We know a traditional HTTP Server Response codes like 200, 404 and 500 . But Akamai Content Delivery Network follows slightly additional set of HTTP Status codes like 000 .
Here is the details of Akamai Edge HTTP Response Codes mentioned in Akamai KB Article
Here is the details of Akamai Edge HTTP Response Codes mentioned in Akamai KB Article
OK: content was delivered to the client (200, 206, 408)
Not-Modified: a positive response to a content freshness request (304)
Redirect: a redirect response was returned to the client (301, 302)
Not-Found: an unknown object was requested (404)
Permission: a permission denied or HTTP basic auth response (415, 403, 401)
Gateway Error: usually an issue with the origin server (504)
Server Error: an issue with an origin or Akamai server (501, 502, 503, 504)
Client Abort: the client canceled the connection before receiving any content (000)
Other: any other HTTP response code not included above