portal.arkansas.gov is an alias of 94q3x455assh.wpeproxy.com, which has no IPv6 portal.arkansas.gov is a CNAME, so it can't also have its own AAAA record. Ask whoever runs 94q3x455assh.wpeproxy.com to enable IPv6 there — or replace the alias with the A and AAAA records they give you. Why some hosts don't offer IPv6
www.portal.arkansas.gov is an alias of 94q3x455assh.wpeproxy.com, which has no IPv6 www.portal.arkansas.gov is a CNAME, so it can't also have its own AAAA record. Ask whoever runs 94q3x455assh.wpeproxy.com to enable IPv6 there — or replace the alias with the A and AAAA records they give you. Why some hosts don't offer IPv6
Mail servers without IPv6 Your domain's mail goes to its own address, which has no AAAA record.
Nameservers without IPv6 dns1.state.ar.us, dns5.state.ar.us, dns4.state.ar.us, dns2.state.ar.us, dns3.state.ar.us all have no AAAA record, so a resolver that only speaks IPv6 can't look your domain up. Most DNS providers offer IPv6 nameservers; ask yours, or move DNS to one that does.
Visitors on IPv6-only networks (many mobile carriers) can still reach it, but only through a translator their carrier runs (NAT64). The site itself has no IPv6 address — and you can't make one up from the IPv4. Why some hosts don't offer it
Copy the evidence— a citation-ready record of this measurement