| error.unavail.msg | The server is unavailable due to overload or maintenance. Check back later. |  |  | 
| error.cgi | CGI Error |  |  | 
| error.cgi.msg | Failure during dynamic content generation on the server. This may be due to malfunctioning serverside software. |  |  | 
| error.proxy | Proxy Error |  |  | 
| error.proxy.msg | A proxy request failed because the server was unable to successfully complete a transaction with the remote host. Perhaps there are difficulties with network connectivity. |  |  | 
| error.slowdown | Slow Down |  |  | 
| error.slowdown.msg | The server is rate limiting requests. Please wait… |  |  | 
| error.permanent | Permanent Failure |  |  | 
| error.permanent.msg | Your request has failed and will fail in the future as well if repeated. |  |  | 
| error.notfound | Not Found |  |  | 
| error.notfound.msg | The requested resource could not be found at this time. |  |  | 
| error.gone | Gone |  |  | 
| error.gone.msg | The requested resource is no longer available. |  |  | 
| error.proxyrefusal | Proxy Request Refused |  |  | 
| error.proxyrefusal.msg | The request was for a resource at a domain not served by the server and the server does not accept proxy requests. |  |  | 
| error.badrequest | Bad Request |  |  | 
| error.badrequest.msg | The server did not understand your request. |  |  | 
| error.cert.needed | Certificate Required |  |  | 
| error.cert.needed.msg | Access to the requested resource requires identification via a client certificate. |  |  | 
| error.cert.auth | Certificate Not Authorized |  |  |