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Open DNS (ODNS)

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Distribution of ODNS Components Worldwide
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 45804 20530 -56 0 0
1 4812 13759 -416 -3 0
2 209 11060 -50 0 0
3 37455 8167 7 0 0
4 28198 7410 -2 0 0
5 37403 6841 -34 0 0
6 58659 6584 27 0 0
7 5410 6363 -25 0 0
8 22921 6125 1 0 0
9 5769 5348 94 2 1
10 52271 5282 -2 0 -1
11 27881 4135 0 0 0
12 150008 3540 26 1 0
13 134863 3341 1 0 0
14 28296 3272 -17 -1 0
15 58890 3065 3 0 0
16 47849 3052 -1 0 0
17 47524 2886 -14 0 0
18 134236 2810 1 0 0
19 18229 2775 -9 0 0
20 29600 2440 3 0 0
21 263244 2422 38 2 0
22 262769 2340 1 0 0
23 133647 2309 15 1 1
24 134019 2294 -5 0 -1
25 197025 2042 1 0 3
26 262767 2033 -9 0 1
27 263408 2030 -16 -1 -1
28 61784 2024 -8 0 1
29 264233 2018 -8 0 1
30 272122 2000 -165 -8 -5
31 7303 1971 -18 -1 0
32 139567 1952 0 0 0
33 133676 1924 0 0 0
34 52447 1906 3 0 0
35 262958 1893 9 0 0
36 134866 1826 0 0 0
37 132941 1790 1 0 1
38 263296 1790 0 0 -1
39 48326 1770 -2 0 0
40 9121 1765 3 0 0
41 5639 1714 23 1 0
42 5483 1534 32 2 2
43 207620 1532 -1 0 -1
44 138235 1503 0 0 -1
45 264100 1487 254 21 12
46 3257 1439 8 1 0
47 133692 1405 1 0 0
48 134877 1405 14 1 2
49 263333 1404 4 0 0