One common misconception is that it's an SEO best practice to simply 301 redirect pages that return a 404 status code to the homepage of the given domain. This. The 301 HTTP Status Code response means that the resources have moved permanently. The 301 HTTP Status Code indicated resource has been. moz.com › SEO Learning Center.
watch the thematic videoHTTP Status Code 302: What Is a 302 Redirect?
HTTP Status 301 is one of the redirection related statuses, which indicates that the resource requested has been permanently moved to the URL given by the header. And all the future requests should use the new URI.
Redirection is the process of forwarding the request from one URL to a different URL. The specification for Status 301 requires the request http status error 301 (and the request body) not to be altered when the redirection is performed.
It is recommended to use HTTP 301 only for GET or HEAD methods.
1. Why a URL needs to move permanently?
Generally, changing the URLs of resources is not advisable. Still, we can come across unavoidable situations where we must be making the changes to the URL of a resource.
A few such examples can be:
- Moving the resource from HTTP to HTTPs protocol
- Resource has been discountinued and alternate resource is available in new URL
2, http status error 301. Location Header
The server SHOULD generate a header field in the response containing the new location of the resource.
2.1. Client request
2.2. Server response
A 301 response is cacheable by default; i.e., unless otherwise indicated by the method definition or explicit cache controls.
Refer to these cache headers for more information.
4. Response Handling
- If a client has link-editing capabilities, it should update all references to the requested URL with the new URL.
- Search engines (Google and Bing) replace the old URL in the search results, and the old URL will eventually disappear. Link juice will pass from the old URL to the new URL.
- The browsers will automatically detect the 301 response code after that it will read the new location URL and redirect the request to that new location.
Reference : RFC 7231
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A 301 Moved Permanently is an indicating that the requested resource has been permanently moved to a new URL provided by the response header. The category of response codes are used to indicate redirection messages to the client, such that the client will become aware that a redirection to a different resource or URL should take place.
It can be a challenge to differentiate between all the possible HTTP response codes and determine the exact cause of a message like the code. There are dozens of possible HTTP status codes used to represent the complex relationship between the client, a web application, a web server, and often multiple third-party web services, so determining the cause of a particular status code can be difficult. In this article we'll examine the code by looking at a few troubleshooting tips, along with some potential fixes for common problems that might be causing this issue, http status error 301, so let's get started!
The Problem is Server-Side
All HTTP response status codes that are in the category are considered. Such codes indicate to the user agent (i.e. your web browser) that an additional action is required in order to complete the request and access the desired resource. Unlike gateway related response codes, like the we've looked at recently, which may indicate issues either on an upstream server or the client, the code generally indicates an issue on the actual web server hosting your application.
That said, the appearance of a is usually not something that requires much user intervention. Most browsers should automatically detect the response code and process the redirection action automatically, http status error 301. System error failed of lock web server hosting the application should typically include a special header as part of the response it sends to the client. This header indicates the new URL where the requested resource can be found. For example, if a request comes in to access the URLbut the web server is configured to forces redirection to a secure version usingthe server response will include the header. This tells the browser that it should redirect this request (as well as all future ones) to to the secured URL of. In most cases, the browser will automatically detect this response code, read the new URL, and redirect the request to that new location. It is considered best practice to use a redirection to transition a user agent from HTTP to the secure HTTPS. Thus, if you attempt to go to the insecure URL of https://airbrake.io right now, you'll automatically be redirected to the HTTPS version of the site (https://airbrake.io).
All of that said, if your application http status error 301 generating codes improperly or unexpectedly, there are a number of steps you can take to diagnose the problem.
Start With a Thorough Application Backup
As with anything, it's better to have played it safe at the start than to screw something up and come to regret it later on down the road. As such, it is critical that you perform a full backup of your application, database, and so forth, before attempting any fixes or changes to the system. Even better, if you have the capability, create a complete copy of the application onto a secondary server that isn't "live," or isn't otherwise active and available to the public. This will give you a clean testing ground with which to test all potential fixes to resolve the issue, without threatening the security or sanctity of your live application.
