diff --git a/src/lib/middleware/response-time-metrics.ts b/src/lib/middleware/response-time-metrics.ts
index d2637e81711a..c7dc5fe9d539 100644
--- a/src/lib/middleware/response-time-metrics.ts
+++ b/src/lib/middleware/response-time-metrics.ts
@@ -67,15 +67,21 @@ export function responseTimeMetrics(
         }
 
         if (flagResolver.isEnabled('uniqueSdkTracking')) {
-            // if some SDK doesn't provide any
             const connectionId =
                 req.headers['x-unleash-connection-id'] ||
-                `${req.headers['unleash-instanceid']}${req.ip}`;
-            // todo: exclude short lived APIs like PHP and Next
-            eventBus.emit(SDK_CONNECTION_ID_RECEIVED, {
-                connectionId,
-                type: req.url.includes('/frontend') ? 'frontend' : 'backend',
-            });
+                req.headers['unleash-instanceid'];
+            if (req.url.includes('/api/client') && connectionId) {
+                eventBus.emit(SDK_CONNECTION_ID_RECEIVED, {
+                    connectionId,
+                    type: 'backend',
+                });
+            }
+            if (req.url.includes('/api/frontend') && connectionId) {
+                eventBus.emit(SDK_CONNECTION_ID_RECEIVED, {
+                    connectionId,
+                    type: 'frontend',
+                });
+            }
         }
 
         const timingInfo = {