ldcard-configuration-for-arbitrary-domains>an additional proxy</a>
between the application and the external service. Since the traffic between the egress gateway&rsquo;s proxy and
the proxy needed for the configuration of arbitrary domains using wildcards is on the pod&rsquo;s local
network, that traffic shouldn&rsquo;t have a significant impact on latency.</p><p>See a <a href=/v1.5/pt-br/blog/2019/egress-performance/>performance evaluation</a> of different Istio configurations set to control egress
traffic