Historical Stats

The Historical Stats API allows you to programmatically retrieve historical caching statistics derived from your Fastly services. You can use these metrics to help you optimize your site’s data caching and analyze your site’s traffic.

Data latency

Data with day resolution is bucketed based on UTC days and each day's data becomes available around 2am the following day. hour resolution buckets become available approximately 15 minutes after the end of each hour. minute data usually becomes available two minutes after the end of the minute, but can take up to 15 minutes. If your use case requires data closer to real-time, consider using the real-time API instead.

We do not report data for time periods that have not yet ended.

IMPORTANT: You cannot retrieve minutely historical statistics data older than 35 days from the current date. You cannot retrieve hourly historical statistics data older than 375 days from the current date. Contact support@fastly.com to discuss your minutely or hourly data needs.

Query options (Time range, Sampling rate, and Regions)

When the from or to parameters specify a date without a time, the time component will be set to 00:00. To specify a different time, use a Unix timestamp or an expression such as from=2013-01-01%2008:00&to=2013-01-02%2008:00

If from is omitted, the time range will start at a point determined by the value of by:

/stats or /stats?by=day: one month ago
/stats?by=hour: one day ago
/stats?by=minute: 30 minutes ago

If you define values for all of the from, to, and by parameters you can accidentally ask for a very large data set. We will not process exceedingly large queries.

IMPORTANT: All absolute time references in the historical stats API are expressed in UTC.

Examples

Returns stats grouped by day, for the last ten days, across all regions:

/stats?from=10+days+ago

Stats from Tuesday 14th May 2017 @ 20:29:37 UTC to Thursday 16th May 2017 @ 20:29:37 UTC:

/stats?from=1494793777&to=1494966577

Daily stats from January 1st, 2017 (2017-01-01) to February 1st, 2017 (2017-02-01):

/stats?from=1%2F1%2F2017&to=2%2F1%2F2017

Returns stats for US POPs only:

/stats?region=usa

Returns stats for European POPs only:

/stats?region=europe

Data model

`meta`	object	Meta information about the scope of the query in a human readable format.
`msg`	string	If the query was not successful, this will provide a string that explains why.
`status`	string	Whether or not we were able to successfully execute the query.
`data`	array
`customer_id`	string	Alphanumeric string identifying the customer. Read-only.
`services`	object	Organized by service id.
`total`	object	Organized by region.
`name`	string	The name of the service.

Stats data model

The results of stats queries, may be grouped by service depending on endpoint, and aggregated over the appropriate time span.

