The Real Internet

Test of dragon.cz

F

Detailed results

DNS servers

The domain has all its DNS servers accessible over IPv6, great!

dragon.cz

• ✓ ns1.dragon.cz [2a01:28:ca:258::2]
• ✓ ns.dragon.cz [2a02:13b8:0:53::53]

Web servers

Website without IPv6. That is grade E/F.

• ✗ 2a02:13b8:7000::2 (not responding)

E-mail servers

E-mail servers without IPv6. That is grade E/F.

• ✗ post.dragon.cz [no IPv6]

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