--- title: About the Services menu summary: null url: >- https://www.fastly.com/documentation/guides/observability/observability-dashboards/about-the-services-menu --- The Services menu contains links to two pages that display high-level metrics for your services: - **[Service Overview](https://www.fastly.com/documentation/guides/observability/observability-dashboards/about-the-services-menu#about-the-service-overview-page):** page that contains the Service Overview dashboard, which displays different information depending on if you are viewing a Deliver or Compute service. - **[All Services](https://www.fastly.com/documentation/guides/observability/observability-dashboards/about-the-services-menu#about-the-all-services-page):** page that contains the All Services dashboard, which displays aggregated metrics from all of your services. To access the Services menu, go to **Observability** > **Services**. ## Before you begin Be sure you know how to [access the web interface controls](/guides/getting-started/navigating-fastly/about-the-web-interface-controls) before learning about the details you'll encounter here. ## About the Service Overview page The [**Service Overview**](https://manage.fastly.com/observability/dashboard/system/overview/historic) page gives you access to the Service Overview dashboard, which displays different information depending on if you are viewing a Deliver or Compute service. ### Service Overview dashboard for a CDN service When a CDN service is selected from the **Service** menu, the Service Overview dashboard displays metrics that help you understand your service's cache performance, traffic, and errors. #### Traffic Flow These metrics show the volume, rate, and shape of traffic reaching your service. - **Requests:** the number of requests by cache response type. - **Bandwidth:** the average bandwidth served per second by Fastly. - **All Status Codes:** the number of responses sent by status group. - **Total Bandwidth:** the total bytes served by Fastly. This metric does not appear when you are viewing live traffic. - **All Status Codes:** the number of responses sent by status group. - **Status 3XX Details:** the number of HTTP status 301s, 302s, 304s, and other 3XX requests. - **Header & Body Bytes Transferred:** the relative values of bytes transferred when serving the body and header portions of HTTP requests. - **Requests Per Second:** the average number of requests per second. This metric does not appear when you are viewing live traffic. - **Top 10 POPs by Responses:** the number of responses sent by status code, broken out by Fastly's points of presence (POPs) that received requests for your service. #### Error Diagnosis These metrics help you identify where and why errors are occurring across your service. - **Error Ratio:** the number of cache errors. - **Status 4XX Details:** the number of HTTP status 400s, 401s, 403s, 404s, 416s, 427s, and other 4XX requests. - **Status 5XX Details:** the number of HTTP status 500s, 501s, 502s, 503s, 504s, 505s, and other 5XX requests. - **Error Ratio by Region:** the percentage of cache errors per region. - **Top 10 POPs by Errors:** the number of errors sent by status code, broken out by Fastly's points of presence (POPs) that received requests for your service. #### DDoS These metrics show whether your service is under a DDoS attack and how much of that traffic is being mitigated. Specifically, the **Attack requests and mitigations:** chart shows attack traffic patterns for all requests, as well as the following metrics: - **Allowed requests:** the number of requests that were allowed through to your service. - **Attack Request:** the number of requests identified as DDoS attack traffic. - **Attack request mitigated:** the number of attack requests that were successfully mitigated. #### Global POP traffic and origin latency These metrics show how traffic is distributed across Fastly's points of presence (POPs) and how quickly your backend is responding to Fastly. They only appear when viewing live traffic. Specifically, the metrics include: - **Global POP traffic** metrics show the map of Fastly's points of presence (POPs) that receive requests for your service. - **Origin latency** metrics show the distribution of origin latency times that approximate how quickly your backend is responding to Fastly. This histogram only appears when you are viewing live traffic. - **Origin latency heatmap** metrics show the distribution of origin latency times that approximate how quickly your backend is responding to Fastly. This heat map only appears when you are viewing live traffic. - **Origin latency percentiles** metrics show the distribution of origin latency times that approximate how quickly your backend is responding to Fastly. #### Latency These metrics show how quickly requests are being served from cache and origin. - **Hit Time:** the average amount of time spent processing cache