Diagnosing a 301 Moved Permanently Response Code
A response code indicates that the server believes that the requested resource is invalid and that the request should be redirected to a new, "proper" URL. I use the word here because it's entirely possible that the server is misconfigured or bugged in some way, which is causing it to provide codes for resources/URLs that are winapi com port error_io_pending valid. Thus, a large part of diagnosing the issue will be going through the process of double-checking what resources/URLs are generating response codes and determining if these codes are appropriate or not.
That said, if your application is responding with codes that it should not be issuing, this is an issue that many other visitors may be experiencing as well, dramatically hindering your application's ability to service users, http status error 301. We'll go over some troubleshooting tips and tricks to help you try to resolve this issue. If nothing here works, don't forget that Google is your friend. Don't be afraid to search for specific terms related to your issue, such as the name of your application's CMS or web server software, along with. Chances are you'll find others who have experienced this issue and have come across a solution.
Troubleshooting on the Server-Side
Here are some additional tips to help you troubleshoot what might be causing the to appear on the server-side of things:
- - Your application is likely running on a server that is using one of the two most popular web server softwares, or. At the time of publication, both of these web servers make up of the world's web server software! Thus, one of the first steps you can take to determine what might be causing these response codes is to check the configuration files for your web server software for unintentional redirect instructions.
To determine which web server your application is using you'll want to look for a key file. If your web server is Apache then look for an file within the root directory of your website file system. For example, if your application is on a shared host you'll this is terror 8 homely have a username associated with the account on that host. In such a case, the application root directory is likely something likeso the file would be at .
If you located the file then open it in a text editor and look for lines that use directives, which are part of the module in Apache. Covering exactly how these time in mysql #1146 error work is well beyond the scope of this article, however, http status error 301, the basic concept is that a directive defines a text-based pattern that will be matched against entered URLs. If a matching URL is requested by a visitor to the site, the directive that follows one or more directives is used to http status error 301 the hp procurve total rx errors redirection of the request to the appropriate URL. Therefore, if you find any strange or directives in the file that don't seem to belong, try temporarily commenting them out (using the character prefix) and restarting your web server to see if this resolves the issue.
On the other hand, if your server is running onyou'll need to look for a completely different configuration file. By default this file is named and is located in one of a few common directories:, or. Once located, open in a text editor and look for the or directives. Http status error 301 example, here is a simple (i.e. a named set of directives) that configures a virtual server by creating a redirection from to the proper URL:
directives in are similar to the and directives found inas they tend to contain more complex text-based patterns for searching. Either way, look through your file for any abnormal or directives and comment them out before restarting the server to see if the issue was resolved.
- - Nearly every web application will keep some form of server-side logs. are typically the history of what the application did, such as which pages were requested, which servers it connected to, which database results it provides, and so forth. are related to the actual hardware that is running the application, and will often provide details about the health and status of all connected services, or even just the server itself. Google "logs [PLATFORM_NAME]" if you're using a CMS, or "logs [PROGRAMMING_LANGUAGE]" and "logs [OPERATING_SYSTEM]" if you're running a custom application, to get more information on finding the logs in question.
- - If all else fails, it may be that a problem in some custom code within your application is causing the issue. Try to diagnose where the issue may be coming from through manually debugging your application, along with parsing through application and server logs. Ideally, make a copy of the entire application to a local development machine and perform a step-by-step debug process, which will allow you to recreate the exact scenario in which the occurred and view the application code at the moment something goes wrong.
No matter what the cause, http status error 301, the appearance of a within your own web application is a strong indication that you may need an error management tool to help you automatically detect such errors in the future. The best of these tools can even alert you and your team immediately when an error occurs. Airbrake's error monitoring software provides real-time error monitoring and automatic exception reporting for all your development projects. Airbrake's state of the art web dashboard ensures you receive round-the-clock status updates on your application's health and error rates. No matter what you're working on, Airbrake easily integrates with all the most popular languages and frameworks. Plus, Airbrake makes it easy to customize exception parameters, while giving you complete control of the active error filter system, so you only gather the errors that matter most.