`aia_estimated_time_saved_ms`	integer	The estimated amount of time saved by responses served from the AI Accelerator semantic cache.
`aia_origin_usage_tokens`	integer	The number of usage tokens reported by the request to the origin from AI Accelerator.
`aia_requests`	integer	Number of requests received by AI Accelerator.
`aia_response_usage_tokens`	integer	The usage tokens associated with the response returned from the AI Accelerator cache.
`aia_status_1xx`	integer	Number of "Informational" category status codes received from AI provider.
`aia_status_2xx`	integer	Number of "Success" status codes received from AI provider.
`aia_status_3xx`	integer	Number of "Redirection" received from AI provider.
`aia_status_4xx`	integer	Number of "Client Error" received from AI provider.
`aia_status_5xx`	integer	Number of "Server Error" received from AI provider.
`all_edge_hit_requests`	integer	Number of requests sent by end users to Fastly that resulted in a hit at the edge for a VCL service.
`all_edge_miss_requests`	integer	Number of requests sent by end users to Fastly that resulted in a miss at the edge for a VCL service.
`all_error_requests`	integer	Number of cache errors for a VCL service.
`all_hit_requests`	integer	Number of cache hits for a VCL service.
`all_miss_requests`	integer	Number of cache misses for a VCL service.
`all_pass_requests`	integer	Number of requests that passed through the CDN without being cached for a VCL service.
`all_status_1xx`	integer	Number of "Informational" category status codes delivered for all sources.
`all_status_2xx`	integer	Number of "Success" status codes delivered for all sources.
`all_status_3xx`	integer	Number of "Redirection" codes delivered for all sources.
`all_status_4xx`	integer	Number of "Client Error" codes delivered for all sources.
`all_status_5xx`	integer	Number of "Server Error" codes delivered for all sources.
`all_synth_requests`	integer	Number of requests that returned a synthetic response (i.e., response objects created with the `synthetic` VCL statement) for a VCL service.
`attack_blocked_req_body_bytes`	integer	Total body bytes received from requests that triggered a WAF rule that was blocked.
`attack_blocked_req_header_bytes`	integer	Total header bytes received from requests that triggered a WAF rule that was blocked.
`attack_logged_req_body_bytes`	integer	Total body bytes received from requests that triggered a WAF rule that was logged.
`attack_logged_req_header_bytes`	integer	Total header bytes received from requests that triggered a WAF rule that was logged.
`attack_passed_req_body_bytes`	integer	Total body bytes received from requests that triggered a WAF rule that was passed.
`attack_passed_req_header_bytes`	integer	Total header bytes received from requests that triggered a WAF rule that was passed.
`attack_req_body_bytes`	integer	Total body bytes received from requests that triggered a WAF rule.
`attack_req_header_bytes`	integer	Total header bytes received from requests that triggered a WAF rule.
`attack_resp_synth_bytes`	integer	Total bytes delivered for requests that triggered a WAF rule and returned a synthetic response.
`bandwidth`	integer	Total bytes delivered (`resp_header_bytes` + `resp_body_bytes` + `bereq_header_bytes` + `bereq_body_bytes` + `compute_resp_header_bytes` + `compute_resp_body_bytes` + `compute_bereq_header_bytes` + `compute_bereq_body_bytes` + `websocket_resp_header_bytes` + `websocket_resp_body_bytes` + `websocket_bereq_header_bytes` + `websocket_bereq_body_bytes` + `fanout_resp_header_bytes` + `fanout_resp_body_bytes` + `fanout_bereq_header_bytes` + `fanout_bereq_body_bytes`).
`bereq_body_bytes`	integer	Total body bytes sent to origin.
`bereq_header_bytes`	integer	Total header bytes sent to origin.
`body_size`	integer	Total body bytes delivered (alias for resp_body_bytes).
`bot_challenge_complete_tokens_checked`	integer	The number of challenge-complete tokens checked.
`bot_challenge_complete_tokens_disabled`	integer	The number of challenge-complete tokens not checked because the feature was disabled.
`bot_challenge_complete_tokens_failed`	integer	The number of challenge-complete tokens that failed validation.
`bot_challenge_complete_tokens_issued`	integer	The number of challenge-complete tokens issued. For example, issuing a challenge-complete token after a series of CAPTCHA challenges ending in success.
`bot_challenge_complete_tokens_passed`	integer	The number of challenge-complete tokens that passed validation.
`bot_challenge_starts`	integer	The number of challenge-start tokens created.
`bot_challenges_failed`	integer	The number of failed challenge solutions processed. For example, an incorrect CAPTCHA solution.
