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That site correctly lists apple.com as not supporting IPv6. The funny thing is that www.apple.com does support it.
by lokedhs 10y ago
That site correctly lists apple.com as not supporting IPv6. The funny thing is that www.apple.com does support it.
- vetinari 10y agoSame with microsoft.com.
- ohitsdom 10y agoHow is this the case?
- fps 10y agoBoth Microsoft and Apple's www sites use Akamai's CDN, via a cname to a CNAME to something in akamaiedge.net, which support ipv6. The apex record of a domain (that is, the root record, microsoft.com or apple.com) cannot be a CNAME, it can only have an A, NS, MX or TXT record. A records make dynamic infrastructure hard, because they require API coordination between your DNS provider and your CDN. So Microsoft and apple host their own apex domain records via A records to static IPs in their own IP blocks, and have these servers issue a permanent http redirect to www.