HTTP 200 OK
In short: The request succeeded and the response contains the result.
In more detail: By far the most common status code. What the body contains depends on the method: for GET the requested resource, for POST the result of the action.
In Depth
When it occurs
- Every normally loaded web page, image and successful API response.
- Also for empty result lists: the request itself was fine.
What you can do
- Nothing, everything works.
- Operators: do not serve error pages with 200 (“soft 404”), otherwise search engines treat them as real pages.
See also: HTTP Status Codes Overview, HTTP