`bot_challenges_issued`	integer	The number of challenges issued. For example, the issuance of a CAPTCHA challenge.
`bot_challenges_succeeded`	integer	The number of successful challenge solutions processed. For example, a correct CAPTCHA solution.
`compute_bereq_body_bytes`	integer	Total body bytes sent to backends (origins) by the Compute platform.
`compute_bereq_errors`	integer	Number of backend request errors, including timeouts.
`compute_bereq_header_bytes`	integer	Total header bytes sent to backends (origins) by the Compute platform.
`compute_bereqs`	integer	Number of backend requests started.
`compute_beresp_body_bytes`	integer	Total body bytes received from backends (origins) by the Compute platform.
`compute_beresp_header_bytes`	integer	Total header bytes received from backends (origins) by the Compute platform.
`compute_execution_time_ms`	number	The amount of active CPU time used to process your requests (in milliseconds).
`compute_globals_limit_exceeded`	integer	Number of times a guest exceeded its globals limit.
`compute_guest_errors`	integer	Number of times a service experienced a guest code error.
`compute_heap_limit_exceeded`	integer	Number of times a guest exceeded its heap limit.
`compute_ram_used`	integer	The amount of RAM used for your service by Fastly (in bytes).
`compute_req_body_bytes`	integer	Total body bytes received by the Compute platform.
`compute_req_header_bytes`	integer	Total header bytes received by the Compute platform.
`compute_request_time_billed_ms`	number	The total amount of request processing time you will be billed for, measured in 50 millisecond increments.
`compute_request_time_ms`	number	The total, actual amount of time used to process your requests, including active CPU time (in milliseconds).
`compute_requests`	integer	The total number of requests that were received for your service by Fastly.
`compute_resource_limit_exceeded`	integer	Number of times a guest exceeded its resource limit, includes heap, stack, globals, and code execution timeout.
`compute_resp_body_bytes`	integer	Total body bytes sent from Compute to end user.
`compute_resp_header_bytes`	integer	Total header bytes sent from Compute to end user.
`compute_resp_status_1xx`	integer	Number of "Informational" category status codes delivered by the Compute platform.
`compute_resp_status_2xx`	integer	Number of "Success" category status codes delivered by the Compute platform.
`compute_resp_status_3xx`	integer	Number of "Redirection" category status codes delivered by the Compute platform.
`compute_resp_status_4xx`	integer	Number of "Client Error" category status codes delivered by the Compute platform.
`compute_resp_status_5xx`	integer	Number of "Server Error" category status codes delivered by the Compute platform.
`compute_runtime_errors`	integer	Number of times a service experienced a guest runtime error.
`compute_stack_limit_exceeded`	integer	Number of times a guest exceeded its stack limit.
`ddos_action_blackhole`	integer	The number of times the blackhole action was taken. The blackhole action quietly closes a TCP connection without sending a reset. The blackhole action quietly closes a TCP connection without notifying its peer (all TCP state is dropped).
`ddos_action_close`	integer	The number of times the close action was taken. The close action aborts the connection as soon as possible. The close action takes effect either right after accept, right after the client hello, or right after the response was sent.
`ddos_action_downgrade`	integer	The number of times the downgrade action was taken. The downgrade action restricts the client to http1.
`ddos_action_downgraded_connections`	integer	The number of connections the downgrade action was applied to. The downgrade action restricts the connection to http1.
`ddos_action_limit_streams_connections`	integer	For HTTP/2, the number of connections the limit-streams action was applied to. The limit-streams action caps the allowed number of concurrent streams in a connection.
`ddos_action_limit_streams_requests`	integer	For HTTP/2, the number of requests made on a connection for which the limit-streams action was taken. The limit-streams action caps the allowed number of concurrent streams in a connection.
`ddos_action_tarpit`	integer	The number of times the tarpit action was taken. The tarpit action delays writing the response to the client.
`ddos_action_tarpit_accept`	integer	The number of times the tarpit-accept action was taken. The tarpit-accept action adds a delay when accepting future connections.
`ddos_protection_requests_allow_count`	integer	Number of requests analyzed for DDoS attacks against a customer origin or service, but with no DDoS detected.
