This test needs JavaScript: the page loads https://v4.dns.yan.io and https://v6.dns.yan.io to see which address families your network can actually reach. Request either host directly to test one family.
This test needs JavaScript: the page resolves a random one-shot hostname under probe.yan.io, then reports which resolvers asked this authoritative server for it, and any EDNS Client Subnet they forwarded. It cannot be answered from your HTTP request alone — your resolver is only visible to us once your DNS client queries it.