Encountering the ‘414 Request URI Too Long’ error can be frustrating on your WordPress site. Understanding its causes and how to fix it is essential.
The ‘414 Request URI Too Long’ error typically occurs when there is a communication issue between your web browser and the website server. For instance, you might encounter this error after clicking a link or taking an action through a WordPress plugin.
In this article, we will clarify what the ‘414 Request URI Too Long’ error is and provide a step-by-step guide on how to resolve it.
What Is the 414 Request URI Too Long Error?
A ‘414 Request URI Too Long’ error happens when the URL or action you are trying to request exceeds the length that the server can process.
It’s important to understand the distinction between URI and URL. A URI, or Uniform Resource Identifier, can represent a resource’s name, location, or both. Conversely, a URL, or Uniform Resource Locator, exclusively indicates the location of a resource.
Although these terms are often used interchangeably since a URL is a subset of a URI, the 414 error can arise from both components. Let’s explore the causes.
What Causes the 414 Request URI Too Long Error?
When troubleshooting WordPress errors, identifying the root cause is crucial.
The ‘414 Request URI Too Long’ error occurs when you click on a link, and the server cannot process it due to the URL’s excessive length.
A common reason for a lengthy URL is the use of UTM (Urchin Tracking Module) parameters. If you are tracking conversions on your WordPress site with numerous parameters in the URL, this can lead to the error.
Another cause of a 414 error is a redirect loop, which happens when a misconfiguration or a setting in a WordPress plugin results in multiple redirect requests.
This can lead to excessively long URLs and trigger the ‘414 Request URI Too Long’ error.
Certain plugins can also create long URIs as part of their features. You are more likely to encounter this error if you have an all-in-one WordPress security plugin installed on your site.
In rare instances, a developer-related issue can result in a ‘414 Request URI Too Long’ error. This occurs when a POST request inadvertently becomes a GET request, leading to a URL with excessive query data.
Moreover, cyber attacks on your web server can also result in 414 errors.
With this in mind, let’s explore how to resolve the ‘414 Request URI Too Long’ error on your WordPress website.
Resolving the 414 Request URI Too Long Error
One effective solution to resolve this issue is to increase the maximum URI length that your web server can handle.
Before proceeding, it’s advisable to create a backup of your WordPress site. This is important because resolving the 414 error requires modifying configuration files, and having a backup ensures you can restore your site if anything goes wrong.
For further information, please refer to our comprehensive guide on backing up a WordPress site.
Identify Whether Your Website is Running on Apache or Nginx
To begin, you need to determine the type of server that powers your WordPress website. The two primary server types are Apache and Nginx.
A straightforward method to find this out is by opening your website in a web browser. Then, right-click on the homepage and select the ‘Inspect’ option.
Next, navigate to the ‘Network’ tab located at the top of the developer tools.
Here, you can click on any item listed under the ‘Name’ column. Then, scroll down to the ‘Response Headers’ section to view the ‘Server’ information.
This will indicate whether your website is utilizing Nginx or Apache.
If you’re still uncertain about the server type, you can contact your WordPress hosting provider for clarification.
Once you identify your server type, you can begin resolving the ‘414 Request URI Too Long’ error. We will first address this issue for Nginx-based WordPress sites. If you are using Apache, you can skip to the next section.
Resolving the 414 Request URI Too Long Error in Nginx
To start, you will need an FTP (File Transfer Protocol) client to access your website’s configuration files.
There are several FTP clients available. In this tutorial, we will use Filezilla. If you need assistance with setting up FTP and accessing your website files, please refer to our guide on using FTP to upload files to WordPress.
After logging in, you will need to download the nginx.conf file. You can find it by navigating to this path: etcnginxnginx.conf.
Once you have located the file, download it to your computer and open it using a text editor.
Next, search for the large_client_header_buffers 4 8K setting. If it is not present, simply add it to the end of the file.
You will find two sets of values that correspond to a number and size. Change the size from 8K to 128K. This adjustment will increase the URI size limit, allowing the server to process longer URLs.
After completing your changes, save the text file and upload it back to your website using an FTP client.
For step-by-step guidance, refer to our comprehensive tutorial on using FTP to upload files to WordPress.
Resolving the 414 Request URI Too Long Error in Apache
If you’re utilizing an Apache server, the steps are quite similar to those for Nginx. First, you’ll need an FTP client to access your website files.
Once logged in, locate theapache2.conffile. You can find it by navigating to the following path using your FTP client:/etc/apache2/apache2.conf.
Next, download the file and open it with a text editor like Notepad.
Then, search for theLimitRequestLine 128000setting. If it’s not present, feel free to add it at the end of the file.
Typically, ‘LimitRequestLine’ is set to 128000. However, you can increase it to 256000 or more to eliminate the ‘414 Request URI Too Long’ error. Just ensure that the value you choose is a multiple of 2.
After making your changes, upload the file back to your website using the FTP client. This should help fix the 414 error on your WordPress site.
Additional Resources
Now that you understand how to resolve the ‘414 Request URI Too Long’ error, consider exploring other frequent WordPress errors. Being aware of these issues and knowing how to address them can save you time and ensure your website operates smoothly.
Explore our comprehensive guides on:
- Resolving the 500 Internal Server Error in WordPress
- Fixing the 413 Request Entity Too Large Error in WordPress
- How to Resolve the ERR_CONNECTION_REFUSED Error in Chrome
- Fixing the ERR_SSL_VERSION_OR_CIPHER_MISMATCH in WordPress
- Resolving the 403 Forbidden Error in WordPress
- How to Fix the 504 Gateway Timeout Error in WordPress
- Resolving the WordPress Admin Ajax 400 (Bad Request) Error
- Fixing the ‘jQuery is not defined’ Error in WordPress
We hope this article has helped you understand the ‘414 Request URI Too Long’ error and its solutions. You might also want to check our list of the most common WordPress errors and our guide on setting up WordPress error logs in WP-Config.
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