Check out Airbrake's error monitoring software today and see for yourself why so many of the world's best engineering teams use Airbrake to revolutionize their exception handling practices!
HTTP response status code
The HTTP response status code 301 Moved Permanently is used for permanent redirecting, meaning that links or records returning this response should be updated. The new URL should be provided in the Location field, included error local server the response. The 301 redirect is considered a best practice for upgrading users from HTTP to HTTPS.
RFC 2616 states that:
- If a client has link-editing capabilities, it should update all references to the Request URL.
- The response is cacheable unless indicated otherwise.
- Unless the request method was HEAD, http status error 301, the entity should contain a small hypertext note with a hyperlink to the new URL(s).
- If the 301 status code is received in response to a request of any type other than GET or HEAD, the client must ask the user before redirecting.
Using an .htaccess file
To fix problems with non-existing files or directories using a distributed .htaccess file:
Here is an example using a .htaccess file to redirect a non-secure URL to a secure address without the leading "www":
A custom directory redirect, using an index.html file:
Using programming languages
Here is an example using PerlCGI.pm:
Here is an example using a PHP redirect:
Here is one way to redirect using Express.js:
Equivalently simple for an nginx configuration:
Both Bing and Google recommend using a 301 redirect to change the URL of a page as it is shown in search engine results, providing that URL will permanently change and is not due to be changed morelocale 2 parse error any time soon.
HTTP 300 Status Codes
The AT&T Video Optimizer tool specifically identifies the HTTP 301 and 302 Status Codes that are found in an application trace. These two codes are an important part of application analysis, because they indicate a redirection response from the server that will lead to some additional overhead for the application.
This Best Practice Deep Dive provides some background on the 3xx class of HTTP Status Codes, describes the issues raised by the 301 and 302 Status Codes, and recommends possible resolutions for these issues.
The term "HTTP Status Code" is often used interchangeably with the term "HTTP Status Line" but they are slightly different. The HTTP Status Line is more complete, being comprised of two parts: (1) the HTTP Status Code (i.e.404) and the HTTP Reason Phrase (i.e. requested page doesn't exist).
The 3xx class of HTTP Status Codes indicates that further action needs to be taken by the user agent in order to fulfill a http status error 301. The required action may be carried out by the user agent without interaction with the user, if and only if, the method used in the second request is GET 3 main types of terrorism HEAD. A client should make an effort to detect infinite redirection loops, since such loops generate network traffic for each cpu for error the full listing of all HTTP Status Codes, refer to either the IANA or the W3C.
One appearance of an HTTP 301 or 302 Status Code in an application trace results in a failure of the "301, 302 HTTP Status Response Codes" Best Practices test in AT&T Video Optimizer.
Failing this test does not necessarily mean that there is something for the developer to act upon. The results are meant to bring awareness that redirects add overhead to an app, and that it is up to the developer to review each issue, determine whether it can be addressed, and take action where possible.
Best Practice Recommendation
The Best Practice Recommendation for HTTP 301 and 302 Status Codes is to review each occurrence of these codes in an HTTP response and take action where needed. The following describes these two Status Codes http status error 301 more detail, and discusses some possible actions.
Receiving an HTTP 301 Status Code
An HTTP 301 Status Code indicates that the resource the client requested has permanently moved to a new location. Samsung clp-310 spl-c error HTTP response containing this code should also include the new location, and the client should use this new URL the next time it tries to fetch the same resource.
When an HTTP 301 Status Code occurs, http status error 301, a client should update all references to the Request URL if it has the capability to do so. The HTTP response containing the code is cacheable, and unless the request method was HEAD, the entity should contain a small hypertext note with a hyperlink to the new URL(s). If the 301 Status Code is received in a response to a request of any type other than GET or HEAD, the client must ask the user before redirecting to the new URL.
