You usually came across these errors on daily Internet Surfing...!!!

So this is the time to get the reason behind....!!!
# Error 400 - Bad request.
# Error 401 - unauthorized request.
# Error 403 - forbidden.
# Error 404 - Not found.
# Error 500 -Internal error.
# Error 501 - Not Implemented.
# Error 502 - Bad Gateway.
# Error 503 -Service unavailable.
# Error 504 - Gateway Time-Out
# Error 505 - HTTP Version not supported/DNS Lookup Fail/unknown host.
# Error 500-599 - Server Errors.
Hope next time you'll Remember these...!!!