Web Page Errors While Browsing Internet

Below are some web page errors you may came/come across while browsing internet. The error ranges are many but below are the ones which will occur mostly.

Error 400 - Bad request error
Error 401 - unauthorized request error
Error 403 - forbidden error
Error 404 - Not found error
Error 500 -Internal error error
Error 501 - Not Implemented error
Error 502 - Bad Gateway error
Error 503 -Service unavailable error
Error 504 - Gateway Time-Out error
Error 505 - HTTP Version not supported/DNS Lookup Fail/unknwn host error
Error 500 to 599 - Server errors