diff --git a/pkg/api/entries.go b/pkg/api/entries.go
index 4efba7ba3..c04df49cc 100644
--- a/pkg/api/entries.go
+++ b/pkg/api/entries.go
@@ -23,6 +23,8 @@ import (
 	"fmt"
 	"net/http"
 	"net/url"
+	"strconv"
+	"time"
 
 	"github.com/cyberphone/json-canonicalization/go/src/webpki.org/jsoncanonicalizer"
 	"github.com/go-openapi/runtime"
@@ -246,6 +248,14 @@ func createLogEntry(params entries.CreateLogEntryParams) (models.LogEntry, middl
 
 	if indexStorageClient != nil {
 		go func() {
+			start := time.Now()
+			var err error
+			defer func() {
+				labels := map[string]string{
+					"success": strconv.FormatBool(err == nil),
+				}
+				metricIndexStorageLatency.With(labels).Observe(float64(time.Since(start)))
+			}()
 			keys, err := entry.IndexKeys()
 			if err != nil {
 				log.ContextLogger(ctx).Errorf("getting entry index keys: %v", err)
diff --git a/pkg/api/metrics.go b/pkg/api/metrics.go
index 64c91b493..56b97788b 100644
--- a/pkg/api/metrics.go
+++ b/pkg/api/metrics.go
@@ -34,6 +34,11 @@ var (
 		Help: "The status of publishing events to Pub/Sub",
 	}, []string{"event", "content_type", "status"})
 
+	metricIndexStorageLatency = promauto.NewSummaryVec(prometheus.SummaryOpts{
+		Name: "rekor_index_storage_latency_summary",
+		Help: "Latency of backend index insertion by success/failure",
+	}, []string{"success"})
+
 	MetricLatency = promauto.NewHistogramVec(prometheus.HistogramOpts{
 		Name: "rekor_api_latency",
 		Help: "Api Latency on calls",