`ddos_protection_requests_detect_count`	integer	Number of requests classified as a DDoS attack against a customer origin or service.
`ddos_protection_requests_mitigate_count`	integer	Number of requests classified as a DDoS attack against a customer origin or service that were mitigated by the Fastly platform.
`deliver_sub_count`	integer	Number of executions of the `vcl_deliver` Varnish subroutine.
`deliver_sub_time`	number	Time spent inside the `vcl_deliver` Varnish subroutine (in seconds).
`edge_hit_requests`	integer	Number of requests sent by end users to Fastly that resulted in a hit at the edge.
`edge_hit_resp_body_bytes`	integer	Body bytes delivered for edge hits.
`edge_hit_resp_header_bytes`	integer	Header bytes delivered for edge hits.
`edge_miss_requests`	integer	Number of requests sent by end users to Fastly that resulted in a miss at the edge.
`edge_miss_resp_body_bytes`	integer	Body bytes delivered for edge misses.
`edge_miss_resp_header_bytes`	integer	Header bytes delivered for edge misses.
`edge_requests`	integer	Number of requests sent by end users to Fastly.
`edge_resp_body_bytes`	integer	Total body bytes delivered from Fastly to the end user.
`edge_resp_header_bytes`	integer	Total header bytes delivered from Fastly to the end user.
`error_sub_count`	integer	Number of executions of the `vcl_error` Varnish subroutine.
`error_sub_time`	number	Time spent inside the `vcl_error` Varnish subroutine (in seconds).
`errors`	integer	Number of cache errors.
`fanout_bereq_body_bytes`	integer	Total body or message content bytes sent to backends over Fanout connections.
`fanout_bereq_header_bytes`	integer	Total header bytes sent to backends over Fanout connections.
`fanout_beresp_body_bytes`	integer	Total body or message content bytes received from backends over Fanout connections.
`fanout_beresp_header_bytes`	integer	Total header bytes received from backends over Fanout connections.
`fanout_conn_time_ms`	integer	Total duration of Fanout connections with end users.
`fanout_recv_publishes`	integer	Total published messages received from the publish API endpoint.
`fanout_req_body_bytes`	integer	Total body or message content bytes received from end users over Fanout connections.
`fanout_req_header_bytes`	integer	Total header bytes received from end users over Fanout connections.
`fanout_resp_body_bytes`	integer	Total body or message content bytes sent to end users over Fanout connections, excluding published message content.
`fanout_resp_header_bytes`	integer	Total header bytes sent to end users over Fanout connections.
`fanout_send_publishes`	integer	Total published messages sent to end users.
`fetch_sub_count`	integer	Number of executions of the `vcl_fetch` Varnish subroutine.
`fetch_sub_time`	number	Time spent inside the `vcl_fetch` Varnish subroutine (in seconds).
`hash_sub_count`	integer	Number of executions of the `vcl_hash` Varnish subroutine.
`hash_sub_time`	number	Time spent inside the `vcl_hash` Varnish subroutine (in seconds).
`header_size`	integer	Total header bytes delivered (alias for resp_header_bytes).
`hit_ratio`	number	Ratio of cache hits to cache misses (between 0 and 1).
`hit_resp_body_bytes`	integer	Total body bytes delivered for cache hits.
`hit_sub_count`	integer	Number of executions of the `vcl_hit` Varnish subroutine.
`hit_sub_time`	number	Time spent inside the `vcl_hit` Varnish subroutine (in seconds).
`hits`	integer	Number of cache hits.
`hits_time`	number	Total amount of time spent processing cache hits (in seconds).
`http2`	integer	Number of requests received over HTTP/2.
`http3`	integer	Number of requests received over HTTP/3.
`imgopto`	integer	Number of responses that came from the Fastly Image Optimizer service. If the service receives 10 requests for an image, this stat will be 10 regardless of how many times the image was transformed.
`imgopto_resp_body_bytes`	integer	Total body bytes delivered from the Fastly Image Optimizer service, including shield traffic.
`imgopto_resp_header_bytes`	integer	Total header bytes delivered from the Fastly Image Optimizer service, including shield traffic.
`imgopto_shield`	integer	Number of responses that came from the Fastly Image Optimizer service via a shield.
`imgopto_shield_resp_body_bytes`	integer	Total body bytes delivered via a shield from the Fastly Image Optimizer service.
`imgopto_shield_resp_header_bytes`	integer	Total header bytes delivered via a shield from the Fastly Image Optimizer service.
`imgopto_transforms`	integer	Number of transforms performed by the Fastly Image Optimizer service.
`imgvideo`	integer	Number of video responses that came from the Fastly Image Optimizer service.