hits. - **Miss Time:** the average amount of time spent processing cache misses. - **Pass Time:** the average amount of time spent processing cache passes. #### Cache Performance These metrics help you understand how effectively your service is caching content. - **Hit Ratio:** the percentage of cache hits to all cacheable content over time. - **Origin Offload:** the percentage of bytes served to end users that were cached by Fastly. - **Cache Coverage:** the percentage of your site that you are caching with Fastly. - **Misses:** the number of cache misses. #### Traffic Profile These metrics show the protocol and content characteristics of your traffic. - **Object Sizes:** the number of objects served by payload size. - **HTTP Versions:** the number of requests using HTTP/1.1, HTTP/2, and HTTP/3(QUIC). - **TLS Versions:** the number of requests using TLS 1.0, TLS 1.1, TLS 1.2, and TLS 1.3 protocols. #### Logging These metrics show how much logging traffic is being sent from Fastly to your endpoints. - **Log Lines:** the number of log lines sent to your endpoints from Fastly. - **Total Log Bandwidth:** the total log bytes sent to your endpoints from Fastly. #### Additional metrics The dashboard also displays collections of metrics that you can expand and collapse by clicking the collection name. The collections include: - **[Image Optimizer](https://www.fastly.com/documentation/guides/observability/observability-dashboards/about-the-services-menu#about-the-image-optimizer-metrics-collection):** metrics for your services that relate to image optimization. - **[WebSockets](https://www.fastly.com/documentation/guides/observability/observability-dashboards/about-the-services-menu#about-the-websockets-metrics-collection):** metrics for your service that relate to WebSockets. - **[Fanout](https://www.fastly.com/documentation/guides/observability/observability-dashboards/about-the-services-menu#about-the-fanout-metrics-collection):** metrics for your service that relate to Fanout. ### Service Overview dashboard for a Compute service When a Compute service is selected from the **Service** menu, the Service Overview dashboard displays metrics that help you understand your service's traffic, resource consumption, and errors. #### Traffic Flow These metrics show the volume, rate, and shape of traffic reaching your service. - **Requests Per Second:** the average number of requests per second. This metric does not appear when you are viewing live traffic. - **Bandwidth:** the average bandwidth served per second by Fastly. - **Total Bandwidth Received from Client:** the total bytes received from the client. - **Total Bandwidth Transferred to Client:** the total bytes served by Fastly. - **Total Bandwidth Sent to Backend:** the total bytes sent to backends by Compute. - **Total Bandwidth Received from Backend:** the total bytes received from backends by Compute. - **Response Status Codes:** the total number of response status codes by category delivered by Compute. - **Requests:** the total number of requests that were received for your service by Fastly. - **Top 10 POPs by Responses:** the number of responses sent by status code, broken out by Fastly's points of presence (POPs) that received requests for your service. #### Error Diagnosis These metrics help you identify where and why your Compute service's requests are failing. - **Error Ratio:** the number of cache errors. - **Backend requests & errors:** the number of requests sent to backends and the number of errors received from backends. - **Resource limit errors:** the number of requests that failed due to resource limits being exceeded, such as CPU time or RAM usage. - **Runtime & Logging errors:** the number of requests that failed due to runtime or logging errors, such as a request being canceled or a log endpoint being unreachable. - **Platform errors:** the number of requests that failed due to platform errors, such as a request being canceled or a log endpoint being unreachable. - **Top 10 POPs by Errors:** the number of errors sent by status code, broken out by Fastly's points of presence (POPs) that received requests for your service. #### DDoS These metrics show whether your service is under a DDoS attack and how much of that traffic is being mitigated. Specifically, the **Attack requests and mitigations** chart shows attack traffic patterns for all requests, as well as the following metrics: - **Allowed requests:** the number of requests that were allowed through to your service. - **Attack Request:** the number of requests identified as DDoS attack traffic. - **Attack request mitigated:** the number of attack requests that were successfully mitigated. #### Latency These metrics show how long your Compute service takes to process requests. - **Total Wall Clock Time:** the total, actual amount of time used to process your requests, including active CPU time. - **Wall clock time per request:** the average