1.xx
- ERR_READ_TIMEOUT
(Generally the HTTP request/response timed out when Akamai tried fetching content from origin. Default read timeout is 120s)
3.xx
- ERR_READ_ERROR
(Generally the TCP connection from Akamai to origin was successful but the origin did not send any (valid) HTTP response headers back)
4.xx
- ERR_WRITE_ERROR
(Usually happens when connection is closed by origin before Akamai could send the complete request)
6.xx
- ERR_CONNECT_FAIL
(When Akamai is trying to connect to origin, the origin or a firewall is actively refusing the connection - e.g. it sent a TCP RST packet)
9.xx
- ERR_INVALID_URL
(The Akamai Edge server does not have a configuration file associated for the host/URL visited)
11.xx
- ERR_DNS_FAIL
(This happens if origin is specified as an FQDN and the Edgeserver cannot resolve the origin hostname to IP. e.g. due to a DNS resolver issue)
15.xx
- ERR_ZERO_SIZE_OBJECT
(Origin server responded with a 0 size object for a request from Akamai)
18.xx
- ERR_ACCESS_DENIED
(Request denied due to WAP/WAF/Botman rule or configuration (auth) setting)
24.xx
- ERR_REFERER_DENIED
(The referrer was denied)
27.xx
- ERR_CLIENT_ABORT
(The client closed the connection to Akamai edge server before the complete object could be transferred to the client - this happens when a client/user navigates away from the page during browser loading)
30.xx
- ERR_FWD_SSL_HANDSHAKE
(SSL certificate verification failed when connecting to the origin)
97.xx
- ERR_CONNECT_TIMEOUT
(Generic error where Akamai is not able to connect to origin server at a network level, TCP/IP layer)