You may have encountered a scary HTTP status code or two, whether you have been maintaining a website, have worked in web development, or have been dealing with SEO campaigns. Others are basic, such as 404, which informs you that you are not finding a page. Others are less obvious. An example of this is HTTP Status Code 409.
Understanding HTTP Status Codes
It is worth having the big picture before taking the 409 in particular. The languages that browsers and servers communicate using include HTTP status codes. They are the little messages that your server sends back when somebody tries to open a page or do some action.
They’re grouped by type:
- 1xx (Informational): Rarely seen, mostly internal messages.
- 2xx (Success): Everything worked fine. 200 OK is the most common.
- 3xx (Redirection): The Page moved, so the browser goes somewhere else.
- 4xx (Client Errors): Something’s wrong on the user’s end. Maybe a missing page or a conflict.
- 5xx (Server Errors): Something broke on the server side.
HTTP Status Code 409 belongs in the 4xx family. That means it’s a client-side issue, but not in the obvious “wrong URL” sense. It’s more about a conflict.
What Exactly Does HTTP Status Code 409 Mean?
A 409 Conflict. One request that you are making is impossible to carry out due to conflicting with the current state of the resource. In less technical language: You are attempting to make something happen, but what the server is essentially saying is that it can not create that without causing some problems to what already exists.
Imagine it is an attempt to book two meetings at the same time in the same room. This is a legitimate request, but the state of the room (already booked) makes it impossible.
To developers and SEO professionals, it can manifest itself in several way,s and this can occur when handling content, APIs, and web apps.
