[httpstatuses.com][5] is an easy to reference database of HTTP Status Codes with their definitions and helpful code references, each code is at `httpstatuses.com/code`. All standard codes are included, as are some non-standard codes that have significant presence in the wild.
All contributions are welcome! If you have an idea to improve the website please submit a pull request or [create an issue][1], or provide your thoughts on [open issues][1].
Each status code lives in a Markdown file at [contents/codes](contents/codes), the easiest way to submit changes is via the GitHub editor. When contributing changes to the status codes please be mindful of the following:
* If the description references a section in the current RFC, always add the RFC identifier. For example "Section 6.6" should become "RFC1234 Section 6.6"
Previously the project was known as [httpstatus.es][6] but [as per this GitHub issue][7] we migrated to [httpstatuses.com][5] in November 2015 for SEO reasons. The httpstatus.es domain will remain available long term but use of httpstatuses.com is preferred, everything 301's to https://httpstatuses.com. The months following the migration have seen a significant uptake in search engine traffic, if you're running a project on a ccTLD not considered generic by Google and SEO matters it might be worth switching to a generic too.