The service was blocking our grapheneos.network connectivity check server for a period of time yesterday/today. It was unblocked after users reported it. It's very strange and I think it reflects quite badly on their processes for blocking supposed malware domains.
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They might have had other issues but they were definitely specifically blocking grapheneos.network. It got confirmed by having users test opening it in their browser on another computer. grapheneos.online wasn't blocked and hopefully neither were our other domains.

