för att se varje omdirigeringssteg med statuskod, var den hamnar och om HTTP går till HTTPS, kontrollerat live från Stockholm. Öppna verktyget
- Är det nere? Kontrollera om en webbplats svarar, hur snabbt och när certifikatet går ut. Öppna verktyget
- Kontroll av SSL-certifikat Se om en sajts certifikat är giltigt, när det går ut, vem som utfärdat det, vilka namn det täcker och hela kedjan, kontrollerat från Stockholm. Öppna verktyget
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