Afraid that’s not on the roadmap, but there’s Preconnect (on Settings -> Autoptimize -> Extra), which actually includes the dns-request so it’s even better then dns-prefetch 😉
Thanks for the quick reply.
I am using Preconnect for two links but whenever I am inserting more than two links the PageSpeed Insights showing warning for Preconnect links. That’s why asking for dns-prefetch option in AO.
well, you could add them with a code snippet, there is some example code on e.g. https://www.isaumya.com/how-to-enable-dns-prefetching-in-wordpress/ 🙂