Meaning of HTTP Status Codes

HTTP, Hypertext Transfer Protocol, is the
method by
which clients (i.e. you) and servers
communicate.
When someone clicks a link, types in a URL
or submits
out a form, their browser sends a request to
a server
for information. It might be asking for a
page, or
sending data, but either way, that is called
an HTTP
Request. When a server receives that request,
it sends
back an HTTP Response, with information for
the
client.
Usually, this is invisible, though I'm sure
you've seen
one of the very common Response codes -
404,
indicating a page was not found. There are a
fair few
more status codes sent by servers, and the
following
is a list of the current ones in HTTP 1.1,
along with an
explanation of their meanings.