DNSFilter incident
DNS Resolution is Intermittent - Investigating
DNSFilter experienced a minor incident on September 22, 2026 affecting Europe and Europe, lasting 2h 12m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Sep 22, 2026, 12:14 PM UTC
Our engineering team is currently investigating an issue that is causing DNS resolution to be Intermittent across the UK region and is currently working with our partners to resolve the situation.
- monitoring Sep 22, 2026, 12:26 PM UTC
Resolution is back in and working; engineering is monitoring.
- resolved Sep 22, 2026, 02:26 PM UTC
Our connectivity is provided through an Internet Exchange (IX), essentially a shared hub that connects us with many other networks. If our own connection to the IX had gone down, it would have affected all customers equally, but that wasn't the case here. Based on what we're seeing, it's possible that a subset of networks sharing the same infrastructure at the IX experienced a localized issue, which would explain why only some customers noticed a problem while others didn't. We want to be transparent that this is our best working theory rather than a confirmed root cause, as we don't have full visibility into that specific piece of infrastructure. We also checked with our upstream provider, and they've confirmed that all systems on their end showed as healthy throughout this period. We're continuing to monitor closely, and we'll update you if we learn anything further. Please let us know if you're still experiencing any issues.