hreflang

hreflang

<link rel="alternate" href="https://example.com/" hreflang="en" />
<link rel="alternate" href="https://example.com/en-gb/" hreflang="en-gb" />
<link rel="alternate" href="https://example.com/en-au/" hreflang="en-au" />

en-gb= English / Great Britain
en-au= English / Australia

Search Console