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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 167352 147 0 0
1 47331 28259 58 0 1
2 4134 27770 -4811 -15 -1
3 45804 18748 338 2 0
4 209 14065 41 0 0
5 4812 12667 -231 -2 0
6 5410 9639 9 0 0
7 23956 8608 -639 -7 0
8 22921 8177 -3 0 0
9 37455 8163 6 0 0
10 18229 6794 23 0 0
11 52271 6071 4 0 1
12 28198 5765 -307 -5 -1
13 47524 5027 -6 0 0
14 58659 4989 8 0 0
15 263230 4311 -1 0 0
16 37347 3966 450 13 2
17 262375 3963 10 0 -1
18 5769 3605 -16 0 -1
19 134863 3123 -1 0 0
20 47849 3044 -4 0 0
21 262624 3037 3 0 0
22 52637 2934 -1 0 0
23 139567 2706 -4 0 0
24 38256 2505 -18 -1 0
25 134019 2294 -3 0 2
26 134236 2262 -11 0 2
27 17665 2255 -63 -3 -1
28 58890 2181 -339 -13 -3
29 262958 2063 -12 -1 0
30 29600 2056 8 0 0
31 262554 2046 2046 0 0
32 52964 2045 2 0 2
33 134929 2044 -2 0 -2
34 132438 2041 -2 0 -1
35 198133 2037 92 5 7
36 263296 2034 -6 0 0
37 5639 2028 58 3 4
38 134877 1999 6 0 1
39 197025 1999 -44 -2 -4
40 61784 1995 -43 -2 -3
41 7303 1974 -24 -1 -3
42 262738 1968 246 14 4
43 52447 1920 -2 0 0
44 263108 1837 -65 -3 0
45 48326 1799 4 0 0
46 263539 1778 -193 -10 -6
47 263562 1652 -2 0 1
48 134928 1637 -19 -1 -1
49 12301 1588 17 1 1