What is HTTP 200 OK?
The 200 OK status code is the most common HTTP success response. It indicates that the server successfully received, understood, and processed the client request.
It belongs to the 2xx Successful category of HTTP status codes, which represent successful completion of requests.
When is 200 OK Used?
A server returns 200 OK when a request completes successfully and a response can be returned to the client.
- Loading a web page
- Retrieving API data
- Running successful queries
- Fetching files or resources
Example HTTP Response
HTTP/1.1 200 OK
Content-Type: application/json
{
"status": "success"
}200 OK In APIs
REST APIs commonly return 200 OK when successfully returning requested data.
For example, retrieving a user profile or listing resources will typically return a 200 response.
Why Does It Matter For DevOps?
DevOps engineers frequently use HTTP 200 responses when monitoring application health and troubleshooting services.
- Checking application availability
- Monitoring uptime
- Testing API endpoints
- Debugging load balancers
Summary
The 200 OK response represents a successful HTTP request and is one of the most frequently encountered status codes in modern infrastructure.