diff --git a/fastdialer/dialer.go b/fastdialer/dialer.go
index e11ed83..8967cd1 100644
--- a/fastdialer/dialer.go
+++ b/fastdialer/dialer.go
@@ -240,9 +240,15 @@ func (d *Dialer) dial(ctx context.Context, network, address string, shouldUseTLS
 	for _, ip := range IPS {
 		// check if we have allow/deny list
 		if !d.networkpolicy.Validate(ip) {
+			if d.options.OnInvalidTarget != nil {
+				d.options.OnInvalidTarget(hostname, ip, port)
+			}
 			numInvalidIPS++
 			continue
 		}
+		if d.options.OnBeforeDial != nil {
+			d.options.OnBeforeDial(hostname, ip, port)
+		}
 		hostPort := net.JoinHostPort(ip, port)
 		if shouldUseTLS {
 			tlsconfigCopy := tlsconfig.Clone()
diff --git a/fastdialer/options.go b/fastdialer/options.go
index 88c7095..73b6f05 100644
--- a/fastdialer/options.go
+++ b/fastdialer/options.go
@@ -55,6 +55,8 @@ type Options struct {
 	ProxyDialer              *proxy.Dialer
 	WithZTLS                 bool
 	SNIName                  string
+	OnBeforeDial             func(hostname, IP, port string)
+	OnInvalidTarget          func(hostname, IP, port string)
 	OnDialCallback           func(hostname, IP string)
 	DisableZtlsFallback      bool
 	WithNetworkPolicyOptions *networkpolicy.Options