wall clock time per request. #### Resource Usage These metrics show how much compute capacity your service is consuming to process requests. - **CPU Time:** the amount of active CPU time used to process your requests. - **RAM Usage:** the amount of RAM used for your service by Fastly (in bytes). - **vCPU Usage:** the amount of vCPU used for your service by Fastly (in seconds). #### Logging These metrics show the volume of log output your service produces. - **Log Lines:** the number of log lines sent to your endpoints from Fastly. - **Total Log Bandwidth:** the total log bytes sent to your endpoints from Fastly. #### Additional metrics The dashboard also displays a collection of additional metrics some of which you can expand and collapse by clicking the collection name. The collections include: - **Cache operations per request:** the number of cache operations performed per request, including cache hits, misses, and passes. - **[Image Optimizer](https://www.fastly.com/documentation/guides/observability/observability-dashboards/about-the-services-menu#about-the-image-optimizer-metrics-collection):** metrics for your services that relate to image optimization. - **[WebSockets](https://www.fastly.com/documentation/guides/observability/observability-dashboards/about-the-services-menu#about-the-websockets-metrics-collection):** metrics for your service that relate to WebSockets. - **[Fanout](https://www.fastly.com/documentation/guides/observability/observability-dashboards/about-the-services-menu#about-the-fanout-metrics-collection):** metrics for your service that relate to Fanout. ## About the All Services page The [**All Services**](https://manage.fastly.com/observability/dashboard/system/all-services/historic/all) page gives you access to the All Services dashboard, which displays aggregated metrics from all of your services. Specifically, it displays the following overview metrics: - **Requests:** a graph displaying the number of requests served across your account. - **Total Bandwidth:** a graph displaying the number of bytes served from Fastly's servers to your website's visitors. - **Error Ratio:** a graph displaying the number of cache errors across your account. The dashboard also displays collections of metrics that you can expand and collapse by clicking the collection name. The collections include: - **Deliver:** aggregated metrics from all of your CDN services. The metrics in this collection mirror the metrics on the [Service Overview dashboard](https://www.fastly.com/documentation/guides/observability/observability-dashboards/about-the-services-menu/#service-overview-dashboard-for-a-cdn-service) for a CDN service. - **Compute:** aggregated metrics from all of your Compute services. The metrics in this collection mirror the metrics on the [Service Overview dashboard](https://www.fastly.com/documentation/guides/observability/observability-dashboards/about-the-services-menu#service-overview-dashboard-for-a-compute-service) for a Compute service. - **[Image Optimizer](https://www.fastly.com/documentation/guides/observability/observability-dashboards/about-the-services-menu#about-the-image-optimizer-metrics-collection):** aggregated metrics from all of your services that relate to Image Optimizer. - **[WebSockets](https://www.fastly.com/documentation/guides/observability/observability-dashboards/about-the-services-menu#about-the-websockets-metrics-collection):** aggregated metrics from all of your services that relate to WebSockets. - **[Fanout](https://www.fastly.com/documentation/guides/observability/observability-dashboards/about-the-services-menu#about-the-fanout-metrics-collection):** aggregated metrics from all of your services that relate to Fanout. - **[Media Shield](https://www.fastly.com/documentation/guides/observability/observability-dashboards/about-the-services-menu#about-the-media-shield-metrics-collection):** aggregated metrics for your service that relate to Media Shield. ## About the Image Optimizer metrics collection The **Image Optimizer** metrics collection appears on the Service Overview dashboard for a CDN service and on the All Services dashboard. These metrics help you understand how much image optimization traffic Fastly is handling for your service, including the split between direct and shield-routed delivery. - **Image Optimizer total responses:** the total number of responses that came from the Fastly Image Optimizer service. - **Image Optimizer shield responses:** the number of responses that came from the Fastly Image Optimizer service via a shield. - **Image Optimizer total bytes delivered:** the total bytes delivered from the Fastly Image Optimizer service, including shield traffic. - **Image Optimizer shield bytes delivered:** the total bytes delivered via a shield from the Fastly Image Optimizer service. - **Image Optimizer video responses:** the number of video responses that came from the Fastly Image Optimizer