`imgvideo_frames`	integer	Number of video frames that came from the Fastly Image Optimizer service. A video frame is an individual image within a sequence of video.
`imgvideo_resp_body_bytes`	integer	Total body bytes of video delivered from the Fastly Image Optimizer service.
`imgvideo_resp_header_bytes`	integer	Total header bytes of video delivered from the Fastly Image Optimizer service.
`imgvideo_shield`	integer	Number of video responses delivered via a shield that came from the Fastly Image Optimizer service.
`imgvideo_shield_frames`	integer	Number of video frames delivered via a shield that came from the Fastly Image Optimizer service. A video frame is an individual image within a sequence of video.
`imgvideo_shield_resp_body_bytes`	integer	Total body bytes of video delivered via a shield from the Fastly Image Optimizer service.
`imgvideo_shield_resp_header_bytes`	integer	Total header bytes of video delivered via a shield from the Fastly Image Optimizer service.
`ipv6`	integer	Number of requests that were received over IPv6.
`kv_store_class_a_operations`	integer	The total number of class a operations for the KV store.
`kv_store_class_b_operations`	integer	The total number of class b operations for the KV store.
`log`	integer	Number of log lines sent.
`log_bytes`	integer	Total log bytes sent.
`miss`	integer	Number of cache misses.
`miss_resp_body_bytes`	integer	Total body bytes delivered for cache misses.
`miss_sub_count`	integer	Number of executions of the `vcl_miss` Varnish subroutine.
`miss_sub_time`	number	Time spent inside the `vcl_miss` Varnish subroutine (in seconds).
`miss_time`	number	Total amount of time spent processing cache misses (in seconds).
`object_size_100k`	integer	Number of objects served that were between 10KB and 100KB in size.
`object_size_100m`	integer	Number of objects served that were between 10MB and 100MB in size.
`object_size_10k`	integer	Number of objects served that were between 1KB and 10KB in size.
`object_size_10m`	integer	Number of objects served that were between 1MB and 10MB in size.
`object_size_1g`	integer	Number of objects served that were between 100MB and 1GB in size.
`object_size_1k`	integer	Number of objects served that were under 1KB in size.
`object_size_1m`	integer	Number of objects served that were between 100KB and 1MB in size.
`object_storage_class_a_operations_count`	integer	A count of the number of Class A Object Storage operations.
`object_storage_class_b_operations_count`	integer	A count of the number of Class B Object Storage operations.
`object_store_class_a_operations`	integer	Deprecated. Use kv_store_class_a_operations.
`object_store_class_b_operations`	integer	Deprecated. Use kv_store_class_b_operations.
`origin_cache_fetch_resp_body_bytes`	integer	Body bytes received from origin for cacheable content.
`origin_cache_fetch_resp_header_bytes`	integer	Header bytes received from an origin for cacheable content.
`origin_cache_fetches`	integer	The total number of completed requests made to backends (origins) that returned cacheable content.
`origin_fetch_body_bytes`	integer	Total request body bytes sent to origin.
`origin_fetch_header_bytes`	integer	Total request header bytes sent to origin.
`origin_fetch_resp_body_bytes`	integer	Total body bytes received from origin.
`origin_fetch_resp_header_bytes`	integer	Total header bytes received from origin.
`origin_fetches`	integer	Number of requests sent to origin.
`origin_offload`	number	Origin Offload measures the ratio of bytes served to end users that were cached by Fastly, over the bytes served to end users, between 0 and 1. ((`edge_resp_body_bytes` + `edge_resp_header_bytes`) - (`origin_fetch_resp_body_bytes` + `origin_fetch_resp_header_bytes`)) / (`edge_resp_body_bytes` + `edge_resp_header_bytes`).
`origin_revalidations`	integer	Number of responses received from origin with a `304` status code in response to an `If-Modified-Since` or `If-None-Match` request. Under regular scenarios, a revalidation will imply a cache hit. However, if using Fastly Image Optimizer or segmented caching this may result in a cache miss.
`otfp`	integer	Number of responses that came from the Fastly On-the-Fly Packaging service for video-on-demand.
`otfp_deliver_time`	number	Total amount of time spent delivering a response from the Fastly On-the-Fly Packaging service for video-on-demand (in seconds).
`otfp_manifests`	integer	Number of responses that were manifest files from the Fastly On-the-Fly Packaging service for video-on-demand.
`otfp_resp_body_bytes`	integer	Total body bytes delivered from the Fastly On-the-Fly Packaging service for video-on-demand.
`otfp_resp_header_bytes`	integer	Total header bytes delivered from the Fastly On-the-Fly Packaging service for video-on-demand.
