HTTP 415

« Back to Glossary Index

What is HTTP 415 error?

The HTTP 415 Error, also known as Unsupported Media Type, occurs when the server rejects the received request because the media type is not supported. This means that the server is unable to handle the specified media type or display the requested content.

The media type is usually defined by the Multipurpose Internet Mail Extensions (MIME) type, which specifies how the content is encoded or formatted. The HTTP 415 Error occurs when the server expects the client to use a different media type to make the request.

A HTTP 415 For example, errors can occur when someone tries to upload a file with an unsupported format (such as an unknown video format) to a website or when the client makes a request with an unsupported media type.


Requirement: Response:
POST /upload HTTP/1.1
Content-Type: application/pdf
HTTP/1.1 415 Unsupported Media Type
Content-Type: text/html

Error: 415 Unsupported Media Type

The server does not support the specified media type.

It is important to note that the HTTP 415 error occurs before the server even starts processing the request because the media type is not accepted.

Why does an HTTP 415 error occur?

The HTTP 415 error, also known as "Unsupported Media Type" error, occurs when a server rejects a request because the requested media type is not supported. This means that the server is unable to process the data in the specified format.

There are various reasons why a HTTP 415 error may occur:

  • The server cannot process the requested media type because it does not have the required resources or capabilities.
  • The request contains a media type that is not recognized by the server.
  • The server is configured to accept only certain media types, and the requested file is not in this accepted format.

It is important to note that a HTTP 415 error does not always indicate a problem with the server. Often the error is with the request itself, because the client has made an invalid media type specification.

To make a HTTP 415 error, either the server must be configured to support the requested media type or the client must resend the request with a supported media type.

Why is HTTP 415 error harmful for SEO?

A HTTP 415 error, also known as the "Unsupported Media Type" error, can have a negative impact on the SEORanking of a website. Search engines such as Google evaluate websites according to various criteria to determine their Relevance for certain search queries. A website that frequently HTTP 415 has errors, their Ranking deteriorate in the search results.

The main reasons why a HTTP 415 Error is harmful for SEO are:

  1. Indexing: Search engines use crawlers to index and understand web pages. When a HTTP 415 error occurs, this may result in the crawler not being able to correctly interpret the affected page. This makes it difficult to display this page in the search results.
  2. Linkjuice and Backlinks: A faulty page can lead to a poor user experience and prevent users from staying on the page or linking to it. This results in the loss of important Backlinks and potential linkjuice lost, which the SEO-Ranking could have a positive influence.
  3. Trust and reputation: Websites with many HTTP 415 Errors give the impression of unreliability and inferior quality. This can affect users' trust in the website and its content.

In order to minimize the effects of a HTTP 415 error to SEO, it is important to fix this error as soon as possible. Proper configuration of the media type and optimization of the server settings can reduce many HTTP 415 errors are avoided.

How does HTTP 415 affect the user experience?

A HTTP 415-error can have a negative impact on the user experience. When a user accesses a website and encounters a 415 error, they receive an error message or obstruction notice instead of the expected content. This can cause the user to become frustrated and potentially leave the site to find another source for the information they need.

Users expect websites to function quickly and without errors. When a 415 error occurs, it could give the impression that the website is not well maintained or is of low quality. This can affect users' trust in the website and cause them to avoid the website or rate it poorly.

Identification of the HTTP 415 error

In order to HTTP 415 To identify errors, various methods are available. Both the use of SEO tools and manual error detection methods can be helpful.

When using SEO tools for error detection, special programs or online services can be used. These analyze the website for possible errors and display them in a report. This also includes the HTTP 415 Defects detected and identified.

Another approach to identifying the HTTP 415 error is the manual check. The first thing to check is whether the correct media type configuration is being used. Often the error lies in the fact that the server transmits the wrong media type to the client requests.

To check this, you can optimize the server settings. This includes, for example, adding or changing media types in the server. A correct configuration of the media type is essential to optimize the HTTP 415 Avoid mistakes.

