diff --git a/rkt/fetch.go b/rkt/fetch.go
index 6af82e4..2b01311 100644
--- a/rkt/fetch.go
+++ b/rkt/fetch.go
@@ -74,7 +74,14 @@ func fetchImage(img string, ds *cas.Store, ks *keystore.Keystore, discover bool)
 	if err == nil && discover && u.Scheme == "" {
 		if app := newDiscoveryApp(img); app != nil {
 			fmt.Printf("rkt: searching for app image %s\n", img)
-			ep, err := discovery.DiscoverEndpoints(*app, true)
+			ep, attempts, err := discovery.DiscoverEndpoints(*app, true)
+
+			if globalFlags.Debug {
+				for _, a := range attempts {
+					fmt.Fprintf(os.Stderr, "meta tag 'ac-discovery' not found on %s: %v\n", a.Prefix, a.Error)
+				}
+			}
+
 			if err != nil {
 				return "", err
 			}
diff --git a/rkt/trust.go b/rkt/trust.go
index 705a8c4..23c9b10 100644
--- a/rkt/trust.go
+++ b/rkt/trust.go
@@ -157,11 +157,17 @@ func metaDiscoverPubKeyLocations(prefix string) ([]string, error) {
 		return nil, err
 	}
 
-	ep, err := discovery.DiscoverEndpoints(*app, true)
+	ep, attempts, err := discovery.DiscoverPublicKeys(*app, true)
 	if err != nil {
 		return nil, err
 	}
 
+	if globalFlags.Debug {
+		for _, a := range attempts {
+			fmt.Fprintf(os.Stderr, "meta tag 'ac-discovery-pubkeys' not found on %s: %v\n", a.Prefix, a.Error)
+		}
+	}
+
 	return ep.Keys, nil
 }