400 Bad Request -- Server doesn't recognize the URL. Double check to see that you've typed it correctly. Usually there's no colon after the "http" or only one slash after it, things like that.

---

403 Forbidden Pages -- You're not being allowed access, for whatever reason.

---

404 Not Found -- It could be that the page you're searching for has been deleted, or its name has been changed or modified on the server. You can try deleting portions of the URL, starting at the end, and see what comes up.

File Contains No Data -- There are many reasons you could get this, including the fact that there's nothing there. Try again later.

Failed DNS Lookup -- This could mean that you've incorrectly typed the URL or that the server you're trying to reach is down or too busy. Check the URL and try again!

---

503 Service Unavailable -- Similar to the message above. The page is there, but isn't accessible at the moment. Hitting Reload or Refresh a few times may solve the problem.