2xx Success Status Codes
These status codes indicate that the action was successfully received, understood, and accepted by the server.
TL;DR
2xx codes mean success. The request was received, understood, and accepted.
Complete List of 2xx Status Codes
200
OK
Request successful
201
Created
Resource created successfully
202
Accepted
Request accepted for processing
203
Non-Authoritative Information
Success, but a proxy modified the returned metadata.
204
No Content
Success but no content to return
205
Reset Content
Success; the client should reset the form/document view.
206
Partial Content
Partial response to a Range request (downloads, streaming).
207
Multi-Status
WebDAV: status for multiple independent operations.
208
Already Reported
WebDAV: members already enumerated, not repeated.
226
IM Used
Response is the result of delta encoding (instance manipulations).