Traffic is only counts on Live (#8819)

* Document that traffic is counted for the Live environment only

* Add plat edge routing to codeowners file for traffic guide

CODEOWNERS

@@ -5,6 +5,8 @@
 
 # The Platform-Edge-Routing team is responsible for connecting custom domains to Pantheon
 source/content/guides/domains/ @pantheon-systems/platform-edge-routing
+# The Platform-Edge-Routing team is responsible for traffic limits
+source/content/guides/account-mgmt/traffic/ @pantheon-systems/platform-edge-routing
 # The FileSystem team is responsible for managing static files on Pantheon
 source/content/guides/filesystem/ @pantheon-systems/filesystem
 # The lifecycle-ops team is responsible for Integrated Composer

source/content/guides/account-mgmt/traffic/03-measure.md

@@ -17,7 +17,7 @@ product: [--]
 integration: [--]
 ---
 
-The number of unique visits displayed in Pantheon’s Site Dashboard determines the traffic Pantheon will apply for evaluating use on your site under your pricing plan.
+The number of unique visits displayed in Pantheon’s Site Dashboard determines the traffic Pantheon will apply for evaluating use on your site under your pricing plan. Only the Live environment traffic counts towards traffic limits for a given site plan.
 
 ## Site Traffic Measurement Model
 
@@ -42,6 +42,8 @@ If there are specific cases that create traffic spikes or events for your site,
 <Partial file="traffic-limits-overages.md" />
 
 ## FAQ
+### What environments count towards traffic limits?
+Only traffic for the Live environment is counted towards a site plan's traffic limit. Traffic for non-live environments (Dev, Test, and Multidev environments) are not counted towards the plan's traffic limit.  
 
 ### What traffic is excluded from Pantheon's metrics?
 

source/content/guides/account-mgmt/traffic/07-faq.md

@@ -44,4 +44,7 @@ Analytics implementations can be variable. It may be that your analytics solutio
 
 Content pre-fetching increasingly plays a role in driving up traffic metrics without having the same impact on visitor-centric analytics. Speculatively loading pages in the background is a common tactic to improve the user experience on the web, which we support people using. However, this does generate more overall traffic from the perspective of the platform.
 
+### What environments count towards traffic limits?
+Only traffic for the Live environment is counted towards a site plan's traffic limit. Traffic for non-live environments (Dev, Test, and Multidev environments) are not counted towards the plan's traffic limit.  
+
 <Partial file="traffic-overages-faq.md" />