TIL via @feld about RIPE Atlas Software Probes
Documentation https://atlas.ripe.net/docs/howtos/software-probes.html
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.