Each Section environment has its own overview page. The overview page displays general information about the environment’s proxy stack and HTTP request flow, any recent errors between Section and the origin server, and a number of links to more detailed information about the environment such as DNS information and HTTP logs.
All proxy stack configurations running on Section begin with the edge proxy (the very first proxy that incoming HTTP requests hit when they enter Section) and ends with the LastProxy (the last proxy incoming HTTP requests pass through before leaving Section and hitting your origin server). The proxies in between can be configured to perfectly suite your needs using your environment’s advanced configuration. On the overview page, we display a graphic detailing the proxies currently running in your environment’s configuration and their current order.
We also show you an overview graph that can be toggled between three metrics: Number of HTTP responses served per minute, Breakdown of error requests for the last hour, and Downstream response bandwidth served per minute. This data is pulled from Graphite in the Metrics view, so you can go here to dig deeper into the data.
Number of HTTP responses served per minute gives you a quick sense of the overall volume of traffic hitting your website, including all HTML content and all static resources like images & CSS files. This view is great for a general, low-resolution picture of how your site is doing.
Clicking the Error Responses button below the HTTP graph brings up a breakdown of all error responses served to your users in the last hour, separated out into 3XX (Redirections), 4XX (Client request errors) & 5XX (Server errors) errors. This graph provides a simple way to detect a recent increase in errors served. (#logs).
Downstream response bandwidth served per minute shows you the total amount of bandwidth sent to your customers. This represents the volume of data sent, as opposed to the count (represented by the number of HTTP requests). If you see this increasing but your number of HTTP responses staying the same, then you may have increased the average size of content being requested. You can review the bandwidth by file type in Metrics to see what may be causing this increase.
For Varnish Cache we show Cache hit, pass and misses for the last hour and Upstream request bandwidth served per minute.
Cache hit, pass and misses for the last hour shows the breakdown of how Varnish Cache handled your requests. The higher the hit percentage, the faster your website will perform and the less work required by your servers. You can dig in deeper on the Varnish Cache Statistics view.
Upstream request bandwidth served per minute shows the volume of data sent by the origin proxy. The more content you cache using Varnish, the lower this will be. By lowering this number you decrease the amount of work required by your servers.
For Modsecurity we show Intercepts, audits and passes % for the last hour and Upstream request bandwidth served per minute.
Intercepts, audits and passes % for the last hour shows you the breakdown of how Modsecurity handled your requests. Intercepted means that modsecurity blocked the request (a function that must be activated in your configuration). Audits means that modsecurity looked at the request based on the rules you have turned on. Passes means that modsecurity did not look at the request. You can dig in deeper on the Modsecurity Statistics view.
Upstream request bandwidth served per minute shows the volume of data sent by the origin proxy. The more malicious requests you block using Modsecurity, the lower this will be. By lowering this number you decrease the amount of work required by your servers.
To dig into these metrics further, go to the Metrics tab.