Content

Mirrors generating most traffic in 2021

The total outgoing traffic of ftp.fau.de increased from 4.12 PiB in 2020 to 5.04 PiB in 2021, an increase of 22%.

Rank Mirror Traffic 2021 in TB Rank/Traffic 2020 (for comparison)
1 mint/iso 849 2 / 389
2 kiwix (offline Wikipedia) 519 1 / 538
3 fdroid (Free and Open-Source Android app repository 304 5 / 242
4 qtproject (Qt Toolkit) 275 4 / 356
5 gimp 266 3 / 376
6 lineageos (Free and Open-Source Android distribution) 199 6 / 204
7 eclipse 193 – / 99
8 fedora 186 8 / 148
9 opensuse 175 10 / 108
10 centos 160 7 / 159

The percentage of IPv6 traffic stagnated, with 27% (1.36 PiB), after 27% in 2020, 25% in 2019, 22% in 2018, 22% in 2017, 14% in 2016 and 11% in 2015.

There is very little change in the Top 10 overall. Sure, some mirrors got a little more or less traffic, and thus changed position in the Top 10, but fluctuations are little and nothing really stands out.

The biggest change is with mint/iso, which already was in the Top 10 on Rank 2 last year, but assured Rank 1 in 2021 quite clearly, with a large gap to Rank 2. We are not sure what caused the traffic increase for that mirror, our best guess is that they changed their download-page to prefer Torrents with webseeds, thus we are now seing a certain percentage of each download.