`otfp_shield_resp_body_bytes`	integer	Total body bytes delivered via a shield for the Fastly On-the-Fly Packaging service for video-on-demand.
`otfp_shield_resp_header_bytes`	integer	Total header bytes delivered via a shield for the Fastly On-the-Fly Packaging service for video-on-demand.
`otfp_shield_time`	number	Total amount of time spent delivering a response via a shield from the Fastly On-the-Fly Packaging service for video-on-demand (in seconds).
`pass`	integer	Number of requests that passed through the CDN without being cached.
`pass_resp_body_bytes`	integer	Total body bytes delivered for cache passes.
`pass_sub_count`	integer	Number of executions of the `vcl_pass` Varnish subroutine.
`pass_sub_time`	number	Time spent inside the `vcl_pass` Varnish subroutine (in seconds).
`pass_time`	number	Total amount of time spent processing cache passes (in seconds).
`pci`	integer	Number of responses with the PCI flag turned on.
`pipe`	integer	Optional. Pipe operations performed (legacy feature).
`pipe_sub_count`	integer	Number of executions of the `vcl_pipe` Varnish subroutine.
`pipe_sub_time`	number	Time spent inside the `vcl_pipe` Varnish subroutine (in seconds).
`predeliver_sub_count`	integer	Number of executions of the `vcl_predeliver` Varnish subroutine.
`predeliver_sub_time`	number	Time spent inside the `vcl_predeliver` Varnish subroutine (in seconds).
`prehash_sub_count`	integer	Number of executions of the `vcl_prehash` Varnish subroutine.
`prehash_sub_time`	number	Time spent inside the `vcl_prehash` Varnish subroutine (in seconds).
`recv_sub_count`	integer	Number of executions of the `vcl_recv` Varnish subroutine.
`recv_sub_time`	number	Time spent inside the `vcl_recv` Varnish subroutine (in seconds).
`req_body_bytes`	integer	Total body bytes received.
`req_header_bytes`	integer	Total header bytes received.
`request_collapse_unusable_count`	integer	Number of requests that were collapsed and unable to be satisfied by the resulting cache object.
`request_collapse_usable_count`	integer	Number of requests that were collapsed and satisfied by a usable cache object.
`request_denied_get_head_body`	integer	Number of requests where Fastly responded with 400 due to the request being a GET or HEAD request containing a body.
`requests`	integer	Number of requests processed.
`resp_body_bytes`	integer	Total body bytes delivered (edge_resp_body_bytes + shield_resp_body_bytes).
`resp_header_bytes`	integer	Total header bytes delivered (edge_resp_header_bytes + shield_resp_header_bytes).
`restarts`	integer	Number of restarts performed.
`segblock_origin_fetches`	integer	Number of `Range` requests to origin for segments of resources when using segmented caching.
`segblock_shield_fetches`	integer	Number of `Range` requests to a shield for segments of resources when using segmented caching.
`service_id`	string	Alphanumeric string identifying the service. Read-only.
`shield`	integer	Number of requests from edge to the shield POP.
`shield_cache_fetches`	integer	The total number of completed requests made to shields that returned cacheable content.
`shield_fetch_body_bytes`	integer	Total request body bytes sent to a shield.
`shield_fetch_header_bytes`	integer	Total request header bytes sent to a shield.
`shield_fetch_resp_body_bytes`	integer	Total response body bytes sent from a shield to the edge.
`shield_fetch_resp_header_bytes`	integer	Total response header bytes sent from a shield to the edge.
`shield_fetches`	integer	Number of requests made from one Fastly POP to another, as part of shielding.
`shield_hit_requests`	integer	Number of requests that resulted in a hit at a shield.
`shield_hit_resp_body_bytes`	integer	Body bytes delivered for shield hits.
`shield_hit_resp_header_bytes`	integer	Header bytes delivered for shield hits.
`shield_miss_requests`	integer	Number of requests that resulted in a miss at a shield.
`shield_miss_resp_body_bytes`	integer	Body bytes delivered for shield misses.
`shield_miss_resp_header_bytes`	integer	Header bytes delivered for shield misses.
`shield_resp_body_bytes`	integer	Total body bytes delivered via a shield.
`shield_resp_header_bytes`	integer	Total header bytes delivered via a shield.
`shield_revalidations`	integer	Number of responses received from origin with a `304` status code, in response to an `If-Modified-Since` or `If-None-Match` request to a shield. Under regular scenarios, a revalidation will imply a cache hit. However, if using segmented caching this may result in a cache miss.
`start_time`	integer	Timestamp for the start of the time period being reported.
`status_1xx`	integer	Number of "Informational" category status codes delivered.
