Numbers with a little personality
A code. A company.
A good match.
status.forsale brings an HTTP status code reference and a playful advertising idea together. Learn what a code means, find a company that fits it, or try a response in your own app.
How it works.
What is status.forsale?
An independent HTTP status code reference and advertising project. Each code has a page explaining its meaning, plus one space for a company’s advert. It is not affiliated with IANA or the IETF.
Am I buying an HTTP status code?
No. A claim is for advertising space on this website. HTTP standards remain independent; placing an advert does not give a company ownership of a status code or change how it works.
Does the site take real payments?
Yes. A claim opens a secure hosted checkout, and the advert is published only after the payment provider confirms payment. Card details are entered with the payment provider and are not stored by status.forsale.
How do claims and takeovers work?
An available code starts at $10. Each takeover raises the total by $5 in US dollars. A spot stays until another company takes it; there is no guaranteed duration or traffic.
How does previous claim credit count?
Previous confirmed payments count only for the same verified buyer, company domain and code. For example: claim at $10, get overtaken at $15, and reclaim at $20 by paying another $10. Credit is applied only to a future eligible claim and has no cash value.
Do sponsors get equal visibility?
Sponsored cards receive a fresh random order each visit, independent of spend. That gives each spot the same chance of a position; it does not guarantee equal measured impressions or clicks.
Where do the HTTP definitions come from?
The reference summaries are checked against the IANA HTTP status code registry and the RFC linked on each code page. The catalogue covers the 60 codes offered here, rather than every registered or experimental status. Sponsor advertising and company-fit suggestions are separate from the technical definitions.
Sources and accuracy.
The IANA HTTP status code registry identifies registered codes and their specifications. Each of our code pages links to its relevant RFC; those specifications take precedence over our plain-language summaries.
We check definitions and links when the reference is updated. Technical summaries were reviewed on . A new sponsor changes the advert, not the meaning of the code. The playful 418 teapot entry is explicitly distinguished from the registry’s “unused” designation.
Company names, links and advertising claims are supplied by advertisers. They are not technical recommendations or endorsements by the standards bodies.
Using the reference.
The HTTP reference links every code without requiring search or a “load more” button. Each detail page includes the definition, a specification link and the response tester where supported.
For tools and AI assistants, llms.txt provides a short guide and llms-full.txt provides the reference as Markdown. These are generated from the same definitions as the visible pages. Current adverts belong to their code pages and are not frozen into the text guide.