httpstatus.vim is vim plugin to see description of http status(es)
Install with NeoBundle
NeoBundle 'zakuro9715/httpstatus.vim'
See description of a http status:
:HttpStatus 200
200 OK | Request fulfilled, document follows
And, you can ommit end of digits.
:HttpStatus 40
400 ...
401 ...
...
409
:Http 4
400 ...
401 ...
...
417 ...