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It happens to all of us. We're surfing along, and up comes an error (usually 404). What do all those error codes mean? Here's a quick rundown of the most common.

Error numbers and what they mean

400 - Bad Request - You probably typed in a URL wrong, the server has no clue what you're looking for, or you aren't allowed to have access. Usually, it's a matter of the URL being typing in wrong. Maybe you mixed upper and lowercase letters or something.

401- Unauthorized Request - you tried to get to something on the web server you're not allowed to play with. In other words, NOT ALLOWED.

403 - Forbidden - You can't access the page. You may not have access (it may require a password), or it may be blocked from your domain.

404- Not Found - The page you were trying to look at was not found on the server. This is probably the most common error you'll come across. What has probably happened is that the web page you were going to has been removed or re-named, or just not there. Try scaling down the URL. For example, if it's:

you may want to try:


Keep going backwards in the URL and you'll usually come up with the site you're after. Then you can look for the lost page from there.

Another possibility is that your Internet connection has gone dead. Try re-logging on.

500 - Internal error - Usually caused by a CGI error. You fill out a form, but the script used to process it is not working properly.

503 - Service Unavailable - The server may be overloaded, down, or have other similar problems. Try later.

Those are the main ones. You may run across one that isn't listed above on a rare occasion, just know that most of the time, it's not your computer that's the problem, it's their server.


Hope this helps.

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