I'm curious if Pingdom's DNS testing is sufficient to draw performance conclusions about these services. I ask because the summary results table is curious: it only lists the first NS record for each hostname. (NB: luilui.com does not see to use netriplex currently). If 14 worldwide testing nodes are pegged to try one nameserver and that nameserver is not an anycast node, it seems to me this test is not accurate. If someone knows what Pingdom is doing behind the scenes -- or if this is just a data display issue -- I'd love to know.