Outage in Deno

Connectivity issues from ATu0026T networks to IPv4

Resolved Minor
June 27, 2025 - Started 4 months ago - Lasted 5 days

Incident Report

We are getting customer reports regarding connectivity issues to Deno Deploy from ATu0026T networks when connecting via IPv4. We are in contact with ATu0026T to resolve the issue as quickly as possible. IPv6 traffic is unaffected.If you are a Deno Deploy customer with a custom domain and are affected by this issue, please contact support@deno.com.
Components affected
Deno Edge Network

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Latest Updates ( sorted recent to last )
IDENTIFIED 4 months ago - at 06/26/2025 12:30PM

We are getting customer reports regarding connectivity issues to Deno Deploy from ATu0026T networks when connecting via IPv4. We are in contact with ATu0026T to resolve the issue as quickly as possible. IPv6 traffic is unaffected.If you are a Deno Deploy customer with a custom domain and are affected by this issue, please contact support@deno.com.

IDENTIFIED 4 months ago - at 06/28/2025 12:52PM

The issue is still ongoing. We continue chasing ATu0026T to resolve the issue.ATu0026T users are not able to reach custom domains hosted on Deno Deploy over IPv4.

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