Update from support feedback: apex domain A/AAAA records

customize/custom-domain.mdx

@@ -80,9 +80,35 @@
 
 ### Apex domains
 
-If you host your documentation at an apex domain like `example.com` with no subdomain, your DNS provider must support CNAME flattening or a virtual record type like `ALIAS` or `ANAME`. Standard DNS does not allow a `CNAME` record at the apex of a domain, so providers without this support cannot create the record shown in your dashboard.
+If you host your documentation at an apex domain like `example.com` with no subdomain, you have two options:
 
-Providers that support apex `CNAME` records include Cloudflare (CNAME flattening), Amazon Route 53 (alias records), DNSimple (`ALIAS` records), and Porkbun (`ALIAS` records). If your provider does not support any of these, host your documentation at a subdomain like `docs.example.com` instead.
+- Use CNAME flattening or a virtual record type like `ALIAS` or `ANAME` on providers that support it.
+- Use `A` and `AAAA` records that point directly to Mintlify's edge.
+
+Standard DNS does not allow a `CNAME` record at the apex of a domain, so providers without flattening or `ALIAS`/`ANAME` support cannot create the record shown in your dashboard.
+
+#### CNAME flattening or ALIAS records
+
+Providers that support apex `CNAME` records include Cloudflare (CNAME flattening), Amazon Route 53 (alias records), DNSimple (`ALIAS` records), and Porkbun (`ALIAS` records). On these providers, create the record shown in your dashboard as-is and the provider resolves it to Mintlify's edge automatically.
+
+#### A and AAAA records
+
+If your provider does not support CNAME flattening or `ALIAS`/`ANAME` records, point your apex domain at Mintlify's edge with the following `A` and `AAAA` records instead of the `CNAME` shown in your dashboard:
+
+```text
+A    | <your-domain> | 162.159.143.13
+A    | <your-domain> | 172.66.3.9
+AAAA | <your-domain> | 2606:4700:7::2fd
+AAAA | <your-domain> | 2a06:98c1:58::2fd
+```
+
+Add all four records. Keep the verification `TXT` records from your dashboard in place — they are still required for domain verification and TLS certificate issuance.
+
+<Note>
+  The `CNAME` and `A`/`AAAA` approaches are mutually exclusive. If you use the `A` and `AAAA` records above, do not also create a `CNAME` for the same hostname.
+</Note>
+
+If you would rather not manage apex records, host your documentation at a subdomain like `docs.example.com` and redirect the apex to it at your DNS provider or CDN.
 
 ### DNS propagation