johnsmith007

You can add hreflang tag easily by using this plugin https://www.ads-software.com/plugins/language-selector-related/

see the example..visit this site https://www.viduweb.com.au/about-us/
and check source code
<link rel=”alternate” href=”https://www.viduweb.com.au/about-us/&#8221; hreflang=”en-au” />
<link rel=”alternate” href=”https://www.viduweb.com/about-us/&#8221; hreflang=”x-default” />

Hello you can try this plugin for this. May be its helpful to you.
https://www.ads-software.com/plugins/language-selector-related/

Example…
<link rel=”alternate” href=”https://www.viduweb.com.au/about-us/&#8221; hreflang=”en-au” />
<link rel=”alternate” href=”https://www.viduweb.com/about-us/&#8221; hreflang=”x-default” />