Outage in DNSimple

URL Redirector outage for HTTPS sources

Resolved Major

August 21, 2025 - Started 8 months ago - Lasted about 1 hour
Official incident page

Incident Report

We have identified an issue with the SSL chain that our Redirector service uses for the most recent Let's Encrypt SSL certificates. This issue only impacts domains with URL redirects with HTTPS sources and SSL certificates issued from August 20th onwards. This issue doesn't impact URL redirects with HTTP sources. Our team is actively engaged and will release a fixed certificate chain momentarily.

Components affected

DNSimple URL Redirector

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Latest Updates ( sorted recent to last )

RESOLVED 8 months ago - at 08/21/2025 12:30PM

This incident has been resolved.

MONITORING 8 months ago - at 08/21/2025 11:57AM

A fix has been implemented and we are monitoring the results.

IDENTIFIED 8 months ago - at 08/21/2025 11:25AM

We have identified an issue with the SSL chain that our Redirector service uses for the most recent Let's Encrypt SSL certificates. This issue only impacts domains with URL redirects with HTTPS sources and SSL certificates issued from August 20th onwards. This issue doesn't impact URL redirects with HTTP sources.

Our team is actively engaged and will release a fixed certificate chain momentarily.

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