{"id":16136,"date":"2025-07-24T18:25:33","date_gmt":"2025-07-24T16:25:33","guid":{"rendered":"https:\/\/surver.nl\/?post_type=kennisbank&p=16136"},"modified":"2025-08-21T12:28:13","modified_gmt":"2025-08-21T10:28:13","slug":"status-code-418","status":"publish","type":"kennisbank","link":"https:\/\/surver.nl\/en\/kennisbank\/statuscode-418\/","title":{"rendered":"What does status code 418 I'm a teapot mean?"},"content":{"rendered":"
\"418<\/figure>\n\n\n\n

You make a request to a server. Everything seems technically correct, but you get an unexpected response back: 418 I'm a teapot.<\/p>\n\n\n\n

Wait ... what?<\/p>\n\n\n\n

The 418 status code is no ordinary error message. It is a joke, but one that does form an official part of the HTTP protocol. It is included in RFC 2324, the so-called Hyper Text Coffee Pot Control Protocol (HTCPCP), and intended as an easter egg.<\/p>\n\n\n\n

What does the 418 status code really do?<\/h2>\n\n\n\n

Technically, the 418 status code means, \"I'm a teapot, and I refuse to make coffee.\" It's a response code designed specifically not to be taken seriously. And yet you occasionally see it pop up in APIs, as an easter egg, as a test, or as a nod to developers.<\/p>\n\n\n\n

The RFC literally states:<\/p>\n\n\n\n

418 I'm a teapot<\/em><\/strong><\/p>\n\n\n\n

The HTCPCP server is a teapot. The responding entity MAY be short and stout.<\/p>\n\n\n\n

So the code was never intended for production use, but is now so well known among developers that some systems implement it deliberately, for example, to capture a certain behavior with a wink.<\/p>\n\n\n\n

When will you encounter a 418 status code?<\/h2>\n\n\n\n
\"HTTP<\/figure>\n\n\n\n

Fairly rarely. But it happens.<\/p>\n\n\n\n

    \n
  • Some APIs (especially internal or experimental) use the 418 as a placeholder or humorous response to error requests<\/li>\n\n\n\n
  • In test environments it is sometimes used to check whether clients can properly process unexpected status codes<\/li>\n\n\n\n
  • Frameworks such as Google's serverless functions or libraries like httpbin have included it for demonstration purposes<\/li>\n<\/ul>\n\n\n\n

    So it is not a \"real\" error message like a 404 or 403, but rather an inside joke with its own status code.<\/p>\n\n\n\n

    What can you do when you encounter a 418?<\/h2>\n\n\n\n

    Laughter is an option. But if you are seriously working on an application and you get a 418 status code back when you have nothing set up for it, it is good to check:<\/p>\n\n\n\n

      \n
    • Whether your test environment or mock server happened to activate a joke<\/li>\n\n\n\n
    • Whether you invoke an endpoint equipped with an easter egg by a peer or open source project<\/li>\n\n\n\n
    • Whether the error message is intentionally used as a capture mechanism outside production<\/li>\n<\/ul>\n\n\n\n

      Sometimes the 418 is also used in monitoring or as a recognizable test signal. Precisely because it is so rare, it stands out in logging.<\/p>\n\n\n\n

      In conclusion<\/h2>\n\n\n\n

      The 418 status code is not a server error, not a client error, and not a best practice. It is a joke with its own RFC, and at the same time a symbol of how Internet culture and technology intersect.<\/p>\n\n\n\n

      Come across it? Then it's either intentionally meant to be funny, or a hint that you're working with an environment where not everything is deadly serious.<\/p>\n\n\n\n

      Anyway, now you know what it means: you're talking to a teapot. And it doesn't make coffee.<\/p>","protected":false},"excerpt":{"rendered":"

      Je doet een request naar een server. Alles lijkt technisch correct, maar je krijgt een onverwacht antwoord terug: 418 I’m a teapot. Wacht\u2026 wat? De 418 status code is geen gewone foutmelding. Het is een grap, maar dan eentje die w\u00e9l officieel deel uitmaakt van het HTTP-protocol. Hij is opgenomen in RFC 2324, het zogenaamde […]<\/p>\n","protected":false},"author":2,"featured_media":16368,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"kennisbank_categorieen":[64],"class_list":["post-16136","kennisbank","type-kennisbank","status-publish","has-post-thumbnail","hentry","kennisbank_categorieen-statuscodes"],"acf":[],"_links":{"self":[{"href":"https:\/\/surver.nl\/en\/wp-json\/wp\/v2\/kennisbank\/16136","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/surver.nl\/en\/wp-json\/wp\/v2\/kennisbank"}],"about":[{"href":"https:\/\/surver.nl\/en\/wp-json\/wp\/v2\/types\/kennisbank"}],"author":[{"embeddable":true,"href":"https:\/\/surver.nl\/en\/wp-json\/wp\/v2\/users\/2"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/surver.nl\/en\/wp-json\/wp\/v2\/media\/16368"}],"wp:attachment":[{"href":"https:\/\/surver.nl\/en\/wp-json\/wp\/v2\/media?parent=16136"}],"wp:term":[{"taxonomy":"kennisbank_categorieen","embeddable":true,"href":"https:\/\/surver.nl\/en\/wp-json\/wp\/v2\/kennisbank_categorieen?post=16136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}