service. - **Image Optimizer video frames:** the number of video frames that came from the Fastly Image Optimizer service. A video frame is an individual image within a sequence of video. - **Image Optimizer video bytes delivered:** the total bytes of video delivered from the Fastly Image Optimizer service. - **Image Optimizer video shield responses:** the number of video responses delivered via a shield that came from the Fastly Image Optimizer service. - **Image Optimizer video shield bytes delivered:** the total bytes of video delivered via a shield from the Fastly Image Optimizer service. - **Image Optimizer video shield frames:** the 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. ## About the WebSockets metrics collection The **WebSockets** metrics collection appears on the Service Overview dashboard for a CDN service and on the All Services dashboard. These metrics help you understand how much bandwidth and connection time your WebSocket traffic is consuming across clients, Fastly, and your backend. - **WebSockets connection time:** the total duration of passthrough WebSocket connections with end users. - **WebSockets bytes transferred to client:** the total bandwidth transferred by Fastly for your service when using requests. - **WebSockets bytes transferred from client:** the total bandwidth transferred by Fastly for your service when receiving requests. - **WebSockets bytes transferred to origin:** the total bandwidth transferred by Fastly to your backend when receiving requests. - **WebSockets bytes transferred from origin:** the total bandwidth transferred to Fastly from your backend when serving requests. ## About the Fanout metrics collection The **Fanout** metrics collection appears on the Service Overview dashboard for a CDN service and on the All Services dashboard. These metrics help you understand how much bandwidth, connection time, and message volume your Fanout traffic is generating across clients, Fastly, and your backend. - **Fanout connection time:** the total duration of Fanout connections with end users. - **Fanout published messages:** the total number of messages received from the publish API and sent to end users. - **Fanout bytes transferred to client:** the total bandwidth transferred by Fastly for your service when serving requests. - **Fanout bytes transferred from client:** the total bandwidth transferred by Fastly for your service when receiving requests. - **Fanout bytes transferred to backend:** the total bandwidth transferred by Fastly to your backend when receiving requests. - **Fanout bytes transferred from backend:** the total bandwidth transferred to Fastly from your backend when serving requests. ## About the Media Shield metrics collection The **Media Shield** metrics collection appears on the Service Overview dashboard for a CDN service. These metrics help you understand how Media Shield is handling requests across edge and shield layers. ### How is Media Shield caching content? These metrics show cache performance at both the edge and the Media Shield layer. - **Media Shield Hit Ratio:** the percentage of cache hits to all cacheable content at the Media Shield over time. - **Edge Hit Ratio:** the percentage of cache hits to all cacheable content at the edge over time. - **Origin Offload:** the ratio of bytes served to end users that were cached. - **Request Collapsing:** the number of requests that were collapsed and either satisfied by a usable cache object or unable to be satisfied by the resulting cache object. ### What does Media Shield traffic look like? These metrics track the volume of requests and data flowing through Media Shield. - **Media Shield Requests:** the number of requests sent to Media Shield. - **Media Shield Bytes:** the number of bytes sent to Media Shield. - **Media Shield Fetches:** the number of requests from one Fastly POP to another as part of Media Shield. - **Requests by Domain Name:** the number of requests broken out by domain name. ### How are requests distributed across layers? These metrics show where requests are being served from and where they're resulting in misses. - **Media Shield Hit Requests:** the average number of requests that hit the Media Shield. - **Media Shield Miss Requests:** the average number of requests that missed at the Media Shield. - **Edge Miss Requests:** the average number of requests that resulted in a miss at the edge. > **HINT:** Media Shield metrics are derived from our [Metrics and Stats APIs](https://www.fastly.com/documentation/reference/api/metrics-stats/) and are also available as part of [custom dashboards](https://www.fastly.com/documentation/guides/observability/observability-dashboards/working-with-custom-dashboards). ## What's next Dig deeper into details about all areas of the [web interface](/guides/getting-started/navigating-fastly) before you move on to [working with services](/guides/getting-started/services/about-services).