Use of SEO tools for error detection

One of the most important tools for the detection and remediation of HTTP 415 errors are SEO tools. These tools offer a variety of features that can help identify and fix media type configuration errors. Here are some of the ways SEO tools can help with error detection:

  • Monitoring of the HTTPStatus codes: SEO tools can check in real time whether a web page has a HTTP 415 error occurs. This allows website owners to react quickly and fix the error before it negatively impacts user experience and SEO.Ranking effects.
  • Checking the media type header: SEO tools can analyze the media type header of a web page and check if it is configured correctly. If the header is incorrectly or incompletely configured and contains a HTTP 415 error, the SEO tool can make appropriate recommendations to fix the error.
  • Checking the server settings: SEO tools can also check the settings of the server to find possible causes of a HTTP 415 Identify errors. This may include, for example, incorrect configuration of MIME types or limitations in processing media types. By identifying and correcting such problems, the HTTP 415 Error will be fixed.

Using SEO tools to detect and fix errors provides an efficient way, HTTP 415 Identify and correct errors. Through regular monitoring and analysis of the Status codes, media type headers, and server settings, website owners can ensure that their website is free from these errors and provides optimal user experience and SEO performance.

Manual error detection methods

One way to use the HTTP 415 Detecting errors manually consists of carefully checking the server responses and the links accessed. Here are some manual error detection methods:

  1. Verify server responses: Check the server responses for HTTP 415 codes. This can be done via the developer tools in the web browser or via special programming tools that use HTTP-Status codes show
  2. Checking the called links: Go through the accessed links of your website and check if they are configured correctly. Make sure that the file types and media types are specified correctly.
  3. Testing the website with different file formats: Try uploading files with different formats on the website and check if the HTTP 415 error continues to occur. This will help you determine if the problem is specific to certain file types.
  4. Verify the server configuration: Check the server configuration to ensure that it responds correctly to the received requests. Check that the media type is configured correctly and that there may be conflicts with other settings.

Fix HTTP 415 errors

A HTTP 415 Error occurs when the server does not support or cannot process the media type sent by the client. This can cause problems with displaying or retrieving content. To resolve this error, there are several possible solutions:

  1. Correctly configure the media type: Check the server settings and make sure that the media type is configured correctly. This may mean adjusting the MIME type of the document or expanding the supported media types.
  2. Server settings optimization: Check the server settings and make sure they are configured correctly. Make sure that the server supports and responds correctly to the requested media type. Certain settings may need to be adjusted.

Configuring the media type correctly

The configuration of the media type is an important measure for HTTP 415 Avoid mistakes. A HTTP 415 Error occurs when the server cannot process the received content because the media type is not supported.

To fix this error, it is important to configure the media type correctly. The following steps can help:

  1. Check the supported media type of the server and make sure that the required media types are supported.
  2. Configure the media type correctly in the server configuration or in the content management system (CMS).
  3. Use the correct MIME types to specify the media type. Make sure they match the specific requirements and standards.
  4. Test the configuration to make sure that the server can handle the media type correctly.

An example of a correct configuration of the media type in the HTTP header might look like the following:

Content-Type application/json

By configuring the media type correctly, you can ensure that the server processes the received content correctly and thus HTTP 415 errors are avoided.

Server settings optimization

Optimized configuration of the server settings can HTTP 415 errors are avoided. It is important to adjust the settings so that the server responds correctly to requests and sends the correct media type.

There are some points to pay attention to when optimizing server settings:

  • Check the MIME types: Ensure that the MIME types are configured properly and that the server is delivering the correct media type. Check the MIME configuration to ensure that the correct type is set for each file extension.
  • Check the content negotiation settings: Content negotiation allows you to select the appropriate media type for a particular requirement. Ensure that the content negotiation settings are configured correctly to avoid compatibility issues.
  • Identify and resolve conflicts: Check if there are conflicts between the media types. This can cause the server to send the wrong media type and cause a HTTP 415 Causes errors. Identify such conflicts and fix them by adjusting the configuration accordingly.
  • Monitor server logs on a regular basis: Keep an eye on server logs to identify potential problems early. Check whether HTTP 415 errors occur and take appropriate action to correct them.

Optimized configuration of the server settings can reduce the probability of HTTP 415 errors can be reduced. Thorough review and adjustment of MIME types, content negotiation settings, and regular monitoring of server logs are critical to avoid such errors.

Avoid future HTTP 415 errors

One of the most important goals for any website owner is to identify and avoid potential problems to ensure smooth operation of the website. To ensure this from the very beginning, it is important to identify the possible causes of a HTTP 415 Understand errors and take appropriate action to avoid them.