`status_200`	integer	Number of responses sent with status code 200 (Success).
`status_204`	integer	Number of responses sent with status code 204 (No Content).
`status_206`	integer	Number of responses sent with status code 206 (Partial Content).
`status_2xx`	integer	Number of "Success" status codes delivered.
`status_301`	integer	Number of responses sent with status code 301 (Moved Permanently).
`status_302`	integer	Number of responses sent with status code 302 (Found).
`status_304`	integer	Number of responses sent with status code 304 (Not Modified).
`status_3xx`	integer	Number of "Redirection" codes delivered.
`status_400`	integer	Number of responses sent with status code 400 (Bad Request).
`status_401`	integer	Number of responses sent with status code 401 (Unauthorized).
`status_403`	integer	Number of responses sent with status code 403 (Forbidden).
`status_404`	integer	Number of responses sent with status code 404 (Not Found).
`status_406`	integer	Number of responses sent with status code 406 (Not Acceptable).
`status_416`	integer	Number of responses sent with status code 416 (Range Not Satisfiable).
`status_429`	integer	Number of responses sent with status code 429 (Too Many Requests).
`status_4xx`	integer	Number of "Client Error" codes delivered.
`status_500`	integer	Number of responses sent with status code 500 (Internal Server Error).
`status_501`	integer	Number of responses sent with status code 501 (Not Implemented).
`status_502`	integer	Number of responses sent with status code 502 (Bad Gateway).
`status_503`	integer	Number of responses sent with status code 503 (Service Unavailable).
`status_504`	integer	Number of responses sent with status code 504 (Gateway Timeout).
`status_505`	integer	Number of responses sent with status code 505 (HTTP Version Not Supported).
`status_5xx`	integer	Number of "Server Error" codes delivered.
`synth`	integer	Number of requests that returned a synthetic response (i.e., response objects created with the `synthetic` VCL statement).
`tls`	integer	Number of requests that were received over TLS.
`tls_handshake_sent_bytes`	integer	Number of bytes transferred during TLS handshake.
`tls_v10`	integer	Number of requests received over TLS 1.0.
`tls_v11`	integer	Number of requests received over TLS 1.1.
`tls_v12`	integer	Number of requests received over TLS 1.2.
`tls_v13`	integer	Number of requests received over TLS 1.3.
`uncacheable`	integer	Number of requests that were designated uncachable.
`video`	integer	Number of responses with the video segment or video manifest MIME type (i.e., application/x-mpegurl, application/vnd.apple.mpegurl, application/f4m, application/dash+xml, application/vnd.ms-sstr+xml, ideo/mp2t, audio/aac, video/f4f, video/x-flv, video/mp4, audio/mp4).
`waf_blocked`	integer	Number of requests that triggered a WAF rule and were blocked.
`waf_logged`	integer	Number of requests that triggered a WAF rule and were logged.
`waf_passed`	integer	Number of requests that triggered a WAF rule and were passed.
`websocket_bereq_body_bytes`	integer	Total message content bytes sent to backends over passthrough WebSocket connections.
`websocket_bereq_header_bytes`	integer	Total header bytes sent to backends over passthrough WebSocket connections.
`websocket_beresp_body_bytes`	integer	Total message content bytes received from backends over passthrough WebSocket connections.
`websocket_beresp_header_bytes`	integer	Total header bytes received from backends over passthrough WebSocket connections.
`websocket_conn_time_ms`	integer	Total duration of passthrough WebSocket connections with end users.
`websocket_req_body_bytes`	integer	Total message content bytes received from end users over passthrough WebSocket connections.
`websocket_req_header_bytes`	integer	Total header bytes received from end users over passthrough WebSocket connections.
`websocket_resp_body_bytes`	integer	Total message content bytes sent to end users over passthrough WebSocket connections.
`websocket_resp_header_bytes`	integer	Total header bytes sent to end users over passthrough WebSocket connections.

Endpoints

Get historical stats

GET/stats

Get historical stats for a single field

GET/stats/field/field

Get aggregated historical stats

GET/stats/aggregate

Get historical stats for a single service

GET/stats/service/service_id

Get historical stats for a single service/field combination

GET/stats/service/service_id/field/field

Get usage statistics

GET/stats/usage

Get usage statistics per service

GET/stats/usage_by_service

Get month-to-date usage statistics

GET/stats/usage_by_month

Get region codes

GET/stats/regions

Network services

Security

Compute

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