According to Google, I will discuss the top 5 errors here. The five most common http errors are;
1. HTPP Error 401 (Unauthorized)
This type of error occurred when a website visitor tries to reach a restricted web page but is not authorized to do so, usually due to a failed login attempt.
2. HTTP Error 400 (Bad Request)
400 is basically an error message from the web server that tells you that the application you are using (e.g., your web browser) has misplaced it or the request has been corrupted in some way.
3. HTTP Error 403 (Forbidden)
This error is similar to Error 401, but notice the difference between the unauthorized and banned. No entry opportunity was available in this case. For example, if you try to access a (prohibited) directory on a website
Open example sitesbay.com/.htaccess This shows a 403 error because the .htaccess file on my server is not accessible by other people
4. HTTP Error 404 (Not Found)
Most people are forced to recognize this 404 error occurs when you try to access a resource on a web server (usually a web page) that does not exist. For some reason, for example, a broken link, incorrect type URL or webmaster has moved the requested page somewhere (or it has been removed). In order to combat the broken effects of broken links, some websites set a custom page for them (and some of them are really cool).
Open example sitesbay.com/wed this shows a 404 error because the wed file is not available on the server
5. HTTP Error 500 (Internal Server Error)
The details of this error say too much This is a general purpose error message when a web server encounters an internal error, for example, the web server may be overloaded and therefore unable to properly manage the requests.