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HTTP Status Codes Flashcards

HTTP status codes with reason phrase and meaning, taken from RFC 9110 — the current specification — plus the well-known codes defined in other RFCs.

Free to play in your browser — no account, no install. The first 30 cards are free forever. The deck opens with 1xx, 2xx, 3xx and 4xx and runs to 35 cards in all.

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HTTP Status Codes flashcards — the free 30

Every question and answer on the free cards, written out. Check them against your own textbook before you spend anything.

1xx
Informational — an interim response; the one final response is still to come
2xx
Successful — the request was received, understood and accepted
3xx
Redirection — the user agent has to take further action to fulfil the request
4xx
Client Error — the client seems to have erred
5xx
Server Error — the server erred, or cannot perform the request
100
Continue — the start of the request has been received and not rejected; send the rest
101
Switching Protocols — the server agrees to the protocol change asked for in Upgrade
103
Early Hints — header fields the final response is likely to carry, sent ahead of it (RFC 8297)
200
OK — the request succeeded
201
Created — the request succeeded and created one or more new resources
204
No Content — succeeded, and there is deliberately no content in the response
206
Partial Content — a range request answered with part of the representation
301
Moved Permanently — the resource has a new permanent URI; links should be updated
302
Found — the resource is temporarily at another URI; keep using the original
303
See Other — fetch the answer from the Location URI with a GET
304
Not Modified — the client's cached copy is still valid, so no content is sent
307
Temporary Redirect — like 302, but the client must not change the request method
308
Permanent Redirect — like 301, but the client must not change the request method
400
Bad Request — the server won't process it: malformed syntax, framing or routing
401
Unauthorized — no valid credentials; the reply must carry a WWW-Authenticate challenge
403
Forbidden — the server understood the request and refuses to fulfil it
404
Not Found — no current representation, or the server won't admit one exists
405
Method Not Allowed — the method is known but not supported on this resource
408
Request Timeout — no complete request arrived within the time the server would wait
410
Gone — removed and likely permanently; use 404 when the server cannot tell
413
Content Too Large — request content beyond what the server will process; was 'Payload Too Large'
415
Unsupported Media Type — the content is in a format this resource will not accept
418
(Unused) — reserved because of RFC 2324, an April Fools' joke; not a code to use
429
Too Many Requests — the client has been rate-limited (RFC 6585)
451
Unavailable For Legal Reasons — access denied because of a legal demand (RFC 7725)

HTTP Status Codes flashcards — questions people ask

How many cards are in the HTTP Status Codes flashcard deck?
The HTTP Status Codes deck on PuzzlePage has 35 cards. The first 30 are free to play and free to download with no account; the remaining 5 unlock for $2.99 as a one-time payment, or with the $11.99-a-month Study Pack, which covers every deck on the site. 35 cards — the five classes plus the codes a working developer meets. The IANA registry holds around sixty codes; the WebDAV-only and near-unused ones are left out rather than padded in.
What is on the http status codes flashcards?
HTTP status codes with reason phrase and meaning, taken from RFC 9110 — the current specification — plus the well-known codes defined in other RFCs. Cards look like this: 1xx → Informational — an interim response; the one final response is still to come; 2xx → Successful — the request was received, understood and accepted. The deck is written for grades 9–12 and filed under career, tech & modern.
Can I study http status codes flashcards online for free?
Yes. The first 30 cards of the HTTP Status Codes deck play free in any web browser at puzzlepage.app, with no account, no app and no card details. It works on a phone, tablet, Chromebook, laptop or classroom projector. Practice mode flips through the cards with nothing scored; quiz mode makes you answer each card before it flips, times the run and scores it.
Are the http status codes flashcards accurate?
Every card in the HTTP Status Codes deck cites two independent published sources — two different organisations, not a standards body and a site reprinting it — and a script checks that, rather than taking the writer's word for it. A second specialist then re-verified the deck against sources of their own, without reading the citations first. That is the difference from a user-generated flashcard site, where the cards are whatever a stranger typed and nobody is accountable for them.
Can I print the http status codes flashcards?
Yes. The HTTP Status Codes cards are available as a printable double-sided PDF to cut up, as well as playable in the browser. The first 30 cards are free to download; the full 35-card printable is included in the $11.99-a-month Study Pack.
How should I use the HTTP Status Codes deck to revise?
Start in practice mode and go through the HTTP Status Codes deck once without scoring, to find out which cards you already know — the deck is dealt in a different order every time you open it, so you are recalling the card rather than its position. Then switch to quiz mode, which times and scores the run and lets you re-run only the cards you missed. Use the "flip deck" control to swap which side is the question: recognising an answer is much easier than producing one, so a deck you find easy one way round is usually the harder and more useful drill the other way. Two or three short sessions across a week beat one long one, which is the whole reason flashcards work.
What grade level are the http status codes flashcards for?
The HTTP Status Codes deck is written for grades 9–12. Because the cards are plain term-and-answer pairs, they are also used outside that band — by adults revising career, tech & modern, and by teachers running them as a whole-class starter on a projector.

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