To ensure future HTTP 415 To avoid mistakes, website owners should follow these best practices:

  • Regular monitoring of server logs: By regularly monitoring server logs, it is possible to detect at an early stage if there are problems with the media type and if HTTP 415 Errors occur.
  • Best practices for error prevention: there are certain best practices that should be followed in order to HTTP 415 avoid errors. This includes, for example, using the correct media types and configuring the server settings correctly.

By following these best practices, website operators can ensure that HTTP 415 errors are avoided and their website functions optimally. It is important to check the website regularly and make adjustments as needed to ensure a positive user experience.

Regular monitoring of server logs

Regular monitoring of server logs is an important step in order to HTTP 415 to avoid errors and improve website performance. All activities and communications on the server are documented by logging.

By monitoring the server logs, it is possible to quickly identify if there are any erroneous requests or unusual activity that could lead to a HTTP 415 could lead to errors. It is advisable to check these logs regularly to detect and correct potential problems at an early stage.

The server logs record information such as IP addresses, request paths, media types used, and other technical data. By analyzing this information, it is possible to determine whether the server is configured properly and whether the correct media types are being used for the various requests. If a problem is detected in the process, it can be corrected accordingly in order to HTTP 415 Prevent errors.

Best practices for error prevention

Good error prevention starts with a solidly set up website. Here are some best practices you can follow to HTTP 415 Avoid mistakes:

  • Correct use of media types: Make sure that the media types of your resources are configured correctly. Verify that the specified media types correspond to the actual file formats.
  • Optimization of server settings: Make sure that your server settings are configured correctly in order to HTTP 415 prevent errors. This includes checking the file upload settings and the correct handling of media types.

Below is a table of some common media types and their associated file extensions to help you avoid HTTP 415 Helping mistakes:

Media type File extensions
Text .txt, .html, .css
Image .jpg, .png, .gif
Audio .mp3, .wav
Video .mp4, .mov

By following these best practices for error prevention, you can ensure that your website content is properly submitted and retrieved by search engines and users without any issues.

« Back to Glossary Index


What is HTTP status code 415? arrow icon in accordion
- The HTTP status code 415 stands for "Unsupported Media Type" and is used when the server does not support the provided media type specification.
When does HTTP status code 415 occur? arrow icon in accordion
- This status code occurs when the client sends a request to the server specifying a media type that the server cannot process or does not support.
What is the meaning of HTTP status code 415 for the client? arrow icon in accordion
- HTTP status code 415 informs the client that the server must reject the requested request due to an invalid or unsupported media type.
What media types can cause an HTTP 415 error? arrow icon in accordion
- Any media type that is not supported by the server may result in an HTTP 415 error. For example, this may be the case with file formats or encodings.
How can a client fix the HTTP 415 error? arrow icon in accordion
- The client can try to resend the request with a supported media type or contact the server administrator to get information about the correct media type.
Which HTTP status code is often sent along with the HTTP 415 code? arrow icon in accordion
- Often the HTTP status code 415 is sent together with the HTTP 400 code "Bad Request" to indicate an invalid request syntax.
What header fields are usually sent along with the HTTP 415 status code? arrow icon in accordion
- In case of an HTTP 415 error, the server usually sends a "Content-Type" header field with information about which media type is not supported. An "Accept" or "Accept-Encoding" header field can also be used.
How can a server indicate support for different media types? arrow icon in accordion
- A server can send a list of supported media types in the "Content-Type" response header. The client can evaluate this list and specify an appropriate media type.
Do all servers support all available media types? arrow icon in accordion
- No, not all servers support all available media types. A server can handle only certain media types, depending on what configuration or extensions are installed.
In which case could the HTTP 415 status code also be used? arrow icon in accordion
- The HTTP 415 status code can also be used when a client tries to submit unwanted or unsafe media types to the server and the server explicitly rejects them.

With top positions to the new sales channel.

Let Google work for you, because visitors become customers.

About the author

Social Media & Links:

Your free gift!
Our SEO strategy

You want more visitors and better Google rankings?

Watch our free SEO strategy webinar now and understand where your SEO levers are and how to tackle them head on.