High IPv6 Latency

Hi,

I’m located in Germany (DTAG) and 1.1.1.1 get’s served to me from Cloudflare’s DUS data center:

traceroute to 1.1.1.1 (1.1.1.1), 30 hops max, 60 byte packets
 1  _gateway (10.0.0.1)  0.245 ms  0.178 ms  0.203 ms
 2  62.155.247.169 (62.155.247.169)  7.377 ms  7.259 ms  7.172 ms
 3  d-ed5-i.D.DE.NET.DTAG.DE (62.154.5.10)  13.074 ms d-ed5-i.D.DE.NET.DTAG.DE (62.154.43.126)  13.005 ms d-ed5-i.D.DE.NET.DTAG.DE (62.154.5.10)  12.910 ms
 4  80.157.129.202 (80.157.129.202)  13.151 ms  12.786 ms  13.220 ms
 5  ae-1-3103.edge5.Dusseldorf1.Level3.net (4.69.136.246)  12.638 ms  12.517 ms ae-2-3203.edge5.Dusseldorf1.Level3.net (4.69.136.250)  12.605 ms
 6  212.162.30.242 (212.162.30.242)  12.987 ms  13.159 ms  13.526 ms
 7  one.one.one.one (1.1.1.1)  12.008 ms  11.821 ms  12.234 ms

Using IPv6 however, I get routed to the Budapest data center, resulting in over twice the latency:

traceroute to 2606:4700:4700::1111 (2606:4700:4700::1111), 30 hops max, 80 byte packets
 1  p200300CA6F31E1010000000000000001.dip0.t-ipconnect.de (2003:ca:6f31:e101::1)  0.451 ms  0.324 ms  0.258 ms
 2  2003:0:8701:4800::1 (2003:0:8701:4800::1)  1.600 ms  1.521 ms  1.415 ms
 3  2003:0:1307:400a::1 (2003:0:1307:400a::1)  9.385 ms  9.306 ms  9.219 ms
 4  2003:0:1307:400a::2 (2003:0:1307:400a::2)  8.668 ms  8.865 ms  8.945 ms
 5  ae-24.r24.frnkge08.de.bb.gin.ntt.net (2001:728:0:2000::1b1)  8.411 ms  8.532 ms  8.435 ms
 6  ae-8.r00.budahu01.hu.bb.gin.ntt.net (2001:728:0:2000::75)  23.339 ms  23.490 ms  23.443 ms
 7  2001:728:0:5000::1326 (2001:728:0:5000::1326)  48.212 ms  46.732 ms  46.703 ms
 8  2400:cb00:123:1024::ac44:e115 (2400:cb00:123:1024::ac44:e115)  29.006 ms
2400:cb00:123:1024::ac44:e110 (2400:cb00:123:1024::ac44:e110)  25.900 ms
2400:cb00:123:1024::ac44:e106 (2400:cb00:123:1024::ac44:e106)  29.341 ms

Thats probably a question for your ISP.

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