HetrixTools incident
Server Monitoring - Degraded performance for servers using Cloudflare DNS Servers
Resolved after 1 day, affecting Server Agent Metrics, on July 14, 2025.
We're now seeing traffic back to normal, even though Cloudflare hasn't yet marked the issue as resolved on their status page.
Affected components
Update timeline
- identified Jul 14, 2025, 10:17 PM UTC
Cloudflare's DNS servers (1.1.1.1 and 1.0.0.1) seem to be having major issues: https://www.cloudflarestatus.com/incidents/28r0vbbxsh8f https://x.com/Newspicel/status/1944880481704796373 This issue affects our Server Monitoring Agent installed on servers that use these DNS servers. Since these servers cannot resolve any hostnames at this time, our Server Monitoring Agent cannot send any metrics to our platform. Resolution: Use diverse DNS servers on your servers (i.e., a mixture of Cloudflare and Google DNS servers), or wait for Cloudflare to fix its DNS servers so that your server regains full DNS resolution capabilities.
- monitoring Jul 14, 2025, 10:29 PM UTC
We're seeing traffic coming back towards normal limits, as Cloudflare implemented a fix for its DNS servers. We'll continue to monitor the situation.
- resolved Jul 15, 2025, 10:50 PM UTC
We're now seeing traffic back to normal, even though Cloudflare hasn't yet marked the issue as resolved on their status page.
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