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Open DNS (ODNS)

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Distribution of ODNS Components over the World
Number of ODNS Components
Share of ODNS Components of Top-50 Countries

This plot shows the Top-50 countries which host the most transparent forwarders (absolut). The bars show the share of all ODNS components per country, the left y-axis shows the absolut amount of transparent forwarders active in these countries. Countries marked with a '*' are emerging markets.

Consolidation Effect of Transparent Forwarders in Top-50 Countries

This plot shows the Top-50 countries which host the most transparent forwarders (absolut). Countries marked with a '*' are emerging markets. This heatmap shows where transparent forwarders relay their requests to. Most of the requests are forwarded to resolver of Google.

Top 50 Autonomous System with most Transparent Forwarders

This table shows the top-50 autonomous systems (AS) that host most of the transparent DNS forwarders as presented in the ACM CoNEXT'21 paper. The full data set is also available as part of the artifacts collection.

ASN # Transparent Forwarders Δ Last Week [#] Δ Last Week [%] Δ Last Week [Rank]
0 9121 156050 -4113 -3 0
1 47331 26083 7861 43 1
2 45804 18760 24 0 -1
3 209 14141 -18 0 0
4 4812 12954 463 4 0
5 23956 10626 -331 -3 0
6 5410 9614 21 0 0
7 22921 8170 -14 0 1
8 37455 8165 -1 0 1
9 28198 7315 -1078 -13 -2
10 18229 7012 106 2 0
11 52271 6072 -1 0 0
12 47524 5053 -13 0 0
13 58659 4960 -18 0 0
14 263230 4315 3 0 1
15 37347 3885 -170 -4 1
16 5769 3497 35 1 1
17 134863 3101 5 0 1
18 47849 3049 -1 0 1
19 262624 2973 135 5 2
20 52637 2891 1 0 0
21 139567 2560 4 0 1
22 58890 2479 214 9 3
23 262375 2380 679 40 21
24 134236 2283 1 0 0
25 134019 2220 -80 -3 -2
26 4134 2107 -16 -1 1
27 5639 2081 88 4 11
28 262958 2078 -1 0 0
29 262637 2068 -100 -5 -3
30 29600 2054 -2 0 -1
31 52964 2045 -3 0 -1
32 132438 2044 -2 0 -1
33 197025 2043 -1 0 0
34 134929 2042 -2 0 -2
35 17665 2040 57 3 4
36 61784 2028 -1 0 -1
37 7303 2010 7 0 -1
38 263296 2004 -40 -2 -4
39 263539 1995 1 0 -2
40 262738 1975 0 0 0
41 263108 1917 -25 -1 0
42 52447 1911 -5 0 0
43 134877 1865 -3 0 0
44 134928 1635 -4 0 1
45 263562 1596 77 5 2
46 12301 1593 24 2 0
47 5617 1551 -2879 -65 -33
48 263265 1459 423 41 15
49 28181 1432 -48 -3 -1