HTTP Error Codes

What is HTTP Error

HTTP means Hyper Text Transfer Protocol, which is an application protocol for collaborative, distributed and hypermedia information system. In simple language we can say that HTTP runs the internet swiftly. Now if we look upon the internet part we don’t have to elaborate this much, living in 21st century the word internet is self explanatory. Whenever there is a technology there can be glitches also. So dealing with that we often come across some messages from our browser interrupting the information we want to see. This type of message is called HTTP error codes. There are plenty of HTTP error codes; here we are giving some of that.

HTTP Error 500 – Internal Server Error

Sometimes we see the message “HTTP 500 Internal server error”. This message means that the server is aware of the problem but it can’t specify about it.

http 500 error message 1 HTTP Error Codes

Problems

The problems we can face for this error are quite simple like we can’t see the web page we are trying to or/ and we can’t download the file we want to.

Solutions

As the problem is from the server and server is also not specific about the problem so the solutions are also narrowed down.

  1. First thing first we can do is to press ‘F5’ button i.e. to refresh the page. Sometimes the problem may be temporary, so refreshing the page can solve it.
  2. If the above solution doesn’t work at all, what we can do is to visit the web page later. Maybe the owner of the site can fix the problem later or the server resolves the problem.
  3. If still the problem persists, we can inform the web master about it. Generally the email ID of web master is webmaster@example.com; replace example.com by the site address.

HTTP Error 403

Sometimes we see the message “HTTP Error 403 – Forbidden”. It means that the information or data stream sent by web client i.e. our browser is correct but the web server denies the access as the information we are trying to see is forbidden for some reason.

http error 403 forbidden 2 HTTP Error Codes

Problems

The problem is pretty simple, the page or file we want to access is forbidden to view .i.e. we can’t see it.

Solutions

The message itself conveys that we are trying to see some information that is forbidden to view, so the solutions to this is also quite small.

  1. First of all we have to check the URL, when we are accessing any file from the directory ending with a ‘\’ in the address bar instead of .htm, .asp etc. there are the possibilities to see this message. So we have to check that.
  2. Sometimes the information is secured by the web site owner. In this context we can see the 401- Not Authorized message but sometimes we can see the “HTTP Error 403 – Forbidden” message also.
  3. Sometimes it can happen that the web site is closed so accessing the site can give us such message.
  4. If still the problem persists, the last thing we can do is to inform the web master about it. Generally the email ID of web master is webmaster@example.com; replace example.com by the site address.

HTTP Error 503

In this error we see many types of messages like “503 Service Temporarily Unavailable” or “503 Service Unavailable” and many others. This is because the web server is temporarily unavailable as the server is too busy or any maintenance work is going on the server.

http error 503 3 HTTP Error Codes

Problems

As the server is busy or in maintenance the web site or web page can’t be seen.

Solutions

The problem is associated with server side so the solution is not so useful from the client (user) side. Still there are some measures to be taken by which we can resolve the problem.

  1. First of all we can press ‘F5’ button i.e. to refresh the web page.
  2. We can visit the site later as the problem can be resolved by that time.
  3. Restarting our Router and computer can also fix the problem. As sometimes we see the message “Service Unavailable – DNS Failure”, so Router may have the problem.
  4. Last but not the least we can inform the web master about it. Generally the email ID of web master is webmaster@example.com; replace example.com by the site address.

HTTP Error 400

When we see the message “400: Bad Request” or “HTTP Error 400 – Bad Request”, it is evident that the request sent by the client (web browser) to load a web page is ‘malformed’ and the server is unable to process the request.

http error 400 4 HTTP Error Codes

Problems

As the request is not understood by the server, the web page we are trying to see can’t be seen.

Solutions

The solution to this problem is quite limited.

  1. The most common mistake we do is the wrong URL. So first of all we should check the URL whether it is right or not.
  2. Finally we can inform the web master about it. Generally the email ID of web master is webmaster@example.com; replace example.com by the site address.

HTTP Error 404

This is one of the most common error messages we see like “HTTP 404 Not Found”. This is because of the client request is correct but the server is unable to process the request as likely ‘return to sender – address unknown’ response to the conventional mail service.

http error 404 5 HTTP Error Codes

Problems

As the request is understood by the server but, the web page we are trying to see can’t be seen.

Solutions

The solutions to this problem are:

  1. For top level URLs the page request is valid but the web server may not have the web page or the DNS entries may be corrupt or damaged.
  2. For low level URLs the address may be a broken link. So fixing the broken link can resolve the problem.
  3. Another possibility is that the website may be moved to a different address and trying to access the website’s pages can bring the error message.
  4. Last of all we can inform the web master about it. Generally the email ID of web master is webmaster@example.com; replace example.com by the site address.

HTTP Error 504

Sometimes we see the message “HTTP Error 504 – Gateway Timeout” or any similar kind. This type of error message means that the server failed to receive a timely response from the upstream server. This indicates that the upstream server is not working or may be down.

http error 504 6 HTTP Error Codes

Problems

As the server is down or out of service the web site or web page can’t be seen.

Solutions

The solutions to this problem are not dependent on the client computer but still some steps we can take that are:

  1. First of all we can do is to press ‘F5’ button i.e. to refresh the web page.
  2. We can visit the site later as the problem may be resolved by that time.
  3. Last of all we can inform the web master about it. Generally the email ID of web master is webmaster@example.com; replace example.com by the site address.

HTTP Error 401

If we see “401 Authorization Required” message in our web browser that means we first have to login i.e. have to give user ID and password to access the specific web page. If we already gave the credentials and still after that it shows the message, it means we have given wrong credentials.

http error 401 7 HTTP Error Codes

Problems

When we encounter HTTP 401 Error, we can’t see the specific web page. If we are looking for a file to be downloaded then it can’t be downloaded until the problem is resolved.

Solutions

  1. First of all we have to check whether the URL is correct or not. If the URL is wrong then we have to type the correct URL and try again.
  2. In this context if we are authorized to see the page then we have to find the login area and have to give correct credentials.
  3. If the site we are visiting doesn’t require any authorization and still it’s showing the message then there must be some mistakes. In this situation we should contact the web master of that site. Generally the email ID of web master is webmaster@example.com (here replace example.com with the specific web site name).

HTTP Error 302

The error message “HTTP Error 302 – Moved temporarily” means that the URL is temporarily moved to another location rather can say that it is has been moved to another URL.

http error 302 8 HTTP Error Codes

Problems

As the URL is moved to another URL so the web page we are trying can’t be viewed.

Solutions

  1. When a URL is moved to another location it generally redirects to that location such as URL A is redirected to URL B. As we can see URL B is also redirected to URL A. So the redirection is most important. If the problem occurs that means that it has a problem in the redirection chain.
  2. Finally we can do is to inform the web master about it. Generally the email ID of web master is webmaster@example.com; replace example.com by the site address.

HTTP Error 200

Talking about HTTP Error 200 it is kind of rare error message. It means that the request is received by the server but it can’t deliver the request due to some PHP error in the site.

Problems

The problem is usually that we can’t access the website.

Solutions

  1. First of all we can press ‘F5’ button i.e. to refresh the web page.
  2. If the browser memory is full we can see the error message. So we have to clear the browser memory.
  3.  We have to reconnect to the Internet. This issue can occur when we are running into a poor internet connection.
  4. If we are using a modem, disconnect from our ISP and reconnect.

This article was last updated on May 29th, 2012 in Help

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