If the Web server does not return an alternative URL in the response with the 301 Status Code, then either the Web server software itself is defective or the server has not been set up to correctly to handle the URL redirection.
Receiving an HTTP 302 Status Code
An HTTP 302 Status Code indicates that the resource the client requested has temporarily moved to a new location. The response should also include this location. This code indicates to the client that it should carry on using the same URL to access this resource.
The HTTP 302 Status Code is the most common way of performing a redirection. It is an example of industry practice contradicting the standard HTTP/1.0 specification, which required the client to perform a temporary redirect. The describing phrase was "Moved Temporarily", http status error 301, but web browsers implemented it as a 303 Status Code "See Other" by changing the request type to GET regardless of what it had been originally.
If the 302 Status Code is received in response to a request other than GET or HEAD, the user agent must not automatically redirect the http status error 301 unless it can be confirmed by the user, since this might change the conditions under which the request was issued.
The following describes the 3xx class of HTTP Status Codes.
300 Multiple Choices
This Status Http status error 301 indicates that the request has more than one possible response. The user agent or user should choose one of them. There is no standardized way to choose one of the responses.
301 Moved Permanently
This Status Code indicates that the URI of the requested resource has been changed, http status error 301. Typically, a new URI should be given in the response.
This Status Code indicates that the URI of the requested resource has been changed temporarily. New changes in the URI might be made in the future. Therefore, this same URI should be used by the client in future requests.
303 See Other
This Status Code indicates that the server sent this response to direct the client to get the requested resource to another URI with a Cant install driver error 1275 request.
304 Not Modified
This Status Code is used for caching purposes. It indicates to the client that the response has not been modified, so the client can continue to use the same cached version of the response.
305 Use Proxy
This Status Code indicates that the requested response must be accessed by a proxy. This response code is not largely supported for security reasons.
This Status Code is no longer used.
307 Temporary Redirect
This Status Code indicates that the requested resource is temporarily located at another URI. The client should request the resource again by using the temporary URI provided in the Location field of the response. The second request must use the same method as the original request. This has the same semantic as the HTTP 302 "Found" Status Code, with the exception that the user agent must not change the HTTP method used. For example, if a POST was used in the first request, a POST must be used in the second request.
308 Permanent Redirect
This Status Code indicates that the requested resource is now permanently located at another URI, http status error 301, specified by the Location: HTTP Response header. This has http status error 301 same semantics as the HTTP 301 "Moved Permanently" Status Code, with the exception that the user agent must not change the HTTP method used. For example, if a POST was http status error 301 in the first request, a POST must be used in the second request.
301 MOVED PERMANENTLY
The target resource has been assigned a new permanent URI and any future references to this resource ought to use one of the enclosed URIs.
Clients with link-editing capabilities ought to automatically re-link references to the effective request URI to one or http status error 301 of the new references sent by the server, where possible.
The server SHOULD generate a Location header field in the response containing a preferred URI reference for the new permanent URI. The user agent MAY use the Location field value for automatic redirection. The server’s response payload usually contains a short hypertext note with a hyperlink to the new URI(s).
Note: For historical reasons, a user agent MAY change the request method from POST to GET for the subsequent request. If this behavior is undesired, the 307 Temporary Redirect status code can be used instead.
A 301 response is cacheable by default; i.e., unless otherwise indicated by the method definition or explicit cache controls.
Calculating Heuristic Freshness RFC7234 Section 4.2.2
301 MOVED PERMANENTLY Source: RFC7231 Section 6.4.2
Rails Http status error 301 Status Symbol
Go HTTP Status Constant
Symfony HTTP Status Constant
Python2 HTTP Status Constant
Python3+ HTTP Status Constant
Python3.5+ HTTP Status Constant