When you browsing and open the site, sometime there you only see a errors code.
I will give you the kind of these codes and meaning.
- 400 Bad request error, check the URL
- 401 You trying open the unauthorized site, check your username/password
- 402 Payment required error
- 403 You trying open the forbidden site or you are blocked by that domain
- 404 You trying open the site has been removed or renamed
- 408 This the time out error
