how to index shopify subdomain website in ahrefs?

I have created a shopify website with shopify subdomain and placed some of my websites link in it and I want to index it in ahrefs to get power of its dr (domain rating) anyone have idea how to index it, I have tried some paid tools and tier 2 linking methods but not working.

Сheck if it's being crawled properly. Sometimes, those Shopify subs can be a bit tricky with indexing. I’ve seen cases where just building solid contextual links pointing to your subdomain from high-DR sites helps get it indexed faster.