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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 270394 -6529 -2 0
1 45804 19641 821 4 0
2 4812 14638 1447 11 0
3 209 12189 -12 0 0
4 28198 10192 152 2 0
5 5410 8738 -73 -1 0
6 37403 8449 5 0 0
7 37455 7747 -99 -1 0
8 22921 5855 -27 0 0
9 52271 5815 -16 0 0
10 58659 5810 344 6 1
11 18229 5569 58 1 -1
12 27881 4091 -112 -3 0
13 5769 4080 30 1 0
14 47524 3715 -54 -1 0
15 139567 3275 10 0 0
16 28296 3149 -1 0 1
17 47331 3142 219 7 3
18 23688 2986 -275 -8 -2
19 134863 2984 -1 0 -1
20 47849 2926 2 0 -1
21 133647 2858 -3 0 1
22 264100 2741 -157 -5 -1
23 5617 2644 -48 -2 0
24 263333 2577 -12 0 0
25 134236 2426 -32 -1 0
26 262738 2353 -15 -1 0
27 134019 2189 -11 0 0
28 29600 1968 -9 0 0
29 262767 1964 3 0 1
30 61784 1959 12 1 3
31 52964 1954 -9 0 -2
32 134929 1953 -2 0 -1
33 197025 1946 -9 0 -1
34 7303 1942 19 1 0
35 135223 1911 26 1 0
36 262958 1850 -4 0 0
37 52447 1824 -10 -1 0
38 134866 1781 -4 0 0
39 5639 1747 -32 -2 0
40 38256 1720 -1 0 1
41 48326 1719 43 3 2
42 264668 1714 22 1 0
43 134877 1611 -155 -9 -3
44 263099 1515 -1 0 0
45 132978 1469 -2 0 3
46 135339 1464 -20 -1 -1
47 132941 1462 -3 0 2
48 138235 1446 -2 0 2
49 17665 1428 22 2 2