We should get a better understanding of where our different gettor providers are blocked. Right now we use four different providers: - `gitlab.com` - `github.com` - `archive.org` - `docs.google.com` However, some of these domains resolve to a different URL in the process of downloading the file. For example, binaries uploaded to github used to retrieved from `raw.githubusercontent.com` and now it redirects to `github-production-release-asset-2e65be.s3.amazonaws.com`. Perhaps we can use OONI data to stay on track of when gettor becomes unavailable due to blocking these URLs?