Oh Dear

2017
Antwerp, Belgium

Latest News

Jul 13, 2020   |  By Freek Van der Herten
Last week, we improved the email notifications sent by Oh Dear whenever something is down or broken. They now contain links that allow you to snooze further emails, essentially "silencing" the alert for a defined period of time.
Jul 6, 2020   |  By Mattias Geniar
As part of our SSL certificate monitoring, we check a lot of things. The usuals, like if it covers the right domain name or if it hasn't expired are, of course, already included. But SSL certificates can get quite complex. Sometimes, SSL certificates get revoked by the issuer. When that happens, browsers worldwide stop trusting them and will throw an invalid certificate warning.
Jun 9, 2020   |  By Mattias Geniar
We're excited to announce all Oh Dear users now have access to detailed performance metrics for all of their websites! Let us take you through a quick tour of the new performance monitoring.
May 16, 2020   |  By Mattias Geniar
Some of our users have received reports about their AddTrust External CA Root or USERTrust RSA Certification Authority certificate. The problem occurs because the remote server sends a root certificate in the chain that will expire in less than 14 days. Here are the steps to verify this and a few tips on how to resolve it.
May 12, 2020   |  By Mattias Geniar
As part of our service, we perform SSL certificate monitoring. We do this slightly different than other providers, which is why were able to detect a problem with the SSL certificates of a large, commercial, CDN provider. In this post, we'll do a technical deep-dive into how we found this problem!